diff --git a/apps/docs/docs/management/mcp.mdx b/apps/docs/docs/management/mcp.mdx
index d4581abf8..3dbd3704e 100644
--- a/apps/docs/docs/management/mcp.mdx
+++ b/apps/docs/docs/management/mcp.mdx
@@ -70,6 +70,37 @@ through MCP.
 The built-in [Assistant](./assistant) uses the same tool catalog with the current Homarr session and asks for approval
 before mutations by default.
 
+## Authenticated integration requests
+
+`integration_request` calls API endpoints without a dedicated tool, using stored integration credentials.
+Get `integrationId` from `integration_all`. Every method requires **full integration access**: arbitrary GET
+endpoints can expose credentials or change state. DELETE additionally requires `confirmed: true` after user confirmation.
+
+Ask your agent to consult the service's official API docs with its browsing tools, or provide the endpoint contract.
+For example, using the [Sonarr API docs](https://sonarr.tv/docs/api/#v3):
+
+```json
+{ "integrationId": "<Sonarr ID>", "method": "GET", "path": "/api/v3/series" }
+```
+
+Deleting series 42 **and its episode files**, after confirmation:
+
+```json
+{ "integrationId": "<Sonarr ID>", "method": "DELETE", "path": "/api/v3/series/42?deleteFiles=true", "confirmed": true }
+```
+
+Supports GET, POST, PUT, PATCH and DELETE with an optional JSON `body` (10 KiB maximum; not allowed for GET).
+Returns `{status, data}` with parsed JSON, text, or `null` for an empty body, including upstream error responses.
+Known credentials are redacted. Requests have a 15-second total deadline, a 10-second per-request timeout and a
+1 MiB response limit. HTTPS uses Homarr's trusted certificates and hostname exceptions.
+
+Paths follow `new URL(path, integration.url)`: `/api/...` starts at the origin root; `api/...` resolves relative to
+the configured URL's directory. Absolute URLs, protocol-relative paths, credentials, fragments and redirects are rejected.
+
+Supported integrations: Sonarr, Radarr, Lidarr, Readarr, Prowlarr, Overseerr, Jellyseerr, Seerr, Immich, slskd,
+Home Assistant, Coolify, Audiobookshelf, Speedtest Tracker, AdGuard Home and Nextcloud. Other authentication schemes
+are rejected. The built-in Assistant's default mutation approval applies to this tool, including GET calls.
+
 ## Verify the connection
 
 This request lists tools through the older-client compatibility path. It checks authentication and tool discovery:
diff --git a/packages/api/src/router/integration/integration-request.ts b/packages/api/src/router/integration/integration-request.ts
new file mode 100644
index 000000000..161a1419c
--- /dev/null
+++ b/packages/api/src/router/integration/integration-request.ts
@@ -0,0 +1,204 @@
+import { Buffer } from "node:buffer";
+import { TRPCError } from "@trpc/server";
+import { z } from "zod/v4";
+
+import { constructIntegrationPermissions } from "@homarr/auth/shared";
+import { decryptSecret } from "@homarr/common/server";
+import {
+  getAllTrustedCertificatesAsync,
+  getTrustedCertificateHostnamesAsync,
+} from "@homarr/core/infrastructure/certificates";
+import { createCustomCheckServerIdentity } from "@homarr/core/infrastructure/http";
+import { CustomWidgetDomainError, executeCustomWidgetRequest } from "@homarr/custom-widgets/server";
+import type { CustomWidgetAuthConfig, CustomWidgetHttpRequest } from "@homarr/custom-widgets/server";
+import { eq, inArray } from "@homarr/db";
+import { groupMembers, integrations, integrationGroupPermissions, integrationUserPermissions } from "@homarr/db/schema";
+import type { IntegrationKind } from "@homarr/definitions";
+
+import { protectedProcedure } from "../../trpc";
+
+export const integrationRequestSchema = z.object({
+  integrationId: z.string().min(1).max(128),
+  method: z.enum(["GET", "POST", "PUT", "PATCH", "DELETE"]),
+  path: z.string().min(1).max(8192),
+  body: z.json().optional(),
+  confirmed: z
+    .boolean()
+    .optional()
+    .describe("Required for DELETE after the user confirms the deletion and its effects"),
+});
+
+export function resolveIntegrationRequestUrl(baseUrl: string, path: string): URL {
+  // Reject parser normalization tricks as well as ordinary absolute URLs.
+  // eslint-disable-next-line no-control-regex -- Reject URL parser control-character normalization.
