diff --git a/.changeset/bulk-actions-sdk-api.md b/.changeset/bulk-actions-sdk-api.md
new file mode 100644
index 00000000000..e62f8dcc4c2
--- /dev/null
+++ b/.changeset/bulk-actions-sdk-api.md
@@ -0,0 +1,6 @@
+---
+"@trigger.dev/core": patch
+"@trigger.dev/sdk": patch
+---
+
+Add SDK and API client helpers for run bulk actions.
diff --git a/.server-changes/bulk-actions-api-sdk.md b/.server-changes/bulk-actions-api-sdk.md
new file mode 100644
index 00000000000..01da3859cbd
--- /dev/null
+++ b/.server-changes/bulk-actions-api-sdk.md
@@ -0,0 +1,6 @@
+---
+area: webapp
+type: feature
+---
+
+Add API and SDK support for creating, listing, retrieving, polling, and aborting run bulk actions.
diff --git a/apps/webapp/app/presenters/v3/ApiBulkActionPresenter.server.ts b/apps/webapp/app/presenters/v3/ApiBulkActionPresenter.server.ts
new file mode 100644
index 00000000000..5e329bee404
--- /dev/null
+++ b/apps/webapp/app/presenters/v3/ApiBulkActionPresenter.server.ts
@@ -0,0 +1,155 @@
+import {
+  type BulkActionGroup,
+  type BulkActionStatus,
+  type BulkActionType,
+} from "@trigger.dev/database";
+import { z } from "zod";
+import { BasePresenter } from "./basePresenter.server";
+
+const DEFAULT_PAGE_SIZE = 25;
+const MAX_PAGE_SIZE = 100;
+
+export const ApiBulkActionListSearchParams = z.object({
+  "page[size]": z.coerce.number().int().positive().min(1).max(MAX_PAGE_SIZE).optional(),
+  "page[after]": z.string().optional(),
+  "page[before]": z.string().optional(),
+});
+
+export type ApiBulkActionListSearchParams = z.infer<typeof ApiBulkActionListSearchParams>;
+
+type BulkActionListCursor = {
+  createdAt: Date;
+  id: string;
+};
+
+type BulkActionRow = Pick<
+  BulkActionGroup,
+  | "id"
+  | "friendlyId"
+  | "name"
+  | "status"
+  | "type"
+  | "createdAt"
+  | "completedAt"
+  | "totalCount"
+  | "successCount"
+  | "failureCount"
+>;
+
+export class ApiBulkActionPresenter extends BasePresenter {
+  public async list(environmentId: string, searchParams: ApiBulkActionListSearchParams) {
+    const pageSize = searchParams["page[size]"] ?? DEFAULT_PAGE_SIZE;
+    const after = searchParams["page[after]"];
+    const before = searchParams["page[before]"];
+
+    if (after && before) {
+      throw new Error("Only one of page[after] or page[before] can be provided");
+    }
+
+    const cursor = decodeCursor(after ?? before);
+    const direction = before ? "backward" : "forward";
+
+    const where = {
+      environmentId,
+      ...(cursor
+        ? direction === "forward"
+          ? {
+              OR: [
+                { createdAt: { lt: cursor.createdAt } },
+                { createdAt: cursor.createdAt, id: { lt: cursor.id } },
+              ],
+            }
+          : {
+              OR: [
+                { createdAt: { gt: cursor.createdAt } },
+                { createdAt: cursor.createdAt, id: { gt: cursor.id } },
+              ],
+            }
+        : {}),
+    };
+
+    const rows = await this._replica.bulkActionGroup.findMany({
+      select: bulkActionSelect,
+      where,
+      orderBy:
+        direction === "forward"
+          ? [{ createdAt: "desc" }, { id: "desc" }]
+          : [{ createdAt: "asc" }, { id: "asc" }],
+      take: pageSize + 1,
+    });
+
+    const hasMore = rows.length > pageSize;
+    const pageRows = rows.slice(0, pageSize);
+    const dataRows = direction === "forward" ? pageRows : [...pageRows].reverse();
+
+    const first = dataRows.at(0);
+    const last = dataRows.at(-1);
+
+    return {
+      data: dataRows.map(apiBulkActionObject),
+      pagination: {
+        next: last && (hasMore || direction === "backward") ? encodeCursor(last) : undefined,
+        previous:
+          first &&
+          ((direction === "forward" && Boolean(after)) || (direction === "backward" && hasMore))
+            ? encodeCursor(first)
+            : undefined,
+      },
+    };
+  }
+}
+
+export const bulkActionSelect = {
+  id: true,
+  friendlyId: true,
+  name: true,
+  status: true,
+  type: true,
+  createdAt: true,
+  completedAt: true,
+  totalCount: true,
+  successCount: true,
+  failureCount: true,
+} as const;
+
+export function apiBulkActionObject(row: BulkActionRow) {
+  return {
+    id: row.friendlyId,
+    name: row.name ?? undefined,
+    type: row.type as BulkActionType,
+    status: row.status as BulkActionStatus,
+    counts: {
+      total: row.totalCount,
+      success: row.successCount,
+      failure: row.failureCount,
+    },
+    createdAt: row.createdAt,
+    completedAt: row.completedAt ?? undefined,
+  };
+}
+
+function encodeCursor(row: Pick<BulkActionRow, "createdAt" | "id">) {
+  return Buffer.from(JSON.stringify({ createdAt: row.createdAt.getTime(), id: row.id })).toString(
+    "base64url"
+  );
+}
+
+function decodeCursor(cursor: string | undefined): BulkActionListCursor | undefined {
+  if (!cursor) {
+    return undefined;
+  }
+
+  try {
+    const parsed = JSON.parse(Buffer.from(cursor, "base64url").toString("utf8")) as {
+      createdAt?: unknown;
+      id?: unknown;
+    };
+    if (typeof parsed.createdAt !== "number" || typeof parsed.id !== "string") {
+      throw new Error("Invalid cursor");
+    }
+
+    return { createdAt: new Date(parsed.createdAt), id: parsed.id };
+  } catch {
+    throw new Error("Invalid cursor");
+  }
+}
diff --git a/apps/webapp/app/routes/api.v1.bulk-actions.$bulkActionId.abort.ts b/apps/webapp/app/routes/api.v1.bulk-actions.$bulkActionId.abort.ts
new file mode 100644
index 00000000000..a672faf9e41
--- /dev/null
+++ b/apps/webapp/app/routes/api.v1.bulk-actions.$bulkActionId.abort.ts
@@ -0,0 +1,50 @@
+import { json } from "@remix-run/server-runtime";
+import { z } from "zod";
+import { prisma } from "~/db.server";
+import { logger } from "~/services/logger.server";
+import { createActionApiRoute } from "~/services/routeBuilders/apiBuilder.server";
+import { BulkActionService } from "~/v3/services/bulk/BulkActionV2.server";
+import { ServiceValidationError } from "~/v3/services/common.server";
+
+const ParamsSchema = z.object({
+  bulkActionId: z.string(),
+});
+
+const { action } = createActionApiRoute(
+  {
+    params: ParamsSchema,
+    corsStrategy: "none",
+    authorization: {
+      action: "write",
+      resource: () => ({ type: "runs" }),
+    },
+    // Existence/auth gate. Reads from primary so create -> abort doesn't 404 on
+    // replica lag; the abort write path re-reads and mutates on primary.
+    findResource: async (params, auth) => {
+      return prisma.bulkActionGroup.findFirst({
+        select: { id: true },
+        where: {
+          friendlyId: params.bulkActionId,
+          environmentId: auth.environment.id,
+        },
+      });
+    },
+  },
+  async ({ params, authentication }) => {
+    const service = new BulkActionService();
+
+    try {
+      const result = await service.abort(params.bulkActionId, authentication.environment.id);
+      return json({ id: result.bulkActionId });
+    } catch (error) {
+      if (error instanceof ServiceValidationError) {
+        return json({ error: error.message }, { status: error.status ?? 400 });
+      }
+
+      logger.error("Failed to abort API bulk action", { error });
+      return json({ error: "Failed to abort bulk action" }, { status: 500 });
+    }
+  }
+);
+
+export { action };
diff --git a/apps/webapp/app/routes/api.v1.bulk-actions.$bulkActionId.ts b/apps/webapp/app/routes/api.v1.bulk-actions.$bulkActionId.ts
new file mode 100644
index 00000000000..cfbf50e052c
--- /dev/null
+++ b/apps/webapp/app/routes/api.v1.bulk-actions.$bulkActionId.ts
@@ -0,0 +1,36 @@
+import { json } from "@remix-run/server-runtime";
+import { z } from "zod";
+import { prisma } from "~/db.server";
+import {
+  apiBulkActionObject,
+  bulkActionSelect,
+} from "~/presenters/v3/ApiBulkActionPresenter.server";
+import { createLoaderApiRoute } from "~/services/routeBuilders/apiBuilder.server";
+
+const ParamsSchema = z.object({
+  bulkActionId: z.string(),
+});
+
+export const loader = createLoaderApiRoute(
+  {
+    params: ParamsSchema,
+    corsStrategy: "none",
+    authorization: {
+      action: "read",
+      resource: () => ({ type: "runs" }),
+    },
+    // Read from primary so create -> retrieve/poll doesn't 404 on replica lag.
+    findResource: async (params, auth) => {
+      return prisma.bulkActionGroup.findFirst({
+        select: bulkActionSelect,
+        where: {
+          friendlyId: params.bulkActionId,
+          environmentId: auth.environment.id,
+        },
+      });
+    },
+  },
+  async ({ resource }) => {
+    return json(apiBulkActionObject(resource));
+  }
+);
diff --git a/apps/webapp/app/routes/api.v1.bulk-actions.ts b/apps/webapp/app/routes/api.v1.bulk-actions.ts
new file mode 100644
index 00000000000..16b8b46acba
--- /dev/null
+++ b/apps/webapp/app/routes/api.v1.bulk-actions.ts
@@ -0,0 +1,129 @@
+import { json } from "@remix-run/server-runtime";
+import { CreateBulkActionRequestBody, type QueueTypeName } from "@trigger.dev/core/v3";
+import type { z } from "zod";
+import {
+  ApiBulkActionListSearchParams,
+  ApiBulkActionPresenter,
+} from "~/presenters/v3/ApiBulkActionPresenter.server";
+import { ApiRunListPresenter } from "~/presenters/v3/ApiRunListPresenter.server";
+import { logger } from "~/services/logger.server";
+import type { RunListInputFilters } from "~/services/runsRepository/runsRepository.server";
+import {
+  createActionApiRoute,
+  createLoaderApiRoute,
+} from "~/services/routeBuilders/apiBuilder.server";
+import { BulkActionService } from "~/v3/services/bulk/BulkActionV2.server";
+import { ServiceValidationError } from "~/v3/services/common.server";
+
+const MAX_CREATE_BODY_SIZE = 1024 * 1024;
+
+const { action } = createActionApiRoute(
+  {
+    body: CreateBulkActionRequestBody,
+    maxContentLength: MAX_CREATE_BODY_SIZE,
+    corsStrategy: "none",
+    authorization: {
+      action: "write",
+      resource: () => ({ type: "runs" }),
+    },
+  },
+  async ({ body, authentication }) => {
+    if (!body) {
+      return json({ error: "Invalid request body" }, { status: 400 });
+    }
+
+    const service = new BulkActionService();
+
+    try {
+      const result = await service.create({
+        organizationId: authentication.environment.organizationId,
+        projectId: authentication.environment.projectId,
+        environmentId: authentication.environment.id,
+        userId: authentication.actor?.sub ?? null,
+        action: body.action,
+        title: body.name,
+        region: body.targetRegion,
+        filters: body.runIds
+          ? { runId: body.runIds }
+          : bulkActionFilterToRunListFilters(body.filter),
+        triggerSource: "api",
+      });
+
+      return json({ id: result.bulkActionId }, { status: 202 });
+    } catch (error) {
+      if (error instanceof ServiceValidationError) {
+        return json({ error: error.message }, { status: error.status ?? 400 });
+      }
+
+      logger.error("Failed to create API bulk action", { error });
+      return json({ error: "Failed to create bulk action" }, { status: 500 });
+    }
+  }
+);
+
+const loader = createLoaderApiRoute(
+  {
+    searchParams: ApiBulkActionListSearchParams,
+    corsStrategy: "none",
+    authorization: {
+      action: "read",
+      resource: () => ({ type: "runs" }),
+    },
+    findResource: async () => 1,
+  },
+  async ({ searchParams, authentication }) => {
+    const presenter = new ApiBulkActionPresenter();
+    const result = await presenter.list(authentication.environment.id, searchParams);
+    return json(result);
+  }
+);
+
+export { action, loader };
+
+function bulkActionFilterToRunListFilters(
+  filter: z.infer<typeof CreateBulkActionRequestBody>["filter"]
+): RunListInputFilters {
+  if (!filter) {
+    return {};
+  }
+
+  const filters: RunListInputFilters = {};
+
+  if (filter.status) {
+    filters.statuses = asArray(filter.status).flatMap((status) =>
+      ApiRunListPresenter.apiStatusToRunStatuses(status)
+    );
+  }
+
+  if (filter.taskIdentifier) filters.tasks = asArray(filter.taskIdentifier);
+  if (filter.version) filters.versions = asArray(filter.version);
+  if (filter.tag) filters.tags = asArray(filter.tag);
+  if (filter.bulkAction) filters.bulkId = filter.bulkAction;
+  if (filter.schedule) filters.scheduleId = filter.schedule;
+  if (filter.isTest !== undefined) filters.isTest = filter.isTest;
+  if (filter.from !== undefined) filters.from = dateOrNumberToMs(filter.from);
+  if (filter.to !== undefined) filters.to = dateOrNumberToMs(filter.to);
+  if (filter.period) filters.period = filter.period;
+  if (filter.batch) filters.batchId = filter.batch;
+  if (filter.queue) filters.queues = asArray(filter.queue).map(queueNameFromQueueTypeName);
+  if (filter.machine) filters.machines = asArray(filter.machine);
+  if (filter.region) filters.regions = asArray(filter.region);
+
+  return filters;
+}
+
+function asArray<T>(value: T | T[]): T[] {
+  return Array.isArray(value) ? value : [value];
+}
+
+function dateOrNumberToMs(value: Date | number): number {
+  return value instanceof Date ? value.getTime() : value;
+}
+
+function queueNameFromQueueTypeName(queue: QueueTypeName): string {
+  if (queue.type === "task") {
+    return `task/${queue.name}`;
+  }
+
+  return queue.name;
+}
diff --git a/apps/webapp/app/routes/resources.orgs.$organizationSlug.projects.$projectParam.env.$envParam.runs.bulkaction.tsx b/apps/webapp/app/routes/resources.orgs.$organizationSlug.projects.$projectParam.env.$envParam.runs.bulkaction.tsx
index 59c6da64126..5964947d816 100644
--- a/apps/webapp/app/routes/resources.orgs.$organizationSlug.projects.$projectParam.env.$envParam.runs.bulkaction.tsx
+++ b/apps/webapp/app/routes/resources.orgs.$organizationSlug.projects.$projectParam.env.$envParam.runs.bulkaction.tsx
@@ -51,6 +51,7 @@ import { redirectWithErrorMessage, redirectWithSuccessMessage } from "~/models/m
 import { resolveOrgIdFromSlug } from "~/models/organization.server";
 import { findProjectBySlug } from "~/models/project.server";
 import { findEnvironmentBySlug } from "~/models/runtimeEnvironment.server";
+import { getRunFiltersFromRequest } from "~/presenters/RunFilters.server";
 import { CreateBulkActionPresenter } from "~/presenters/v3/CreateBulkActionPresenter.server";
 import { RegionsPresenter } from "~/presenters/v3/RegionsPresenter.server";
 import { RUNS_BULK_INSPECTOR_UI_SEARCH_PARAMS } from "~/routes/_app.orgs.$organizationSlug.projects.$projectParam.env.$envParam.runs._index/shouldRevalidateRunsList";
@@ -188,14 +189,25 @@ export const action = dashboardAction(
 
