manus-mcp-server

A Remote MCP server that wraps the Manus API and exposes a generate_image tool, so Claude (web/app) can request images and have Manus generate them.

How it works

Manus's API is a general task API, not a dedicated image endpoint. This server:

1. Receives a generate_image tool call from Claude (prompt, optional style/aspect ratio).

2. Creates a Manus task asking the agent to produce an image and return it as a file.

3. Polls the task until it completes (or times out after 4 minutes).

4. Returns the resulting file URL(s) back to Claude as the tool result.

Related MCP server: nb-mcp

1. Deploy on Railway

1. Push this repo to GitHub.

2. In Railway: New Project → Deploy from GitHub repo → select this repo.

3. Railway will detect railway.json and use Nixpacks to run npm install && npm run build, then npm start.

4. In the Railway project, go to Variables and set:

   • MANUS_API_KEY — your Manus API key.

   • MANUS_API_BASE_URL — defaults to https://api.manus.im/v1; check your Manus API docs/dashboard and adjust if different.

   • MCP_SERVER_TOKEN — make up a long random string (e.g. openssl rand -hex 32). This protects your server from being called by strangers.

   • PORT — Railway sets this automatically; no action needed.

5. Once deployed, go to Settings → Networking → Generate Domain to get a public HTTPS URL, e.g. https://manus-mcp-server-production.up.railway.app.

6. Confirm it's alive: visit https://<your-domain>/health — should return {"status":"ok"}.

2. Verify the Manus API endpoint shape

The exact paths (/tasks, response field names like task_id vs id) can vary by account/API version. Before relying on this in production:

• Check https://manus.im/docs/integrations/manus-api (or your account's API reference) for the current create-task and get-task endpoints and response fields.

• If they differ from what's in src/manusClient.ts, adjust the constants at the top of that file (CREATE_TASK_PATH, GET_TASK_PATH, and the field names read in createImageTask/getTask) and redeploy.

• Easiest way to check without guessing: make one manual curl call to create a task and print the raw JSON, then match the field names.

3. Connect it to Claude

In Claude (web or app): Settings → Connectors → Add custom connector (the exact label may read "Remote MCP server" or similar).

• URL: https://<your-railway-domain>/mcp

• Auth: if Claude's UI supports a custom header/bearer token field, set it to Bearer <your MCP_SERVER_TOKEN>. If it only supports OAuth, you'll need to either leave MCP_SERVER_TOKEN unset (open server — only do this if you're comfortable with that) or add an OAuth layer in front (out of scope here, ask if you want this built).

Once connected, you can just ask Claude for an image and it will call the generate_image tool automatically.

Local development

npm install
cp .env.example .env   # fill in your real values
npm run dev

Server runs at http://localhost:3000/mcp.