+  if (/^[a-z][a-z\d+.-]*:/i.test(path) || path.startsWith("//") || /[\\\s\u0000-\u001f\u007f]/u.test(path)) {
+    throw new TRPCError({ code: "BAD_REQUEST", message: "path must be a relative URL on the integration origin" });
+  }
+  try {
+    const base = new URL(baseUrl);
+    const target = new URL(path, base);
+    if (
+      !["http:", "https:"].includes(base.protocol) ||
+      base.username ||
+      base.password ||
+      target.origin !== base.origin ||
+      target.username ||
+      target.password ||
+      target.hash
+    )
+      throw new Error();
+    return target;
+  } catch {
+    throw new TRPCError({
+      code: "BAD_REQUEST",
+      message: "path must resolve to the integration origin without credentials or a fragment",
+    });
+  }
+}
+
+// Match the existing adapters; never guess authentication from secret names alone.
+const requestAuth = {
+  sonarr: "apiKeyHeader",
+  radarr: "apiKeyHeader",
+  lidarr: "apiKeyHeader",
+  readarr: "apiKeyHeader",
+  prowlarr: "apiKeyHeader",
+  overseerr: "apiKeyHeader",
+  jellyseerr: "apiKeyHeader",
+  seerr: "apiKeyHeader",
+  immich: "apiKeyHeader",
+  slskd: "apiKeyHeader",
+  homeAssistant: "bearer",
+  coolify: "bearer",
+  audiobookshelf: "bearer",
+  speedtestTracker: "bearer",
+  adGuardHome: "basic",
+  nextcloud: "basic",
+} satisfies Partial<Record<IntegrationKind, string>>;
+
+export function resolveIntegrationRequestAuth(
+  kind: IntegrationKind,
+  secrets: CustomWidgetAuthConfig["secrets"],
+): CustomWidgetAuthConfig {
+  if (!(kind in requestAuth)) {
+    throw new TRPCError({
+      code: "BAD_REQUEST",
+      message: "This integration's authentication is not supported by integration_request",
+    });
+  }
+  const type = requestAuth[kind as keyof typeof requestAuth];
+  let required = ["apiKey"];
+  if (type === "basic") required = ["username", "password"];
+  if (required.some((key) => !secrets.some((secret) => secret.kind === key && secret.value))) {
+    throw new TRPCError({ code: "PRECONDITION_FAILED", message: "Integration credentials are incomplete" });
+  }
+  return { type, secrets };
+}
+
+export function redactIntegrationResponse(data: unknown, secrets: CustomWidgetAuthConfig["secrets"]): unknown {
+  const values = secrets.map(({ value }) => value).filter(Boolean);
+  const username = secrets.find(({ kind }) => kind === "username")?.value;
+  const password = secrets.find(({ kind }) => kind === "password")?.value;
+  if (username && password) values.push(`${username}:${password}`);
+  const sensitive = [
+    ...new Set(
+      values.flatMap((value) => [
+        value,
+        JSON.stringify(value).slice(1, -1),
+        encodeURIComponent(value),
+        Buffer.from(value).toString("base64"),
+      ]),
+    ),
+  ].toSorted((a, b) => b.length - a.length);
+  const redact = (value: string) => {
+    for (const secret of sensitive) value = value.replaceAll(secret, "[REDACTED]");
+    return value;
+  };
+  const visit = (value: unknown): unknown => {
+    if (typeof value === "string") return redact(value);
+    if (
+      (typeof value === "number" || typeof value === "boolean" || value === null) &&
+      redact(String(value)) !== String(value)
+    )
+      return "[REDACTED]";
+    if (Array.isArray(value)) return value.map(visit);
+    if (value !== null && typeof value === "object") {
+      return Object.fromEntries(Object.entries(value).map(([key, child]) => [redact(key), visit(child)]));
+    }
+    return value;
+  };
+  return visit(data);
+}
+
+export const integrationRequestProcedure = protectedProcedure
+  .meta({
+    mcp: {
+      enabled: true,
+      description:
+        "Make an authenticated HTTP request to a configured integration using its stored credentials. Get integrationId from integration_all. Every method requires hasFullAccess because arbitrary endpoints can expose service credentials or mutate state. DELETE requires confirmed=true after user confirmation, including effects such as deleting files. Returns {status,data}, including upstream error statuses. Use the service's API documentation to choose the method, relative path and optional JSON body; consult official docs with your browsing tools, or ask the user for API docs if unavailable. Absolute URLs and redirects are rejected. 15 second deadline, 1 MiB response, 10 KiB JSON body. Supports Sonarr, Radarr, Lidarr, Readarr, Prowlarr, Overseerr, Jellyseerr, Seerr, Immich, slskd, Home Assistant, Coolify, Audiobookshelf, Speedtest Tracker, AdGuard Home and Nextcloud; other authentication schemes are rejected. Never suggest bypassing a permission denial.",
+    },
+  })
+  .input(integrationRequestSchema)
+  .mutation(async ({ ctx, input }) => {
+    const groups = await ctx.db.query.groupMembers.findMany({ where: eq(groupMembers.userId, ctx.session.user.id) });
+    const integration = await ctx.db.query.integrations.findFirst({
+      where: eq(integrations.id, input.integrationId),
+      with: {
+        secrets: true,
+        userPermissions: { where: eq(integrationUserPermissions.userId, ctx.session.user.id) },
+        groupPermissions: {
+          where: inArray(
+            integrationGroupPermissions.groupId,
+            groups.map(({ groupId }) => groupId),
+          ),
+        },
+      },
+    });
+    // Arbitrary GET endpoints can expose service credentials or mutate state.