     const service = new BulkActionService();
     const [error, result] = await tryCatch(
-      service.create(
-        project.organizationId,
-        project.id,
-        environment.id,
-        user.id,
-        submission.value,
-        request
-      )
+      (async () => {
+        const filters =
+          submission.value.mode === "selected"
+            ? { runId: submission.value.selectedRunIds }
+            : await getRunFiltersFromRequest(request);
+
+        return service.create({
+          organizationId: project.organizationId,
+          projectId: project.id,
+          environmentId: environment.id,
+          userId: user.id,
+          action: submission.value.action,
+          title: submission.value.title,
+          region: submission.value.region,
+          emailNotification: submission.value.emailNotification,
+          filters,
+          triggerSource: "dashboard",
+        });
+      })()
     );
 
     if (error) {
diff --git a/apps/webapp/app/v3/services/bulk/BulkActionV2.server.ts b/apps/webapp/app/v3/services/bulk/BulkActionV2.server.ts
index d03ab71796f..51859eeab4b 100644
--- a/apps/webapp/app/v3/services/bulk/BulkActionV2.server.ts
+++ b/apps/webapp/app/v3/services/bulk/BulkActionV2.server.ts
@@ -5,8 +5,6 @@ import {
   BulkActionType,
   type PrismaClient,
 } from "@trigger.dev/database";
-import { getRunFiltersFromRequest } from "~/presenters/RunFilters.server";
-import { type CreateBulkActionPayload } from "~/routes/resources.orgs.$organizationSlug.projects.$projectParam.env.$envParam.runs.bulkaction";
 import { clickhouseFactory } from "~/services/clickhouse/clickhouseFactoryInstance.server";
 import {
   parseRunListInputOptions,
@@ -14,18 +12,33 @@ import {
   RunsRepository,
 } from "~/services/runsRepository/runsRepository.server";
 import { BaseService } from "../baseService.server";
+import { ServiceValidationError } from "../common.server";
 import { commonWorker } from "~/v3/commonWorker.server";
 import { env } from "~/env.server";
 import { logger } from "@trigger.dev/sdk";
 import { CancelTaskRunService } from "../cancelTaskRun.server";
 import { tryCatch } from "@trigger.dev/core";
 import { ReplayTaskRunService } from "../replayTaskRun.server";
+import { WorkerGroupService } from "../worker/workerGroupService.server";
 import { timeFilters } from "~/components/runs/v3/SharedFilters";
 import parseDuration from "parse-duration";
 import { v3BulkActionPath } from "~/utils/pathBuilder";
 import { formatDateTime } from "~/components/primitives/DateTime";
 import pMap from "p-map";
 
