> ## Documentation Index
> Fetch the complete documentation index at: https://docs.yambr.com/llms.txt
> Use this file to discover all available pages before exploring further.

# n8n

> Use Computer Use as an MCP Tool node in an n8n workflow.

[n8n](https://n8n.io)'s **MCP Tool** node speaks MCP over Streamable HTTP — add Computer Use as one more tool provider.

## Config (managed Yambr)

| Field            | Value                                    |
| ---------------- | ---------------------------------------- |
| URL              | `https://api.yambr.com/mcp/computer_use` |
| Auth             | `Authorization: Bearer sk-yambr-...`     |
| Headers          | `X-Chat-Id: {{ $execution.id }}`         |
| Optional headers | `X-User-Email`, `X-MCP-Servers`          |

Get the key at [app.yambr.com](https://app.yambr.com/).

## Config (self-hosted)

| Field   | Value                                                                                                |
| ------- | ---------------------------------------------------------------------------------------------------- |
| URL     | `http://computer-use-server:8081/mcp` (same Docker network) or `https://cu.example.com/mcp` (public) |
| Auth    | `Authorization: Bearer <MCP_API_KEY>`                                                                |
| Headers | `X-Chat-Id: {{ $execution.id }}`                                                                     |

## Pattern: AI-assisted pipeline

A useful pattern is to wire Computer Use into an AI agent node:

1. **Trigger** — webhook / schedule / Telegram message.
2. **AI Agent** — any chat model, configured to use your own OpenAI / Anthropic credentials.
3. **MCP Tool** — points at Yambr (or your self-hosted server). Gives the agent bash, file I/O, browser, skills.
4. **Post-process** — forward artifacts to email / Slack / DB.

Per-execution `X-Chat-Id` = per-run sandbox. For long-lived agents, reuse a chat id across runs so the sandbox's state persists.

<Note>
  The n8n **AI Agent** node's model credential is *your* OpenAI / Anthropic / Google key. Yambr stays a tool provider — we don't take your LLM traffic.
</Note>

## Headers reference

| Header          | Required                | Purpose                                           |
| --------------- | ----------------------- | ------------------------------------------------- |
| `Authorization` | If `MCP_API_KEY` is set | `Bearer <token>`                                  |
| `X-Chat-Id`     | Yes                     | One sandbox per id                                |
| `X-User-Email`  | No                      | Per-user skills                                   |
| `X-MCP-Servers` | No                      | Comma-separated MCP servers passed to `sub_agent` |

## Related

* [MCP API reference](/api-reference/introduction)
* [Self-hosting quickstart](/install/quickstart)