# GitLab + n8n.io — Pipedream Connect

> Connect a user's GitLab and n8n.io accounts and expose tools for both apps directly in your product or your agent.

- Apps: GitLab (`gitlab`) + n8n.io (`n8n_io`)
- This page (HTML): https://pipedream.com/apps/gitlab/integrations/n8n-io
- One `external_user_id` owns both connected accounts, and each account stays independently revocable.

## One session, both toolsets (recommended)

- Endpoint: `https://remote.mcp.pipedream.net/v3`
- Headers: `Authorization: Bearer <token>` · `x-pd-project-id` · `x-pd-environment` · `x-pd-external-user-id` · `x-pd-app-slug: gitlab,n8n_io`
- `x-pd-app-slug` takes a comma-separated list, so `gitlab,n8n_io` is one session on one transport. Both toolsets arrive from a single `listTools()`, and a tool is called exactly as it would be in a single-app session.

```ts
import { Client } from "@modelcontextprotocol/sdk/client/index.js"
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"
import { PipedreamClient } from "@pipedream/sdk"

const pd = new PipedreamClient({
  projectId: process.env.PIPEDREAM_PROJECT_ID!,
  clientId: process.env.PIPEDREAM_CLIENT_ID!,
  clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
  projectEnvironment: "production",
})

const accessToken = await pd.rawAccessToken

const transport = new StreamableHTTPClientTransport(
  new URL("https://remote.mcp.pipedream.net/v3"),
  {
    requestInit: {
      headers: {
        Authorization: `Bearer ${accessToken}`,
        "x-pd-project-id": process.env.PIPEDREAM_PROJECT_ID!,
        "x-pd-environment": "production",
        "x-pd-external-user-id": "{external_user_id}", // any stable ID for this user in your system
        "x-pd-app-slug": "gitlab,n8n_io",
      },
    },
  },
)

const mcp = new Client({ name: "my-agent", version: "1.0.0" })
await mcp.connect(transport)

const { tools } = await mcp.listTools()

// One list, both toolsets: GitLab and n8n.io tools arrive
// together, each keyed by its own app's slug.

// e.g. run Approve Merge Request:
const result = await mcp.callTool({
  name: "gitlab-approve-merge-request",
  arguments: {
    projectId: "Project",
    mergeRequestIid: 10,
  },
})
```

Docs: [MCP guide](https://pipedream.com/docs/connect/mcp/developers.md)

## Both apps from your backend

```ts
import { PipedreamClient } from "@pipedream/sdk"

const pd = new PipedreamClient({
  projectId: process.env.PIPEDREAM_PROJECT_ID!,
  clientId: process.env.PIPEDREAM_CLIENT_ID!,
  clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
  projectEnvironment: "production",
})

const externalUserId = "{external_user_id}" // any stable ID for this user in your system

const [gitlabTools, n8nIoTools] =
  await Promise.all([
    pd.components.list({ app: "gitlab" }),
    pd.components.list({ app: "n8n_io" }),
  ])

// One external user owns both connected accounts, so either app's tools
// run on their behalf with the same externalUserId.
```

Docs: [Managed auth guide](https://pipedream.com/docs/connect/managed-auth/quickstart.md) · [Tools guide](https://pipedream.com/docs/connect/components.md)

## GitLab

- API slug: `gitlab` (use in MCP headers and tool keys)
- Auth: OAuth (Pipedream-managed)
- Categories: Developer Tools
- Website: https://about.gitlab.com/
- Managed OAuth scopes: `api` · `read_user` · `read_repository` · `write_repository` · `read_registry` · `sudo` · `openid` · `profile` · `email`
- App page (HTML): https://pipedream.com/apps/gitlab
- Tools: 28 actions · 10 triggers

Full tool list, API proxy, and SDK quickstart: https://pipedream.com/apps/gitlab.md

### Actions (top 8 of 28)

- [Approve Merge Request](https://pipedream.com/apps/gitlab/actions/approve-merge-request.md) — `gitlab-approve-merge-request`
- [Create Branch](https://pipedream.com/apps/gitlab/actions/create-branch.md) — `gitlab-create-branch`
- [Create Epic](https://pipedream.com/apps/gitlab/actions/create-epic.md) — `gitlab-create-epic`
- [Create issue](https://pipedream.com/apps/gitlab/actions/create-issue.md) — `gitlab-create-issue`
- [Create Merge Request](https://pipedream.com/apps/gitlab/actions/create-merge-request.md) — `gitlab-create-merge-request`
- [Create Merge Request Comment](https://pipedream.com/apps/gitlab/actions/create-merge-request-comment.md) — `gitlab-create-merge-request-comment`
- [Create Merge Request Review](https://pipedream.com/apps/gitlab/actions/create-merge-request-review.md) — `gitlab-create-merge-request-review`
- [Get Issue](https://pipedream.com/apps/gitlab/actions/get-issue.md) — `gitlab-get-issue`

### Triggers (top 4 of 10)

- [New Commit (Instant)](https://pipedream.com/apps/gitlab/triggers/new-commit.md) — `gitlab-new-commit`
- [New Branch (Instant)](https://pipedream.com/apps/gitlab/triggers/new-branch.md) — `gitlab-new-branch`
- [New Project](https://pipedream.com/apps/gitlab/triggers/new-project.md) — `gitlab-new-project`
- [New Audit Event (Instant)](https://pipedream.com/apps/gitlab/triggers/new-audit-event.md) — `gitlab-new-audit-event`

## n8n.io

- API slug: `n8n_io` (use in MCP headers and tool keys)
- Auth: API key (Pipedream-managed)
- Categories: Infrastructure & Cloud
- Website: https://n8n.io/
- App page (HTML): https://pipedream.com/apps/n8n-io
- Tools: 0 actions · 0 triggers

Full tool list, API proxy, and SDK quickstart: https://pipedream.com/apps/n8n-io.md

---

- GitLab: https://pipedream.com/apps/gitlab.md · n8n.io: https://pipedream.com/apps/n8n-io.md
- All apps: https://pipedream.com/apps — index: https://pipedream.com/llms.txt
- Pipedream docs for agents: https://pipedream.com/docs/llms.txt