+export type CreateBulkActionInput = {
+  organizationId: string;
+  projectId: string;
+  environmentId: string;
+  userId?: string | null;
+  action: "cancel" | "replay";
+  filters: RunListInputFilters;
+  title?: string;
+  region?: string;
+  emailNotification?: boolean;
+  triggerSource?: string;
+};
+
 export type ProcessToCompletionOptions = {
   /** Absolute timestamp (ms) after which processing stops and returns incomplete. */
   deadline?: number;
@@ -36,21 +49,33 @@ export type ProcessToCompletionResult = {
 };
 
 export class BulkActionService extends BaseService {
-  public async create(
-    organizationId: string,
-    projectId: string,
-    environmentId: string,
-    userId: string,
-    payload: CreateBulkActionPayload,
-    request: Request
-  ) {
-    const filters = await getFilters(payload, request);
+  public async create(input: CreateBulkActionInput) {
+    const { organizationId, projectId, environmentId, userId } = input;
+    const filters = freezeRunListFilters(input.filters);
 
     // Region is a replay-only override that re-routes the replayed runs. It's
     // stored alongside the run-list filters under a dedicated key so it isn't
     // mistaken for a `regions` selection filter when the params are parsed.
-    const replayRegion = payload.action === "replay" ? payload.region : undefined;
-    const params = replayRegion ? { ...filters, replayRegion } : filters;
+    const replayRegion = input.action === "replay" ? input.region : undefined;
+    if (replayRegion) {
+      // Validating the region override up-front so an invalid/unauthorized
+      // region surfaces as a user-input (400) error rather than a 500.
+      const [regionError] = await tryCatch(
+        new WorkerGroupService({ prisma: this._prisma }).getDefaultWorkerGroupForProject({
+          projectId,
+          regionOverride: replayRegion,
+        })
+      );
+      if (regionError) {
+        throw new ServiceValidationError(regionError.message, 400);
+      }
+    }
+
+    const params = {
+      ...filters,
+      ...(replayRegion ? { replayRegion } : {}),
+      ...(input.triggerSource ? { triggerSource: input.triggerSource } : {}),
+    };
 
     // Count the runs that will be affected by the bulk action
     const clickhouse = await clickhouseFactory.getClickhouseForOrganization(
@@ -77,13 +102,13 @@ export class BulkActionService extends BaseService {
         projectId,
         environmentId,
         userId,
-        name: payload.title,
-        type: payload.action === "cancel" ? BulkActionType.CANCEL : BulkActionType.REPLAY,
+        name: input.title,
+        type: input.action === "cancel" ? BulkActionType.CANCEL : BulkActionType.REPLAY,
         params,
         queryName: "bulk_action_v1",
         totalCount: count,
         completionNotification:
-          payload.emailNotification === true
+          input.emailNotification === true
             ? BulkActionNotificationType.EMAIL
             : BulkActionNotificationType.NONE,
       },
@@ -202,6 +227,10 @@ export class BulkActionService extends BaseService {
       "replayRegion" in rawParams && typeof (rawParams as any).replayRegion === "string"
         ? (rawParams as any).replayRegion
         : undefined;
+    const triggerSource =
+      "triggerSource" in rawParams && typeof (rawParams as any).triggerSource === "string"
+        ? (rawParams as any).triggerSource
+        : "dashboard";
     const filters = parseRunListInputOptions({
       organizationId: group.project.organizationId,
       projectId: group.projectId,
@@ -317,7 +346,7 @@ export class BulkActionService extends BaseService {
             const [error, result] = await tryCatch(
               replayService.call(run, {
                 bulkActionId: bulkActionId,
-                triggerSource: "dashboard",
+                triggerSource,
                 region: replayRegion,
               })
             );
@@ -454,15 +483,15 @@ export class BulkActionService extends BaseService {
     });
 
     if (!group) {
-      throw new Error(`Bulk action not found: ${friendlyId}`);
+      throw new ServiceValidationError(`Bulk action not found: ${friendlyId}`, 404);
     }
 
     if (group.status === BulkActionStatus.COMPLETED) {
-      throw new Error(`Bulk action group already completed: ${friendlyId}`);
+      throw new ServiceValidationError(`Bulk action group already completed: ${friendlyId}`, 409);
     }
 
     if (group.status === BulkActionStatus.ABORTED) {
-      throw new Error(`Bulk action group already aborted: ${friendlyId}`);
+      throw new ServiceValidationError(`Bulk action group already aborted: ${friendlyId}`, 409);
     }
 
     //ack the job (this doesn't guarantee it won't run again)
@@ -479,28 +508,26 @@ export class BulkActionService extends BaseService {
   }
 }
 
-async function getFilters(
-  payload: CreateBulkActionPayload,
-  request: Request
-): Promise<RunListInputFilters> {
-  if (payload.mode === "selected") {
-    return {
-      runId: payload.selectedRunIds,
-    };
+export function freezeRunListFilters(filters: RunListInputFilters): RunListInputFilters {
+  const {
+    cursor: _cursor,
+    direction: _direction,
+    ...frozenFilters
+  } = filters as RunListInputFilters & {
+    cursor?: string;
+    direction?: "forward" | "backward";
+  };
+
+  // Explicit run-id selections target specific, already-existing runs, so we
+  // don't apply a time bound (which could otherwise exclude a selected run).
+  if (frozenFilters.runId?.length) {
+    return frozenFilters;
   }
 
-  const filters = await getRunFiltersFromRequest(request);
-  filters.cursor = undefined;
-  filters.direction = undefined;
-
-  const {
-    period,
-    from: _from,
-    to: _to,
-  } = timeFilters({
-    period: filters.period,
-    from: filters.from,
-    to: filters.to,
+  const { period } = timeFilters({
+    period: frozenFilters.period,
+    from: frozenFilters.from,
+    to: frozenFilters.to,
   });
 
   // We fix the time period to a from/to date
@@ -512,18 +539,18 @@ async function getFilters(
 
     const to = new Date();
     const from = new Date(to.getTime() - periodMs);
-    filters.from = from.getTime();
-    filters.to = to.getTime();
-    filters.period = undefined;
-    return filters;
+    frozenFilters.from = from.getTime();
+    frozenFilters.to = to.getTime();
+    frozenFilters.period = undefined;
+    return frozenFilters;
   }
 
   // If no to date is set, we lock it to now
-  if (!filters.to) {
-    filters.to = Date.now();
+  if (!frozenFilters.to) {
+    frozenFilters.to = Date.now();
   }
 
-  filters.period = undefined;
+  frozenFilters.period = undefined;
 