+    if (!integration || !constructIntegrationPermissions(integration, ctx.session).hasFullAccess) {
+      throw new TRPCError({ code: "FORBIDDEN", message: "Missing integration permission: hasFullAccess" });
+    }
+    const targetUrl = resolveIntegrationRequestUrl(integration.url, input.path);
+    if (input.method === "DELETE" && input.confirmed !== true) {
+      throw new TRPCError({ code: "PRECONDITION_FAILED", message: "This action requires confirmation" });
+    }
+    if (input.method === "GET" && input.body !== undefined) {
+      throw new TRPCError({ code: "BAD_REQUEST", message: "GET requests cannot include a body" });
+    }
+    // Decrypt only after authorization, using the same snapshot as the URL and permissions.
+    // Do not log upstream data or retain error causes.
+    try {
+      const secrets = integration.secrets.map(({ kind, value }) => ({ kind, value: decryptSecret(value) }));
+      const auth = resolveIntegrationRequestAuth(integration.kind, secrets);
+      let tls: CustomWidgetHttpRequest["tls"];
+      if (targetUrl.protocol === "https:") {
+        const [ca, hostnames] = await Promise.all([
+          getAllTrustedCertificatesAsync(),
+          getTrustedCertificateHostnamesAsync(),
+        ]);
+        tls = { ca, checkServerIdentity: createCustomCheckServerIdentity(hostnames) };
+      }
+      const response = await executeCustomWidgetRequest({
+        baseUrl: integration.url,
+        targetUrl,
+        method: input.method,
+        body: JSON.stringify(input.body),
+        auth,
+        tls,
+        networkScope: "loopback",
+        kind: "action", // Disable redirects for reads and writes alike; never cache this tool.
+        timeoutMs: 15_000,
+        textFallback: true,
+      });
+      return { status: response.status, data: redactIntegrationResponse(response.data, secrets) };
+    } catch (error) {
+      if (error instanceof TRPCError) throw new TRPCError({ code: error.code, message: error.message });
+      if (error instanceof CustomWidgetDomainError) {
+        throw new TRPCError({
+          code: error.code,
+          message: "Integration request failed (timeout, response limit, redirect or invalid target)",
+        });
+      }
+      throw new TRPCError({ code: "BAD_GATEWAY", message: "Integration request failed" });
+    }
+  });
diff --git a/packages/api/src/router/integration/integration-router.ts b/packages/api/src/router/integration/integration-router.ts
index a36ff5c6e..f48b71af3 100644
--- a/packages/api/src/router/integration/integration-router.ts
+++ b/packages/api/src/router/integration/integration-router.ts
@@ -42,6 +42,7 @@ import { mediaRequestOptionsSchema, mediaRequestRequestSchema } from "@homarr/va
 import { createOneIntegrationMiddleware } from "../../middlewares/integration";
 import { createTRPCRouter, permissionRequiredProcedure, protectedProcedure, publicProcedure } from "../../trpc";
 import { throwIfActionForbiddenAsync } from "./integration-access";
+import { integrationRequestProcedure } from "./integration-request";
 import { MissingSecretError, testConnectionAsync } from "./integration-test-connection";
 import { mapTestConnectionError } from "./map-test-connection-error";
 
@@ -49,6 +50,7 @@ const logger = createLogger({ module: "integrationRouter" });
 const mediaRequestSearchKinds = getIntegrationKindsByCategory("mediaSearch");
 
 export const integrationRouter = createTRPCRouter({
+  request: integrationRequestProcedure,
   getKinds: publicProcedure
     .meta({
       mcp: {
diff --git a/packages/api/src/test/fixtures/integration-request-cert.pem b/packages/api/src/test/fixtures/integration-request-cert.pem
new file mode 100644
index 000000000..b4e67f8de
--- /dev/null
+++ b/packages/api/src/test/fixtures/integration-request-cert.pem
@@ -0,0 +1,11 @@
+-----BEGIN CERTIFICATE-----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=
+-----END CERTIFICATE-----
diff --git a/packages/api/src/test/fixtures/integration-request-key.pem b/packages/api/src/test/fixtures/integration-request-key.pem
new file mode 100644
index 000000000..d00243d8b
--- /dev/null
+++ b/packages/api/src/test/fixtures/integration-request-key.pem
@@ -0,0 +1,5 @@
