Legacy MCP compatibility proxy

POST/mcpMCPFrom Free

Temporary compatibility route for existing clients.

Deprecated compatibility proxy. It preserves authenticated POST bodies and headers, emits Deprecation, Sunset and successor Link headers, and is scheduled to sunset on 2026-11-04. New clients must use https://mcp.humandesign.ai/.

Authentication

Use Authorization: Bearer YOUR_API_KEY or X-Api-Key. Query-key authentication is deprecated compatibility behavior on supported REST routes and is rejected on Agent HTTP and MCP surfaces. Never put credentials in URLs, request bodies, or browser code.

Parameters

NameInRequiredDescription
AuthorizationheaderYesBearer API key. X-Api-Key is also supported.
Bearer YOUR_API_KEY
jsonrpcbodyYesJSON-RPC protocol version.
2.0
methodbodyYesMCP method name.
tools/list
idbodyNoJSON-RPC request identifier.
1
paramsbodyNoMethod parameters.
{}

Errors

Expect 400 for invalid input, 401 for a missing or malformed key, 403 when the active plan does not include this operation, and 429 when the monthly allowance is exhausted.

Related operations