-  return filters;
+  return frozenFilters;
 }
diff --git a/apps/webapp/test/bulk-actions-api.e2e.full.test.ts b/apps/webapp/test/bulk-actions-api.e2e.full.test.ts
new file mode 100644
index 00000000000..43be105962a
--- /dev/null
+++ b/apps/webapp/test/bulk-actions-api.e2e.full.test.ts
@@ -0,0 +1,249 @@
+import { randomBytes } from "node:crypto";
+import {
+  BulkActionStatus,
+  BulkActionType,
+  type PrismaClient,
+  type Project,
+  type RuntimeEnvironment,
+} from "@trigger.dev/database";
+import { describe, expect, it } from "vitest";
+import { getTestServer } from "./helpers/sharedTestServer";
+import { seedTestEnvironment } from "./helpers/seedTestEnvironment";
+
+describe("Bulk actions API", () => {
+  it("lists bulk actions with cursor pagination", async () => {
+    const server = getTestServer();
+    const { apiKey, project, environment } = await seedTestEnvironment(server.prisma);
+
+    const oldest = await seedBulkAction(server.prisma, project, environment, {
+      name: "Oldest",
+      createdAt: new Date("2026-07-01T10:00:00.000Z"),
+    });
+    const middle = await seedBulkAction(server.prisma, project, environment, {
+      name: "Middle",
+      createdAt: new Date("2026-07-01T10:01:00.000Z"),
+    });
+    const latest = await seedBulkAction(server.prisma, project, environment, {
+      name: "Latest",
+      createdAt: new Date("2026-07-01T10:02:00.000Z"),
+    });
+
+    const firstResponse = await server.webapp.fetch("/api/v1/bulk-actions?page[size]=2", {
+      headers: authHeaders(apiKey),
+    });
+    expect(firstResponse.status).toBe(200);
+    const firstPage = await firstResponse.json();
+    expect(firstPage.data.map((item: { id: string }) => item.id)).toEqual([
+      latest.friendlyId,
+      middle.friendlyId,
+    ]);
+    expect(firstPage.pagination.next).toEqual(expect.any(String));
+    expect(firstPage.pagination.previous).toBeUndefined();
+
+    const secondResponse = await server.webapp.fetch(
+      `/api/v1/bulk-actions?page[size]=2&page[after]=${encodeURIComponent(
+        firstPage.pagination.next
+      )}`,
+      { headers: authHeaders(apiKey) }
+    );
+    expect(secondResponse.status).toBe(200);
+    const secondPage = await secondResponse.json();
+    expect(secondPage.data.map((item: { id: string }) => item.id)).toEqual([oldest.friendlyId]);
+    expect(secondPage.pagination.next).toBeUndefined();
+    expect(secondPage.pagination.previous).toEqual(expect.any(String));
+
+    const previousResponse = await server.webapp.fetch(
+      `/api/v1/bulk-actions?page[size]=2&page[before]=${encodeURIComponent(
+        secondPage.pagination.previous
+      )}`,
+      { headers: authHeaders(apiKey) }
+    );
+    expect(previousResponse.status).toBe(200);
+    const previousPage = await previousResponse.json();
+    expect(previousPage.data.map((item: { id: string }) => item.id)).toEqual([
+      latest.friendlyId,
+      middle.friendlyId,
+    ]);
+  });
+
+  it("retrieves a bulk action in the authenticated environment", async () => {
+    const server = getTestServer();
+    const { apiKey, project, environment } = await seedTestEnvironment(server.prisma);
+    const bulkAction = await seedBulkAction(server.prisma, project, environment, {
+      name: "Retrieve me",
+      type: BulkActionType.REPLAY,
+      status: BulkActionStatus.COMPLETED,
+      totalCount: 4,
+      successCount: 3,
+      failureCount: 1,
+      completedAt: new Date("2026-07-01T10:05:00.000Z"),
+    });
+
+    const response = await server.webapp.fetch(`/api/v1/bulk-actions/${bulkAction.friendlyId}`, {
+      headers: authHeaders(apiKey),
+    });
+
+    expect(response.status).toBe(200);
+    const body = await response.json();
+    expect(body).toMatchObject({
+      id: bulkAction.friendlyId,
+      name: "Retrieve me",
+      type: "REPLAY",
+      status: "COMPLETED",
+      counts: { total: 4, success: 3, failure: 1 },
+    });
+    expect(body.createdAt).toEqual(expect.any(String));
+    expect(body.completedAt).toEqual("2026-07-01T10:05:00.000Z");
+  });
+
+  it("does not retrieve bulk actions from another environment", async () => {
+    const server = getTestServer();
+    const a = await seedTestEnvironment(server.prisma);
+    const b = await seedTestEnvironment(server.prisma);
+    const bulkAction = await seedBulkAction(server.prisma, a.project, a.environment, {
+      name: "Other environment",
+    });
+
+    const response = await server.webapp.fetch(`/api/v1/bulk-actions/${bulkAction.friendlyId}`, {
+      headers: authHeaders(b.apiKey),
+    });
+
+    expect(response.status).toBe(404);
+  });
+
+  it("aborts a pending bulk action", async () => {
+    const server = getTestServer();
+    const { apiKey, project, environment } = await seedTestEnvironment(server.prisma);
+    const bulkAction = await seedBulkAction(server.prisma, project, environment, {
+      status: BulkActionStatus.PENDING,
+    });
+
+    const response = await server.webapp.fetch(
+      `/api/v1/bulk-actions/${bulkAction.friendlyId}/abort`,
+      { method: "POST", headers: authHeaders(apiKey) }
+    );
+
+    expect(response.status).toBe(200);
+    await expect(response.json()).resolves.toEqual({ id: bulkAction.friendlyId });
+
+    const updated = await server.prisma.bulkActionGroup.findUniqueOrThrow({
+      where: { id: bulkAction.id },
+      select: { status: true },
+    });
+    expect(updated.status).toBe(BulkActionStatus.ABORTED);
+  });
+
+  it("returns a safe validation error when aborting a completed bulk action", async () => {
+    const server = getTestServer();
+    const { apiKey, project, environment } = await seedTestEnvironment(server.prisma);
+    const bulkAction = await seedBulkAction(server.prisma, project, environment, {
+      status: BulkActionStatus.COMPLETED,
+      completedAt: new Date("2026-07-01T10:05:00.000Z"),
+    });
+
+    const response = await server.webapp.fetch(
+      `/api/v1/bulk-actions/${bulkAction.friendlyId}/abort`,
+      { method: "POST", headers: authHeaders(apiKey) }
+    );
+
+    expect(response.status).toBe(409);
+    const body = await response.json();
+    expect(body.error).toEqual(expect.any(String));
+    expect(body.error).toContain(bulkAction.friendlyId);
+  });
+
+  it("rejects create requests with both filter and runIds", async () => {
+    const server = getTestServer();
+    const { apiKey } = await seedTestEnvironment(server.prisma);
+
+    const response = await server.webapp.fetch("/api/v1/bulk-actions", {
+      method: "POST",
+      headers: authHeaders(apiKey),
+      body: JSON.stringify({ action: "cancel", filter: { status: "FAILED" }, runIds: ["run_123"] }),
+    });
+
+    expect(response.status).toBe(400);
+    const body = await response.json();
+    expect(body.error).toContain("Exactly one of filter or runIds must be provided");
+  });
+
+  it("rejects create requests with an empty filter", async () => {
+    const server = getTestServer();
+    const { apiKey } = await seedTestEnvironment(server.prisma);
+
+    const response = await server.webapp.fetch("/api/v1/bulk-actions", {
+      method: "POST",
+      headers: authHeaders(apiKey),
+      body: JSON.stringify({ action: "cancel", filter: {} }),
+    });
+
+    expect(response.status).toBe(400);
+    const body = await response.json();
+    expect(body.error).toContain("At least one filter must be provided");
+  });
+
+  it("returns a generic error for unexpected create failures", async () => {
+    const server = getTestServer();
+    const { apiKey } = await seedTestEnvironment(server.prisma);
+
+    const response = await server.webapp.fetch("/api/v1/bulk-actions", {
+      method: "POST",
+      headers: authHeaders(apiKey),
+      body: JSON.stringify({
+        action: "cancel",
+        filter: { status: "FAILED" },
+        name: "No ClickHouse in this suite",
+      }),
+    });
+
+    expect(response.status).toBe(500);
+    await expect(response.json()).resolves.toEqual({ error: "Failed to create bulk action" });
+  });
+});
+
+function authHeaders(apiKey: string) {
+  return {
+    Authorization: `Bearer ${apiKey}`,
+    "Content-Type": "application/json",
+  };
+}
+
+async function seedBulkAction(
+  prisma: PrismaClient,
+  project: Pick<Project, "id">,
+  environment: Pick<RuntimeEnvironment, "id">,
+  overrides: {
+    name?: string;
+    type?: BulkActionType;
+    status?: BulkActionStatus;
+    createdAt?: Date;
+    completedAt?: Date;
+    totalCount?: number;
+    successCount?: number;
+    failureCount?: number;
+  } = {}
+) {
+  return prisma.bulkActionGroup.create({
+    data: {
+      friendlyId: `bulk_${randomHex(16)}`,
+      projectId: project.id,
+      environmentId: environment.id,
+      name: overrides.name ?? "Test bulk action",
+      type: overrides.type ?? BulkActionType.CANCEL,
+      status: overrides.status ?? BulkActionStatus.PENDING,
+      queryName: "bulk_action_v1",
+      params: {},
+      totalCount: overrides.totalCount ?? 1,
+      successCount: overrides.successCount ?? 0,
+      failureCount: overrides.failureCount ?? 0,
+      createdAt: overrides.createdAt,
+      completedAt: overrides.completedAt,
+    },
+  });
+}
+
+function randomHex(length: number) {
+  return randomBytes(Math.ceil(length / 2))
+    .toString("hex")
+    .slice(0, length);
+}
diff --git a/docs/docs.json b/docs/docs.json
index f373503049c..0cb85c81380 100644
--- a/docs/docs.json
+++ b/docs/docs.json
@@ -333,6 +333,7 @@
               "management/runs/retrieve",
               "management/runs/replay",
               "management/runs/cancel",
+              "management/runs/bulk-actions",
               "management/runs/reschedule",
               "management/runs/update-metadata",
               "management/runs/add-tags",
diff --git a/docs/management/runs/bulk-actions.mdx b/docs/management/runs/bulk-actions.mdx
new file mode 100644
index 00000000000..af9118ce8b6
--- /dev/null
+++ b/docs/management/runs/bulk-actions.mdx
@@ -0,0 +1,165 @@
+---
+title: "Bulk actions"
+description: "Cancel or replay many runs from the SDK using run IDs or the same filters as runs.list()."
+---
+
+**Bulk actions let you cancel or replay many runs asynchronously from the SDK by selecting runs with run IDs or `runs.list()` filters.**
+
+A bulk action returns a handle immediately. Use the handle to retrieve progress, poll until completion, list previous actions, or abort pending work.
+
+## Create a bulk replay
+
+Use `runs.bulk.replay()` to replay every run that matches a filter.
+
+```ts Your backend code
+import { runs } from "@trigger.dev/sdk";
+
+const action = await runs.bulk.replay({
+  filter: {
+    status: "FAILED",
+    taskIdentifier: "sync-customer",
+    period: "24h",
+  },
+  name: "Replay failed customer syncs",
+  targetRegion: "eu-central-1",
+});
+
+const completed = await runs.bulk.poll(action.id);
+console.log(completed.status, completed.counts);
+```
+
+`filter` accepts the same filters as [`runs.list()`](/management/runs/list), excluding pagination fields. Provide at least one filter field; use `runIds` when you want to target specific runs. Relative time filters such as `period` are resolved when the bulk action is created, so later batches process the same fixed time range.
+
+<ParamField body="filter" type="BulkActionFilter">
+  Selects runs using the same filter shape as `runs.list()`, excluding `limit`, `after`, and `before`.
