MCP

MCP Playground

Send live JSON-RPC requests to the CKF MCP endpoint and inspect the raw response. No setup — runs straight from your browser against /api/mcp.

Compile a file (PDF / TXT / MD / DOCX)

Upload a document — we extract the text in the browser, build a ckf.compile JSON-RPC request, send it to /api/mcp, and show the raw response.

Text is extracted locally · up to 60,000 chars are sent to ckf.compile.

Example

Discover the full catalog of CKF tools exposed via MCP.

Authorization (optional Supabase JWT — for Advanced AI (admin only) on allowlist)

Request body (JSON-RPC 2.0)

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list",
  "params": {}
}

All requests hit POST /api/mcp with Accept: application/json, text/event-stream as required by the MCP Streamable HTTP spec.
Public tools (compile, parse, validate, example, search, viewer) work with no Authorization header.
ckf.compile_llm requires either a byok_key in the arguments or a Supabase JWT from an allowlisted user (Advanced AI (admin only) path).
Rate-limited per IP. Heavy use should go through a real MCP client (Claude Desktop, Cursor, AI SDK).