+-----BEGIN PRIVATE KEY-----
+MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQgdtCOWMLD3Jpsd+Ly
+cVh8NDvA13f3idlev6Da4sCGSD6hRANCAAQAUxZz1tKL9PJpbBu9QQQ2QQ6DROZA
+NypLzgM9JVOhCo8+xNhhVZmpqoVSuYcImlbKuf5mPBW0P4BS3M9l7yb5
+-----END PRIVATE KEY-----
diff --git a/packages/api/src/test/integration-request.spec.ts b/packages/api/src/test/integration-request.spec.ts
new file mode 100644
index 000000000..d49dbed8b
--- /dev/null
+++ b/packages/api/src/test/integration-request.spec.ts
@@ -0,0 +1,300 @@
+import { readFileSync } from "node:fs";
+import { X509Certificate } from "node:crypto";
+import { createServer as createHttpsServer } from "node:https";
+import { createServer } from "node:http";
+import type { AddressInfo } from "node:net";
+import { afterAll, beforeAll, describe, expect, test, vi } from "vitest";
+
+import type { Session } from "@homarr/auth";
+import { encryptSecret } from "@homarr/common/server";
+import { executeCustomWidgetRequest } from "@homarr/custom-widgets/server";
+import { eq } from "@homarr/db";
+import { createDb } from "@homarr/db/test";
+import { integrations, integrationSecrets, integrationUserPermissions, users } from "@homarr/db/schema";
+import type { IntegrationPermission } from "@homarr/definitions";
+
+import { createTRPCRouter } from "../trpc";
+import {
+  integrationRequestProcedure,
+  integrationRequestSchema,
+  redactIntegrationResponse,
+  resolveIntegrationRequestAuth,
+  resolveIntegrationRequestUrl,
+} from "../router/integration/integration-request";
+
+vi.mock("@homarr/auth", () => ({}));
+const trust = vi.hoisted(() => ({
+  certificates: vi.fn(async (): Promise<string[]> => []),
+  hostnames: vi.fn(async (): Promise<{ hostname: string; thumbprint: string }[]> => []),
+}));
+vi.mock("@homarr/core/infrastructure/certificates", () => ({
+  getAllTrustedCertificatesAsync: trust.certificates,
+  getTrustedCertificateHostnamesAsync: trust.hostnames,
+}));
+
+const router = createTRPCRouter({ request: integrationRequestProcedure });
+const secret = "test-credential-not-for-output";
+const calls: { method: string | undefined; path: string | undefined; auth: string | undefined; body: string }[] = [];
+const server = createServer(async (req, res) => {
+  let body = "";
+  for await (const chunk of req) body += String(chunk);
+  calls.push({ method: req.method, path: req.url, auth: req.headers["x-api-key"] as string | undefined, body });
+  if (req.url === "/slow") return;
+  if (req.url === "/redirect") {
+    res.writeHead(302, { Location: "/echo" });
+    res.end();
+    return;
+  }
+  if (req.url === "/large") {
+    res.end("x".repeat(1024 * 1024 + 1));
+    return;
+  }
+  if (req.url === "/echo") {
+    res.writeHead(400, { "Content-Type": "application/json" });
+    res.end(JSON.stringify({ [secret]: [secret, encodeURIComponent(secret), Buffer.from(secret).toString("base64")] }));
+    return;
+  }
+  if (req.url === "/text") {
+    res.writeHead(500, { "Content-Type": "application/json" });
+    res.end(`invalid JSON ${secret}`);
+    return;
+  }
+  if (req.method === "DELETE") {
+    res.writeHead(204);
+    res.end();
+    return;
+  }
+  res.setHeader("Content-Type", "application/json");
+  res.end(JSON.stringify([{ id: 42, title: "Example series" }]));
+});
+let baseUrl: string;
+beforeAll(async () => {
+  await new Promise<void>((resolve) => server.listen(0, "127.0.0.1", resolve));
+  baseUrl = `http://127.0.0.1:${(server.address() as AddressInfo).port}`;
+});
+afterAll(async () => {
+  server.closeAllConnections();
+  await new Promise<void>((resolve, reject) =>
+    server.close((error) => {
+      if (error) reject(error);
+      else resolve();
+    }),
+  );
+});
+
+async function fixture(permission?: IntegrationPermission, setup?: (db: ReturnType<typeof createDb>) => Promise<void>) {
+  const db = createDb();
+  await db.insert(users).values([{ id: "reader" }, { id: "other" }]);
+  await db.insert(integrations).values({ id: "sonarr", name: "Sonarr", kind: "sonarr", url: baseUrl });
+  await db.insert(integrationSecrets).values({ integrationId: "sonarr", kind: "apiKey", value: encryptSecret(secret) });
+  // Another user's full permission must never grant this caller access.