+</ParamField>
+
+<ParamField body="runIds" type="string[]">
+  Selects specific run IDs. Provide either `filter` or `runIds`, not both.
+</ParamField>
+
+<ParamField body="name" type="string" optional>
+  A name for the bulk action.
+</ParamField>
+
+<ParamField body="targetRegion" type="string" optional>
+  Replays matching runs in a specific region. When omitted, each replay keeps the original run's region. This option is only available for `runs.bulk.replay()`.
+</ParamField>
+
+## Create a bulk cancel
+
+Use `runs.bulk.cancel()` to cancel every run that matches a filter, or specific run IDs.
+
+```ts Your backend code
+import { runs } from "@trigger.dev/sdk";
+
+const action = await runs.bulk.cancel({
+  runIds: ["run_1234", "run_5678"],
+  name: "Cancel selected runs",
+});
+
+console.log(action.id);
+```
+
+Only runs that are still cancelable when the action reaches them are canceled. Runs that have already reached a final state count as failures in the bulk action summary.
+
+## Retrieve progress
+
+Use `runs.bulk.retrieve()` to read the current status and aggregate counts.
+
+```ts Your backend code
+import { runs } from "@trigger.dev/sdk";
+
+const action = await runs.bulk.retrieve("bulk_1234");
+
+console.log(action.status);
+console.log(action.counts.total, action.counts.success, action.counts.failure);
+```
+
+The returned bulk action object has these fields:
+
+<ResponseField name="id" type="string">
+  The bulk action ID, starting with `bulk_`.
+</ResponseField>
+
+<ResponseField name="type" type="'CANCEL' | 'REPLAY'">
+  The action being performed.
+</ResponseField>
+
+<ResponseField name="status" type="'PENDING' | 'COMPLETED' | 'ABORTED'">
+  The current bulk action status.
+</ResponseField>
+
+<ResponseField name="counts" type="object">
+  Aggregate processing counts.
+
+  <Expandable title="properties">
+    <ResponseField name="total" type="number">
+      The number of runs selected when the bulk action was created.
+    </ResponseField>
+    <ResponseField name="success" type="number">
+      The number of runs processed successfully.
+    </ResponseField>
+    <ResponseField name="failure" type="number">
+      The number of runs that could not be processed.
+    </ResponseField>
+  </Expandable>
+</ResponseField>
+
+<ResponseField name="createdAt" type="Date">
+  The date and time the bulk action was created.
+</ResponseField>
+
+<ResponseField name="completedAt" type="Date" optional>
+  The date and time the bulk action completed.
+</ResponseField>
+
+## Poll for completion
+
+Use `runs.bulk.poll()` to wait until the bulk action leaves the `PENDING` state.
+
+```ts Your backend code
+import { runs } from "@trigger.dev/sdk";
+
+const completed = await runs.bulk.poll("bulk_1234", {
+  pollIntervalMs: 2_000,
+});
+
+console.log(completed.status);
+```
+
+## Abort a bulk action
+
+Use `runs.bulk.abort()` to stop future batches from being processed.
+
+```ts Your backend code
+import { runs } from "@trigger.dev/sdk";
+
+await runs.bulk.abort("bulk_1234");
+```
+
+Abort is best effort. Runs already being processed in the current batch may still finish.
+
+## List bulk actions
+
+Use `runs.bulk.list()` to page through previous bulk actions in the current environment.
+
+```ts Your backend code
+import { runs } from "@trigger.dev/sdk";
+
+const page = await runs.bulk.list({ limit: 25 });
+
+for (const action of page.data) {
+  console.log(action.id, action.status);
+}
+```
+
+List results support the same auto-pagination helpers as other management API list methods:
+
+```ts Your backend code
+import { runs } from "@trigger.dev/sdk";
+
+for await (const action of runs.bulk.list({ limit: 25 })) {
+  console.log(action.id, action.status);
+}
+```
diff --git a/packages/core/src/v3/apiClient/bulkActions.test.ts b/packages/core/src/v3/apiClient/bulkActions.test.ts
new file mode 100644
index 00000000000..dc2207aca10
--- /dev/null
+++ b/packages/core/src/v3/apiClient/bulkActions.test.ts
@@ -0,0 +1,182 @@
+import { afterEach, beforeEach, describe, expect, it } from "vitest";
+import { createServer, type IncomingMessage, type Server, type ServerResponse } from "node:http";
+import type { AddressInfo } from "node:net";
+import { ApiClient } from "./index.js";
+
+type ReceivedRequest = {
+  method: string;
+  url: string;
+  headers: IncomingMessage["headers"];
+  body: string;
+};
+
+type RequestHandler = (request: ReceivedRequest, response: ServerResponse) => void | Promise<void>;
+
+describe("ApiClient bulk actions", () => {
+  let server: Server;
+  let baseUrl: string;
+  let receivedRequests: ReceivedRequest[] = [];
+  let requestHandler: RequestHandler | undefined;
+
+  beforeEach(async () => {
+    receivedRequests = [];
+    requestHandler = undefined;
+
+    server = createServer((req, res) => {
+      const chunks: Buffer[] = [];
+      req.on("data", (chunk) => chunks.push(chunk));
+      req.on("end", async () => {
+        const received = {
+          method: req.method ?? "",
+          url: req.url ?? "",
+          headers: req.headers,
+          body: Buffer.concat(chunks).toString(),
+        } satisfies ReceivedRequest;
+        receivedRequests.push(received);
+
+        try {
+          if (requestHandler) {
+            await requestHandler(received, res);
+          } else {
+            json(res, { error: "No handler" }, 500);
+          }
+        } catch (error) {
+          json(res, { error: error instanceof Error ? error.message : String(error) }, 500);
+        }
+      });
+    });
+
+    await new Promise<void>((resolve) => {
+      server.listen(0, "127.0.0.1", () => {
+        const address = server.address() as AddressInfo;
+        baseUrl = `http://127.0.0.1:${address.port}`;
+        resolve();
+      });
+    });
+  });
+
+  afterEach(async () => {
+    await new Promise<void>((resolve) => server.close(() => resolve()));
+  });
+
+  it("posts the exact create bulk action request body", async () => {
+    requestHandler = (_request, response) => json(response, { id: "bulk_created" });
+
+    const client = new ApiClient(baseUrl, "tr_test_key");
+    const result = await client.createBulkAction({
+      action: "replay",
+      filter: { status: ["FAILED"], taskIdentifier: "my-task" },
+      name: "Replay failures",
+      targetRegion: "eu_1",
+    });
+
+    expect(result).toEqual({ id: "bulk_created" });
+    expect(receivedRequests).toHaveLength(1);
+    expect(receivedRequests[0]?.method).toBe("POST");
+    expect(receivedRequests[0]?.url).toBe("/api/v1/bulk-actions");
+    expect(receivedRequests[0]?.headers.authorization).toBe("Bearer tr_test_key");
+    expect(JSON.parse(receivedRequests[0]?.body ?? "{}")).toEqual({
+      action: "replay",
+      filter: { status: ["FAILED"], taskIdentifier: "my-task" },
+      name: "Replay failures",
+      targetRegion: "eu_1",
+    });
+  });
+
+  it("lists bulk actions with cursor pagination params and parses dates", async () => {
+    const createdAt = "2026-07-01T10:00:00.000Z";
+    const completedAt = "2026-07-01T10:05:00.000Z";
+    requestHandler = (_request, response) =>
+      json(response, {
+        data: [
+          {
+            id: "bulk_listed",
+            name: "Cancel queued runs",
+            type: "CANCEL",
+            status: "COMPLETED",
+            counts: { total: 3, success: 2, failure: 1 },
+            createdAt,
+            completedAt,
+          },
+        ],
+        pagination: { next: "cursor_next", previous: "cursor_previous" },
+      });
+
+    const client = new ApiClient(baseUrl, "tr_test_key");
+    const page = await client.listBulkActions({ limit: 2, after: "cursor_after" });
+
+    expect(receivedRequests[0]?.method).toBe("GET");
+    const url = new URL(receivedRequests[0]?.url ?? "", baseUrl);
+    expect(url.pathname).toBe("/api/v1/bulk-actions");
+    expect(url.searchParams.get("page[size]")).toBe("2");
+    expect(url.searchParams.get("page[after]")).toBe("cursor_after");
+    expect(page.pagination).toEqual({ next: "cursor_next", previous: "cursor_previous" });
+    expect(page.data[0]?.createdAt).toEqual(new Date(createdAt));
+    expect(page.data[0]?.completedAt).toEqual(new Date(completedAt));
+  });
+
+  it("auto-paginates bulk action lists", async () => {
+    requestHandler = (request, response) => {
+      const url = new URL(request.url, baseUrl);
+      if (!url.searchParams.has("page[after]")) {
+        return json(response, {
+          data: [bulkActionObject("bulk_first")],
+          pagination: { next: "cursor_next" },
+        });
+      }
+
+      expect(url.searchParams.get("page[after]")).toBe("cursor_next");
+      return json(response, {
+        data: [bulkActionObject("bulk_second")],
+        pagination: {},
+      });
+    };
+
+    const client = new ApiClient(baseUrl, "tr_test_key");
+    const ids: string[] = [];
+
+    for await (const bulkAction of client.listBulkActions({ limit: 1 })) {
+      ids.push(bulkAction.id);
+    }
+
+    expect(ids).toEqual(["bulk_first", "bulk_second"]);
+    expect(receivedRequests).toHaveLength(2);
+  });
+
+  it("retrieves a bulk action by id", async () => {
+    requestHandler = (_request, response) => json(response, bulkActionObject("bulk_retrieve"));
+
+    const client = new ApiClient(baseUrl, "tr_test_key");
+    const bulkAction = await client.retrieveBulkAction("bulk_retrieve");
+
+    expect(receivedRequests[0]?.method).toBe("GET");
+    expect(receivedRequests[0]?.url).toBe("/api/v1/bulk-actions/bulk_retrieve");
+    expect(bulkAction.id).toBe("bulk_retrieve");
+  });
+
+  it("aborts a bulk action by id", async () => {
+    requestHandler = (_request, response) => json(response, { id: "bulk_abort" });
+
+    const client = new ApiClient(baseUrl, "tr_test_key");
+    const result = await client.abortBulkAction("bulk_abort");
+
+    expect(receivedRequests[0]?.method).toBe("POST");
+    expect(receivedRequests[0]?.url).toBe("/api/v1/bulk-actions/bulk_abort/abort");
+    expect(result).toEqual({ id: "bulk_abort" });
+  });
+});
+
+function json(response: ServerResponse, body: unknown, status = 200) {
+  response.writeHead(status, { "content-type": "application/json" });
+  response.end(JSON.stringify(body));
+}
+
+function bulkActionObject(id: string) {
+  return {
+    id,
+    type: "REPLAY",
+    status: "PENDING",
+    counts: { total: 1, success: 0, failure: 0 },
+    createdAt: "2026-07-01T10:00:00.000Z",
+  };
+}
diff --git a/packages/core/src/v3/apiClient/index.ts b/packages/core/src/v3/apiClient/index.ts
index 3cdc78e1b31..deda5d01f9a 100644
--- a/packages/core/src/v3/apiClient/index.ts
+++ b/packages/core/src/v3/apiClient/index.ts
@@ -36,7 +36,10 @@ import {
   type UpdateScheduleOptions,
   type UpdateSessionRequestBody,
   type WaitForDurationRequestBody,
+  AbortBulkActionResponseBody,
   ApiDeploymentListResponseItem,
+  BulkActionObject,
+  CreateBulkActionResponseBody,
   AppendToStreamResponseBody,
   BatchTaskRunExecutionResult,
   BatchTriggerTaskV3Response,
@@ -118,8 +121,10 @@ import {
   type SSEStreamPart,
 } from "./runStream.js";
 import type {
+  CreateBulkActionOptions,
   CreateEnvironmentVariableParams,
   ImportEnvironmentVariablesParams,
+  ListBulkActionsQueryParams,
   ListProjectRunsQueryParams,
   ListRunsQueryParams,
   ListWaitpointTokensQueryParams,
@@ -141,9 +146,11 @@ export type CreateBatchApiResponse = Prettify<
 >;
 
