Wrendocs

Developers

Wren developer docs

Wren exposes a remote MCP server. Any MCP client can sign in with a Wren account and write handwritten notes, graphs, formulas and diagrams into the user’s notebook as editable ink.

Try it in 10 seconds

Discovery needs no credentials. This lists every tool the server offers:

Terminal
curl -s https://mcp.wrenapp.ai/mcp \
  -H 'content-type: application/json' \
  -H 'accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

Tools that read or change a user’s notes require an OAuth access token; see Authentication.

Guides

  • Overview & setup

    Server details and copy-paste config for Claude, Claude Code, Cursor and Codex.

  • Authentication

    The OAuth 2.0 flow: discovery, PKCE, client registration, scopes, and the 401 challenge.

  • Tool reference

    All 10 tools with scopes, parameters, behaviour hints and a request for each.

  • JSON-RPC examples

    Raw curl calls against the live server, with real responses.