+  await db.insert(integrationUserPermissions).values({ integrationId: "sonarr", userId: "other", permission: "full" });
+  if (permission)
+    await db.insert(integrationUserPermissions).values({ integrationId: "sonarr", userId: "reader", permission });
+  const session = {
+    user: { id: "reader", permissions: [], colorScheme: "light" },
+    expires: new Date().toISOString(),
+  } satisfies Session;
+  await setup?.(db);
+  return router.createCaller({ db, session, deviceType: undefined });
+}
+
+const get = { integrationId: "sonarr", method: "GET", path: "/api/v3/series" } as const;
+
+describe("integration_request validation", () => {
+  test.each([
+    "https://evil.com/x",
+    "https://example.com/x",
+    "//evil.com/x",
+    "\\\\evil.com/x",
+    "/\\evil.com",
+    " https://evil.com",
+    "https:\nevil.com",
+    "/x#fragment",
+  ])("rejects %s", (path) => {
+    expect(() => resolveIntegrationRequestUrl("https://example.com/base/", path)).toThrow();
+  });
+  test.each(["../series", "../../series", "%2e%2e/series"])("normalizes same-origin traversal %s", (path) => {
+    expect(resolveIntegrationRequestUrl("https://example.com/base/", path).href).toBe("https://example.com/series");
+  });
+  test("preserves URL resolution semantics and query parameters", () => {
+    expect(resolveIntegrationRequestUrl("https://example.com/base/", "series?id=42").href).toBe(
+      "https://example.com/base/series?id=42",
+    );
+    expect(resolveIntegrationRequestUrl("https://example.com/base/", "/series").pathname).toBe("/series");
+  });
+  test("accepts only JSON bodies and the specified methods", () => {
+    expect(integrationRequestSchema.safeParse({ ...get, body: new Date() }).success).toBe(false);
+    expect(integrationRequestSchema.safeParse({ ...get, method: "HEAD" }).success).toBe(false);
+  });
+  test("resolves supported auth and rejects unsupported or incomplete credentials", () => {
+    expect(resolveIntegrationRequestAuth("sonarr", [{ kind: "apiKey", value: secret }]).type).toBe("apiKeyHeader");
+    expect(resolveIntegrationRequestAuth("homeAssistant", [{ kind: "apiKey", value: secret }]).type).toBe("bearer");
+    expect(
+      resolveIntegrationRequestAuth("adGuardHome", [
+        { kind: "username", value: "user" },
+        { kind: "password", value: secret },
+      ]).type,
+    ).toBe("basic");
+    expect(() => resolveIntegrationRequestAuth("qBittorrent", [])).toThrow("not supported");
+    expect(() => resolveIntegrationRequestAuth("sonarr", [])).toThrow("incomplete");
+  });
+  test.each([42, true, false, null])("redacts echoed primitive credential %s", (value) => {
+    expect(redactIntegrationResponse(value, [{ kind: "password", value: String(value) }])).toBe("[REDACTED]");
+  });
+  test("redacts JSON-escaped credentials embedded in text", () => {
+    const password = 'quoted"password\\with-newline\n';
+    const encoded = JSON.stringify(password).slice(1, -1);
+    expect(
+      redactIntegrationResponse({ message: `password=${encoded}` }, [{ kind: "password", value: password }]),
+    ).toEqual({ message: "password=[REDACTED]" });
+  });
+  test("redacts basic credentials and JSON keys without damaging JSON", () => {
+    const credentials = Buffer.from(`user:${secret}`).toString("base64");
+    expect(
+      redactIntegrationResponse({ [secret]: `Basic ${credentials}` }, [
+        { kind: "username", value: "user" },
+        { kind: "password", value: secret },
+      ]),
+    ).toEqual({ "[REDACTED]": "Basic [REDACTED]" });
+  });
+});
+
+describe("integration_request with a mock integration server", () => {
+  test("GET authenticates with stored credentials and full permission", async () => {
+    const caller = await fixture("full");
+    await expect(caller.request(get)).resolves.toEqual({ status: 200, data: [{ id: 42, title: "Example series" }] });
+    expect(calls.at(-1)).toMatchObject({ method: "GET", path: "/api/v3/series", auth: secret });