 export type {
+  CreateBulkActionOptions,
   CreateEnvironmentVariableParams,
   ImportEnvironmentVariablesParams,
   RealtimeRunSkipColumns,
+  ListBulkActionsQueryParams,
   SubscribeToRunsQueryParams,
   UpdateEnvironmentVariableParams,
 };
@@ -738,6 +745,64 @@ export class ApiClient {
     );
   }
 
+  createBulkAction(options: CreateBulkActionOptions, requestOptions?: ZodFetchOptions) {
+    return zodfetch(
+      CreateBulkActionResponseBody,
+      `${this.baseUrl}/api/v1/bulk-actions`,
+      {
+        method: "POST",
+        headers: this.#getHeaders(false),
+        body: JSON.stringify(options),
+      },
+      mergeRequestOptions(this.defaultRequestOptions, requestOptions)
+    );
+  }
+
+  listBulkActions(
+    query?: ListBulkActionsQueryParams,
+    requestOptions?: ZodFetchOptions
+  ): CursorPagePromise<typeof BulkActionObject> {
+    return zodfetchCursorPage(
+      BulkActionObject,
+      `${this.baseUrl}/api/v1/bulk-actions`,
+      {
+        query: new URLSearchParams(),
+        limit: query?.limit,
+        after: query?.after,
+        before: query?.before,
+      },
+      {
+        method: "GET",
+        headers: this.#getHeaders(false),
+      },
+      mergeRequestOptions(this.defaultRequestOptions, requestOptions)
+    );
+  }
+
+  retrieveBulkAction(bulkActionId: string, requestOptions?: ZodFetchOptions) {
+    return zodfetch(
+      BulkActionObject,
+      `${this.baseUrl}/api/v1/bulk-actions/${bulkActionId}`,
+      {
+        method: "GET",
+        headers: this.#getHeaders(false),
+      },
+      mergeRequestOptions(this.defaultRequestOptions, requestOptions)
+    );
+  }
+
+  abortBulkAction(bulkActionId: string, requestOptions?: ZodFetchOptions) {
+    return zodfetch(
+      AbortBulkActionResponseBody,
+      `${this.baseUrl}/api/v1/bulk-actions/${bulkActionId}/abort`,
+      {
+        method: "POST",
+        headers: this.#getHeaders(false),
+      },
+      mergeRequestOptions(this.defaultRequestOptions, requestOptions)
+    );
+  }
+
   resetIdempotencyKey(
     taskIdentifier: string,
     idempotencyKey: string,
diff --git a/packages/core/src/v3/apiClient/types.ts b/packages/core/src/v3/apiClient/types.ts
index d3ee6427032..0684118ff28 100644
--- a/packages/core/src/v3/apiClient/types.ts
+++ b/packages/core/src/v3/apiClient/types.ts
@@ -70,6 +70,42 @@ export interface ListProjectRunsQueryParams extends CursorPageParams, ListRunsQu
   env?: Array<"dev" | "staging" | "prod"> | "dev" | "staging" | "prod";
 }
 
+type RequireAtLeastOne<T, Keys extends keyof T = keyof T> = T &
+  {
+    [K in Keys]-?: Required<Pick<T, K>>;
+  }[Keys];
+
+/** Same filters as runs.list(), excluding pagination. */
+export type BulkActionFilter = RequireAtLeastOne<Omit<ListRunsQueryParams, keyof CursorPageParams>>;
+
+export type BulkActionSelection =
+  | { filter: BulkActionFilter; runIds?: never }
+  | { runIds: string[]; filter?: never };
+
+type BaseBulkActionOptions = BulkActionSelection & {
+  name?: string;
+};
+
+type TargetRegionOption = {
+  /** Region identifier to replay runs in. When omitted, each replay keeps the original run's region. */
+  targetRegion?: string;
+};
+
+export type CreateBulkActionOptions =
+  | (BaseBulkActionOptions & {
+      action: "cancel";
+      targetRegion?: never;
+    })
+  | (BaseBulkActionOptions & { action: "replay" } & TargetRegionOption);
+
+export type CreateBulkCancelActionOptions = BaseBulkActionOptions & {
+  targetRegion?: never;
+};
+
+export type CreateBulkReplayActionOptions = BaseBulkActionOptions & TargetRegionOption;
+
+export type ListBulkActionsQueryParams = CursorPageParams;
+
 export interface SubscribeToRunsQueryParams {
   tasks?: Array<string> | string;
   tags?: Array<string> | string;
diff --git a/packages/core/src/v3/schemas/api.ts b/packages/core/src/v3/schemas/api.ts
index e9b5b03cc64..528d899ea58 100644
--- a/packages/core/src/v3/schemas/api.ts
+++ b/packages/core/src/v3/schemas/api.ts
@@ -9,6 +9,7 @@ import {
 } from "./common.js";
 import { BackgroundWorkerMetadata } from "./resources.js";
 import { DequeuedMessage, MachineResources } from "./runEngine.js";
+import { QueueTypeName } from "./queues.js";
 
 export const RunEngineVersion = z.union([z.literal("V1"), z.literal("V2")]);
 
@@ -1223,6 +1224,118 @@ export const ListRunResponse = z.object({
 
 export type ListRunResponse = z.infer<typeof ListRunResponse>;
 
