{
  "endpoint": "/api/v1/mcp",
  "handshake": {
    "id": 1,
    "jsonrpc": "2.0",
    "method": "tools/list",
    "params": {}
  },
  "method": "POST",
  "note": "This endpoint answers POST only, which is why a browser shows nothing useful here. Point an MCP client at it, or send the handshake below. Listing tools needs no credential; calling one that acts does.",
  "protocol": "Model Context Protocol (JSON-RPC 2.0 over HTTP)",
  "rails": {
    "crypto": "Pay in USDC on Base with no account: /api/v1/x402/catalog",
    "fiat": "A watchdog over what your agent pays elsewhere: /api/v1/fiat/register"
  },
  "tools_url": "/api/v1/mcp/tools"
}