+  });
+  test("keeps credentials and URL from the same integration snapshot", async () => {
+    const rotated = "credential-for-the-new-origin";
+    const caller = await fixture("full", async (db) => {
+      const snapshot = await db.query.integrations.findFirst({
+        where: eq(integrations.id, "sonarr"),
+        with: {
+          secrets: true,
+          userPermissions: { where: eq(integrationUserPermissions.userId, "reader") },
+          groupPermissions: true,
+        },
+      });
+      // Simulate a URL/key rotation immediately after the first SELECT completed.
+      await db.update(integrations).set({ url: "https://new-origin.example" }).where(eq(integrations.id, "sonarr"));
+      await db.update(integrationSecrets).set({ value: encryptSecret(rotated) });
+      vi.spyOn(db.query.integrations, "findFirst").mockResolvedValueOnce(snapshot);
+    });
+    await caller.request(get);
+    expect(calls.at(-1)?.auth).toBe(secret);
+  });
+  test("uses Homarr's trusted certificates and hostname exceptions without disabling TLS checks", async () => {
+    // This committed certificate/key pair is only for the loopback mock server.
+    const cert = readFileSync(new URL("./fixtures/integration-request-cert.pem", import.meta.url), "utf8");
+    const key = readFileSync(new URL("./fixtures/integration-request-key.pem", import.meta.url), "utf8");
+    const https = createHttpsServer({ cert, key }, (_req, res) => res.end('{"trusted":true}'));
+    await new Promise<void>((resolve) => https.listen(0, "127.0.0.1", resolve));
+    try {
+      const caller = await fixture("full", async (db) => {
+        await db.update(integrations).set({ url: `https://127.0.0.1:${(https.address() as AddressInfo).port}` });
+      });
+      await expect(caller.request(get)).rejects.toMatchObject({ code: "BAD_GATEWAY" });
+      trust.certificates.mockResolvedValue([cert]);
+      await expect(caller.request(get)).rejects.toMatchObject({ code: "BAD_GATEWAY" });
+      trust.hostnames.mockResolvedValue([
+        { hostname: "127.0.0.1", thumbprint: new X509Certificate(cert).fingerprint256 },
+      ]);
+      await expect(caller.request(get)).resolves.toEqual({ status: 200, data: { trusted: true } });
+    } finally {
+      trust.certificates.mockResolvedValue([]);
+      trust.hostnames.mockResolvedValue([]);
+      https.closeAllConnections();
+      await new Promise<void>((resolve) => https.close(() => resolve()));
+    }
+  });
+  test("denies GET without full permission even when another user has full access", async () => {
+    const caller = await fixture();
+    const before = calls.length;
+    await expect(caller.request(get)).rejects.toMatchObject({
+      code: "FORBIDDEN",
+      message: "Missing integration permission: hasFullAccess",
+    });
+    expect(calls).toHaveLength(before);
+  });
+  test.each(["GET", "POST", "PUT", "PATCH", "DELETE"] as const)(
+    "denies %s with only use permission",
+    async (method) => {
+      const caller = await fixture("use");
+      const before = calls.length;
+      await expect(caller.request({ ...get, method, confirmed: true })).rejects.toMatchObject({
+        code: "FORBIDDEN",
+        message: "Missing integration permission: hasFullAccess",
+      });
+      expect(calls).toHaveLength(before);
+    },
+  );
+  test("interact access does not authorize arbitrary endpoints", async () => {
+    const caller = await fixture("interact");
+    await expect(caller.request(get)).rejects.toMatchObject({
+      code: "FORBIDDEN",
+      message: "Missing integration permission: hasFullAccess",
+    });
+  });
+  test("DELETE requires confirmation and preserves deleteFiles", async () => {
+    const caller = await fixture("full");
+    const input = { ...get, method: "DELETE", path: "/api/v3/series/42?deleteFiles=true" } as const;
+    const before = calls.length;
+    await expect(caller.request(input)).rejects.toMatchObject({ code: "PRECONDITION_FAILED" });