+const StringOrStringArray = z.union([z.string(), z.array(z.string())]);
+const MachineOrMachineArray = z.union([MachinePresetName, z.array(MachinePresetName)]);
+const QueueOrQueueArray = z.union([QueueTypeName, z.array(QueueTypeName)]);
+const DateOrNumber = z.union([z.coerce.date(), z.number()]);
+
+const BulkActionFilterRequestBody = z
+  .object({
+    status: z.union([RunStatus, z.array(RunStatus)]).optional(),
+    taskIdentifier: StringOrStringArray.optional(),
+    version: StringOrStringArray.optional(),
+    from: DateOrNumber.optional(),
+    to: DateOrNumber.optional(),
+    period: z.string().optional(),
+    bulkAction: z.string().optional(),
+    tag: StringOrStringArray.optional(),
+    schedule: z.string().optional(),
+    isTest: z.boolean().optional(),
+    batch: z.string().optional(),
+    queue: QueueOrQueueArray.optional(),
+    machine: MachineOrMachineArray.optional(),
+    region: StringOrStringArray.optional(),
+  })
+  .refine((filter) => Object.values(filter).some(isNonEmptyBulkActionFilterValue), {
+    message: "At least one filter must be provided",
+  });
+
+/** Recursively checks for at least one non-undefined, non-empty value. */
+function isNonEmptyBulkActionFilterValue(value: unknown): boolean {
+  if (value === undefined) {
+    return false;
+  }
+
+  if (Array.isArray(value)) {
+    return value.some(isNonEmptyBulkActionFilterValue);
+  }
+
+  if (typeof value === "string") {
+    return value.trim().length > 0;
+  }
+
+  return true;
+}
+
+const BulkActionSelectionRequestBody = {
+  filter: BulkActionFilterRequestBody.optional(),
+  runIds: z.array(z.string()).min(1).optional(),
+  name: z.string().optional(),
+};
+
+export const CreateBulkActionRequestBody = z
+  .discriminatedUnion("action", [
+    z.object({
+      action: z.literal("cancel"),
+      targetRegion: z.never().optional(),
+      ...BulkActionSelectionRequestBody,
+    }),
+    z.object({
+      action: z.literal("replay"),
+      targetRegion: z.string().optional(),
+      ...BulkActionSelectionRequestBody,
+    }),
+  ])
+  .refine((body) => (body.filter ? 1 : 0) + (body.runIds ? 1 : 0) === 1, {
+    message: "Exactly one of filter or runIds must be provided",
+  });
+
+export type CreateBulkActionRequestBody = z.infer<typeof CreateBulkActionRequestBody>;
+
+export const BulkActionStatus = z.enum(["PENDING", "COMPLETED", "ABORTED"]);
+export type BulkActionStatus = z.infer<typeof BulkActionStatus>;
+
+export const BulkActionType = z.enum(["CANCEL", "REPLAY"]);
+export type BulkActionType = z.infer<typeof BulkActionType>;
+
+export const BulkActionObject = z.object({
+  id: z.string(),
+  name: z.string().optional(),
+  type: BulkActionType,
+  status: BulkActionStatus,
+  counts: z.object({
+    total: z.number(),
+    success: z.number(),
+    failure: z.number(),
+  }),
+  createdAt: z.coerce.date(),
+  completedAt: z.coerce.date().optional(),
+});
+
+export type BulkActionObject = z.infer<typeof BulkActionObject>;
+
+export const CreateBulkActionResponseBody = z.object({
+  id: z.string(),
+});
+
+export type CreateBulkActionResponseBody = z.infer<typeof CreateBulkActionResponseBody>;
+
+export const AbortBulkActionResponseBody = z.object({
+  id: z.string(),
+});
+
+export type AbortBulkActionResponseBody = z.infer<typeof AbortBulkActionResponseBody>;
+
+export const ListBulkActionsResponseBody = z.object({
+  data: z.array(BulkActionObject),
+  pagination: z.object({
+    next: z.string().optional(),
+    previous: z.string().optional(),
+  }),
+});
+
+export type ListBulkActionsResponseBody = z.infer<typeof ListBulkActionsResponseBody>;
+
 export const CreateEnvironmentVariableRequestBody = z.object({
   name: z.string(),
   value: z.string(),
diff --git a/packages/trigger-sdk/src/v3/index.ts b/packages/trigger-sdk/src/v3/index.ts
index f993105f0bd..4bdb582d7ae 100644
--- a/packages/trigger-sdk/src/v3/index.ts
+++ b/packages/trigger-sdk/src/v3/index.ts
@@ -55,6 +55,7 @@ export {
   type AnyRealtimeRun,
   type RetrieveRunResult,
   type AnyRetrieveRunResult,
+  type BulkAction,
 } from "./runs.js";
 export * as schedules from "./schedules/index.js";
 export {
diff --git a/packages/trigger-sdk/src/v3/runs-bulk.test.ts b/packages/trigger-sdk/src/v3/runs-bulk.test.ts
new file mode 100644
index 00000000000..c31743eddc3
--- /dev/null
+++ b/packages/trigger-sdk/src/v3/runs-bulk.test.ts
@@ -0,0 +1,181 @@
+import { afterEach, beforeEach, describe, expect, it } from "vitest";
+import { createServer, type IncomingMessage, type Server, type ServerResponse } from "node:http";
+import type { AddressInfo } from "node:net";
+import { apiClientManager } from "@trigger.dev/core/v3";
+import { runs } from "./runs.js";
+
+type ReceivedRequest = {
+  method: string;
+  url: string;
+  headers: IncomingMessage["headers"];
+  body: string;
+};
+
+type RequestHandler = (request: ReceivedRequest, response: ServerResponse) => void | Promise<void>;
+
+describe("runs.bulk", () => {
+  let server: Server;
+  let baseUrl: string;
+  let receivedRequests: ReceivedRequest[] = [];
+  let requestHandler: RequestHandler | undefined;
+
+  beforeEach(async () => {
+    receivedRequests = [];
+    requestHandler = undefined;
+
+    server = createServer((req, res) => {
+      const chunks: Buffer[] = [];
+      req.on("data", (chunk) => chunks.push(chunk));
+      req.on("end", async () => {
+        const received = {
+          method: req.method ?? "",
+          url: req.url ?? "",
+          headers: req.headers,
+          body: Buffer.concat(chunks).toString(),
+        } satisfies ReceivedRequest;
+        receivedRequests.push(received);
+
+        try {
+          if (requestHandler) {
+            await requestHandler(received, res);
+          } else {
+            json(res, { error: "No handler" }, 500);
+          }
+        } catch (error) {
+          json(res, { error: error instanceof Error ? error.message : String(error) }, 500);
+        }
+      });
+    });
+
+    await new Promise<void>((resolve) => {
+      server.listen(0, "127.0.0.1", () => {
+        const address = server.address() as AddressInfo;
+        baseUrl = `http://127.0.0.1:${address.port}`;
+        resolve();
+      });
+    });
+  });
+
+  afterEach(async () => {
+    apiClientManager.disable();
+    await new Promise<void>((resolve) => server.close(() => resolve()));
+  });
+
+  it("creates a cancel bulk action", async () => {
+    requestHandler = (_request, response) => json(response, { id: "bulk_cancel" });
+
+    const result = await withApiClient(() =>
+      runs.bulk.cancel({ runIds: ["run_1", "run_2"], name: "Cancel selected" })
+    );
+
+    expect(result).toEqual({ id: "bulk_cancel" });
+    expect(receivedRequests[0]?.method).toBe("POST");
+    expect(receivedRequests[0]?.url).toBe("/api/v1/bulk-actions");
+    expect(JSON.parse(receivedRequests[0]?.body ?? "{}")).toEqual({
+      action: "cancel",
+      runIds: ["run_1", "run_2"],
+      name: "Cancel selected",
+    });
+  });
+
+  it("creates a replay bulk action", async () => {
+    requestHandler = (_request, response) => json(response, { id: "bulk_replay" });
+
+    const result = await withApiClient(() =>
+      runs.bulk.replay({
+        filter: { status: "FAILED", taskIdentifier: ["task-a", "task-b"] },
+        name: "Replay failed tasks",
+        targetRegion: "eu_1",
+      })
+    );
+
+    expect(result).toEqual({ id: "bulk_replay" });
+    expect(receivedRequests[0]?.method).toBe("POST");
+    expect(receivedRequests[0]?.url).toBe("/api/v1/bulk-actions");
+    expect(JSON.parse(receivedRequests[0]?.body ?? "{}")).toEqual({
+      action: "replay",
+      filter: { status: "FAILED", taskIdentifier: ["task-a", "task-b"] },
+      name: "Replay failed tasks",
+      targetRegion: "eu_1",
+    });
+  });
+
+  it("retrieves and aborts bulk actions", async () => {
+    requestHandler = (request, response) => {
+      if (request.method === "GET") {
+        return json(response, bulkActionObject("bulk_read", "PENDING"));
+      }
+
+      return json(response, { id: "bulk_read" });
+    };
+
+    const retrieved = await withApiClient(() => runs.bulk.retrieve("bulk_read"));
+    const aborted = await withApiClient(() => runs.bulk.abort("bulk_read"));
+
+    expect(retrieved.id).toBe("bulk_read");
+    expect(retrieved.createdAt).toEqual(new Date("2026-07-01T10:00:00.000Z"));
+    expect(aborted).toEqual({ id: "bulk_read" });
+    expect(receivedRequests.map((request) => `${request.method} ${request.url}`)).toEqual([
+      "GET /api/v1/bulk-actions/bulk_read",
+      "POST /api/v1/bulk-actions/bulk_read/abort",
+    ]);
+  });
+
+  it("lists bulk actions", async () => {
+    requestHandler = (_request, response) =>
+      json(response, {
+        data: [bulkActionObject("bulk_listed", "COMPLETED")],
+        pagination: { next: "cursor_next" },
+      });
+
+    const page = await withApiClient(() => runs.bulk.list({ limit: 1, before: "cursor_before" }));
+
+    const url = new URL(receivedRequests[0]?.url ?? "", baseUrl);
+    expect(receivedRequests[0]?.method).toBe("GET");
+    expect(url.pathname).toBe("/api/v1/bulk-actions");
+    expect(url.searchParams.get("page[size]")).toBe("1");
+    expect(url.searchParams.get("page[before]")).toBe("cursor_before");
+    expect(page.data[0]?.id).toBe("bulk_listed");
+    expect(page.pagination.next).toBe("cursor_next");
+  });
+
+  it("polls until the bulk action finishes", async () => {
+    requestHandler = (_request, response) => {
+      const status = receivedRequests.length === 1 ? "PENDING" : "COMPLETED";
+      return json(response, bulkActionObject("bulk_poll", status));
+    };
+
+    const bulkAction = await withApiClient(() =>
+      runs.bulk.poll("bulk_poll", { pollIntervalMs: 1 })
+    );
+
+    expect(bulkAction.status).toBe("COMPLETED");
+    expect(receivedRequests.map((request) => request.url)).toEqual([
+      "/api/v1/bulk-actions/bulk_poll",
+      "/api/v1/bulk-actions/bulk_poll",
+    ]);
+  });
+
+  function withApiClient<T>(fn: () => Promise<T>) {
+    return apiClientManager.runWithConfig(
+      { baseURL: baseUrl, accessToken: "tr_test_key" },
+      async () => fn()
+    );
+  }
+});
+
+function json(response: ServerResponse, body: unknown, status = 200) {
+  response.writeHead(status, { "content-type": "application/json" });
+  response.end(JSON.stringify(body));
+}
+
+function bulkActionObject(id: string, status: "PENDING" | "COMPLETED" | "ABORTED") {
+  return {
+    id,
+    type: "REPLAY",
+    status,
+    counts: { total: 2, success: status === "COMPLETED" ? 2 : 0, failure: 0 },
+    createdAt: "2026-07-01T10:00:00.000Z",
+    completedAt: status === "COMPLETED" ? "2026-07-01T10:05:00.000Z" : undefined,
+  };
+}
diff --git a/packages/trigger-sdk/src/v3/runs.ts b/packages/trigger-sdk/src/v3/runs.ts
index 1ac9582df20..3bd2a9ea7f8 100644
--- a/packages/trigger-sdk/src/v3/runs.ts
+++ b/packages/trigger-sdk/src/v3/runs.ts
@@ -2,7 +2,10 @@ import type {
   AnyRetrieveRunResult,
   AnyRunShape,
   ApiRequestOptions,
+  CreateBulkCancelActionOptions,
+  CreateBulkReplayActionOptions,
   InferRunTypes,
+  ListBulkActionsQueryParams,
   ListProjectRunsQueryParams,
   ListRunsQueryParams,
   RescheduleRunRequestBody,
@@ -16,7 +19,10 @@ import type {
   AsyncIterableStream,
   ApiPromise,
   RealtimeRunSkipColumns,
+  AbortBulkActionResponseBody,
+  BulkActionObject,
   CanceledRunResponse,
+  CreateBulkActionResponseBody,
   CursorPagePromise,
   ListRunResponseItem,
   ReplayRunResponse,
@@ -49,6 +55,14 @@ export const runs = {
   retrieve: retrieveRun,
   list: listRuns,
   reschedule: rescheduleRun,
+  bulk: {
+    cancel: bulkCancelRuns,
+    replay: bulkReplayRuns,
+    retrieve: retrieveBulkAction,
+    abort: abortBulkAction,
+    list: listBulkActions,
+    poll: pollBulkAction,
+  },
   poll,
   subscribeToRun,
   subscribeToRunsWithTag,
@@ -57,6 +71,7 @@ export const runs = {
 };
 
