MCP (Model Context Protocol)
An open protocol that lets AI assistants call tools and read data from other services.
What it means
MCP defines how an AI assistant discovers tools on a server, what their inputs look like and how results come back, so one integration works across assistants.
How Onekey handles it
Onekey runs a hosted MCP server at /mcp next to the REST API, authenticated with your API key as a bearer token or x-api-key. It is a thin layer over the REST routes, so billing, caching, refunds, rate limits and per-key limits behave exactly as they do there.