+    expect(calls).toHaveLength(before);
+    await expect(caller.request({ ...input, confirmed: true })).resolves.toEqual({ status: 204, data: null });
+    expect(calls.at(-1)).toMatchObject({ method: "DELETE", path: input.path, auth: secret });
+  });
+  test("sends a JSON body with full access", async () => {
+    const caller = await fixture("full");
+    await caller.request({ ...get, method: "PATCH", body: { monitored: false } });
+    expect(calls.at(-1)?.body).toBe('{"monitored":false}');
+  });
+  test.each(["https://evil.com/x", "//evil.com/x"])("rejects %s before HTTP", async (path) => {
+    const caller = await fixture("full");
+    const before = calls.length;
+    await expect(caller.request({ ...get, path })).rejects.toMatchObject({ code: "BAD_REQUEST" });
+    expect(calls).toHaveLength(before);
+  });
+  test("never follows a redirect", async () => {
+    const caller = await fixture("full");
+    const before = calls.length;
+    await expect(caller.request({ ...get, path: "/redirect" })).rejects.toMatchObject({ code: "BAD_GATEWAY" });
+    expect(calls).toHaveLength(before + 1);
+  });
+  test("enforces the response and request caps", async () => {
+    const caller = await fixture("full");
+    await expect(caller.request({ ...get, path: "/large" })).rejects.toMatchObject({ code: "PAYLOAD_TOO_LARGE" });
+    await expect(caller.request({ ...get, method: "POST", body: "x".repeat(10 * 1024) })).rejects.toMatchObject({
+      code: "PAYLOAD_TOO_LARGE",
+    });
+  });
+  test("redacts upstream JSON and text, including error responses", async () => {
+    const caller = await fixture("full");
+    await expect(caller.request({ ...get, path: "/echo" })).resolves.toEqual({
+      status: 400,
+      data: { "[REDACTED]": ["[REDACTED]", "[REDACTED]", "[REDACTED]"] },
+    });
+    await expect(caller.request({ ...get, path: "/text" })).resolves.toEqual({
+      status: 500,
+      data: "invalid JSON [REDACTED]",
+    });
+  });
+  test("honors the executor's total deadline without logging credentials", async () => {
+    const logError = vi.fn();
+    await expect(
+      executeCustomWidgetRequest({
+        baseUrl,
+        targetUrl: `${baseUrl}/slow`,
+        method: "GET",
+        networkScope: "loopback",
+        kind: "action",
+        timeoutMs: 30,
+        auth: { type: "apiKeyHeader", secrets: [{ kind: "apiKey", value: secret }] },
+        logError,
+      }),
+    ).rejects.toMatchObject({ code: "BAD_GATEWAY", reason: "timeout" });
+    expect(JSON.stringify(logError.mock.calls)).not.toContain(secret);
+  });
+});
diff --git a/packages/api/src/test/mcp.spec.ts b/packages/api/src/test/mcp.spec.ts
index 4644617c8..d9508bce6 100644
--- a/packages/api/src/test/mcp.spec.ts
+++ b/packages/api/src/test/mcp.spec.ts
@@ -87,6 +87,7 @@ const MCP_TOOL_ALLOWLIST = {
     "wud_getStats",
   ],
   mutation: [
+    "integration_request",
     "app_create",
     "app_delete",
     "app_update",
diff --git a/packages/custom-widgets/src/server/network-policy.ts b/packages/custom-widgets/src/server/network-policy.ts
index 39064a7f5..21e1e0588 100644
--- a/packages/custom-widgets/src/server/network-policy.ts
+++ b/packages/custom-widgets/src/server/network-policy.ts
@@ -1,6 +1,7 @@
 import { lookup } from "node:dns/promises";
 import { BlockList, isIP } from "node:net";
 import type { LookupFunction } from "node:net";
+import type { ConnectionOptions } from "node:tls";
 import { Agent } from "undici";
 
 import type { CustomJsxNetworkScope } from "../core";
@@ -191,7 +192,11 @@ export function assertSafeStaticHeaders(headers: Record<string, string> | undefi
   }
 }
 
-export function createPinnedAgent(addresses: ResolvedAddress[], timeoutMs: number) {
+export function createPinnedAgent(
+  addresses: ResolvedAddress[],
+  timeoutMs: number,
+  tls?: Pick<ConnectionOptions, "ca" | "checkServerIdentity">,
+) {
   const customLookup: LookupFunction = (_hostname, options, callback) => {