 export type ListRunsItem = ListRunResponseItem;
+export type BulkAction = BulkActionObject;
 
 function listRuns(
   projectRef: string,
@@ -278,6 +293,139 @@ function cancelRun(
   return apiClient.cancelRun(runId, $requestOptions);
 }
 
+function bulkCancelRuns(
+  options: CreateBulkCancelActionOptions,
+  requestOptions?: ApiRequestOptions
+): ApiPromise<CreateBulkActionResponseBody> {
+  const apiClient = apiClientManager.clientOrThrow();
+
+  const $requestOptions = mergeRequestOptions(
+    {
+      tracer,
+      name: "runs.bulk.cancel()",
+      icon: "runs",
+      attributes: {
+        ...flattenAttributes(options as Record<string, unknown>, "bulkAction"),
+      },
+    },
+    requestOptions
+  );
+
+  return apiClient.createBulkAction({ ...options, action: "cancel" }, $requestOptions);
+}
+
+function bulkReplayRuns(
+  options: CreateBulkReplayActionOptions,
+  requestOptions?: ApiRequestOptions
+): ApiPromise<CreateBulkActionResponseBody> {
+  const apiClient = apiClientManager.clientOrThrow();
+
+  const $requestOptions = mergeRequestOptions(
+    {
+      tracer,
+      name: "runs.bulk.replay()",
+      icon: "runs",
+      attributes: {
+        ...flattenAttributes(options as Record<string, unknown>, "bulkAction"),
+      },
+    },
+    requestOptions
+  );
+
+  return apiClient.createBulkAction({ ...options, action: "replay" }, $requestOptions);
+}
+
+function retrieveBulkAction(
+  bulkActionId: string,
+  requestOptions?: ApiRequestOptions
+): ApiPromise<BulkActionObject> {
+  const apiClient = apiClientManager.clientOrThrow();
+
+  const $requestOptions = mergeRequestOptions(
+    {
+      tracer,
+      name: "runs.bulk.retrieve()",
+      icon: "runs",
+      attributes: {
+        bulkActionId,
+        ...accessoryAttributes({
+          items: [{ text: bulkActionId, variant: "normal" }],
+          style: "codepath",
+        }),
+      },
+    },
+    requestOptions
+  );
+
+  return apiClient.retrieveBulkAction(bulkActionId, $requestOptions);
+}
+
+function abortBulkAction(
+  bulkActionId: string,
+  requestOptions?: ApiRequestOptions
+): ApiPromise<AbortBulkActionResponseBody> {
+  const apiClient = apiClientManager.clientOrThrow();
+
+  const $requestOptions = mergeRequestOptions(
+    {
+      tracer,
+      name: "runs.bulk.abort()",
+      icon: "runs",
+      attributes: {
+        bulkActionId,
+        ...accessoryAttributes({
+          items: [{ text: bulkActionId, variant: "normal" }],
+          style: "codepath",
+        }),
+      },
+    },
+    requestOptions
+  );
+
+  return apiClient.abortBulkAction(bulkActionId, $requestOptions);
+}
+
+function listBulkActions(
+  params?: ListBulkActionsQueryParams,
+  requestOptions?: ApiRequestOptions
+): CursorPagePromise<typeof BulkActionObject> {
+  const apiClient = apiClientManager.clientOrThrow();
+
+  const $requestOptions = mergeRequestOptions(
+    {
+      tracer,
+      name: "runs.bulk.list()",
+      icon: "runs",
+      attributes: {
+        ...flattenAttributes(params as Record<string, unknown>, "queryParams"),
+      },
+    },
+    requestOptions
+  );
+
+  return apiClient.listBulkActions(params, $requestOptions);
+}
+
+async function pollBulkAction(
+  bulkActionId: string,
+  options?: { pollIntervalMs?: number },
+  requestOptions?: ApiRequestOptions
+): Promise<BulkActionObject> {
+  let attempts = 0;
+
+  while (attempts++ < MAX_POLL_ATTEMPTS) {
+    const bulkAction = await retrieveBulkAction(bulkActionId, requestOptions);
+
+    if (bulkAction.status !== "PENDING") {
+      return bulkAction;
+    }
+
+    await new Promise((resolve) => setTimeout(resolve, options?.pollIntervalMs ?? 1000));
+  }
+
+  throw new Error(`Bulk action ${bulkActionId} did not finish after ${MAX_POLL_ATTEMPTS} attempts`);
+}
+
 function rescheduleRun(
   runId: string,
   body: RescheduleRunRequestBody,