     const family = options.family === 4 || options.family === 6 ? options.family : undefined;
     const candidates = family ? addresses.filter((entry) => entry.family === family) : addresses;
@@ -204,7 +209,7 @@ export function createPinnedAgent(addresses: ResolvedAddress[], timeoutMs: numbe
     else callback(null, selected.address, selected.family);
   };
   return new Agent({
-    connect: { lookup: customLookup },
+    connect: { ...tls, lookup: customLookup },
     connectTimeout: timeoutMs,
     headersTimeout: timeoutMs,
     bodyTimeout: timeoutMs,
diff --git a/packages/custom-widgets/src/server/request-executor.ts b/packages/custom-widgets/src/server/request-executor.ts
index db7976761..df8627765 100644
--- a/packages/custom-widgets/src/server/request-executor.ts
+++ b/packages/custom-widgets/src/server/request-executor.ts
@@ -1,4 +1,5 @@
 import { Buffer } from "node:buffer";
+import type { ConnectionOptions } from "node:tls";
 import { STATUS_CODES } from "node:http";
 import { Headers, Response } from "undici";
 
@@ -52,6 +53,9 @@ export interface CustomWidgetHttpRequest {
   auth?: CustomWidgetAuthConfig;
   networkScope: CustomJsxNetworkScope;
   kind: "query" | "action";
+  timeoutMs?: number;
+  textFallback?: boolean;
+  tls?: Pick<ConnectionOptions, "ca" | "checkServerIdentity">;
   cacheKey?: string;
   cacheTtlSeconds?: number;
   logError?: (event: { origin: string; method: CustomWidgetMethod; errorName: string; reason?: "timeout" }) => void;
@@ -73,7 +77,10 @@ type RequestHopResult =
 
 async function performRequest(input: CustomWidgetHttpRequest): Promise<CustomWidgetHttpResponse> {
   const controller = new AbortController();
-  const timeout = setTimeout(() => controller.abort(), MAX_REQUEST_DURATION_MS);
+  const timeout = setTimeout(
+    () => controller.abort(),
+    Math.min(input.timeoutMs ?? MAX_REQUEST_DURATION_MS, MAX_REQUEST_DURATION_MS),
+  );
   try {
     return await performRequestWithinDeadline(input, controller.signal);
   } catch (error) {
@@ -113,6 +120,7 @@ async function performRequestWithinDeadline(
     const dispatcher = createPinnedAgent(
       await resolveAndValidateHost(currentUrl.hostname, input.networkScope, { signal: deadlineSignal }),
       REQUEST_TIMEOUT_MS,
+      input.tls,
     );
     const headers = buildHeaders(input, currentUrl, currentBody);
     const controller = new AbortController();
@@ -141,7 +149,7 @@ async function performRequestWithinDeadline(
             ok: response.ok,
             status: response.status,
             statusText: response.statusText,
-            data: await parseResponseBody(response),
+            data: await parseResponseBody(response, input.textFallback),
           },
         };
       } else {
diff --git a/packages/custom-widgets/src/server/response.ts b/packages/custom-widgets/src/server/response.ts
index dec549d17..9be42fc11 100644
--- a/packages/custom-widgets/src/server/response.ts
+++ b/packages/custom-widgets/src/server/response.ts
@@ -45,7 +45,7 @@ async function readLimitedBody(response: Response): Promise<string> {
   return new TextDecoder("utf-8", { fatal: true }).decode(bytes);
 }
 
-export async function parseResponseBody(response: Response): Promise<unknown> {
+export async function parseResponseBody(response: Response, textFallback = false): Promise<unknown> {
   const text = await readLimitedBody(response);
   if (!text) return null;
   try {
@@ -54,7 +54,7 @@ export async function parseResponseBody(response: Response): Promise<unknown> {
     return json;
   } catch (error) {
     if (error instanceof CustomWidgetDomainError) throw error;
-    if (response.headers.get("content-type")?.toLowerCase().includes("json")) {
+    if (!textFallback && response.headers.get("content-type")?.toLowerCase().includes("json")) {
       throw new CustomWidgetDomainError({ code: "BAD_REQUEST", message: "Upstream returned invalid JSON" });
     }
     return text;