OpenAPI.city - Stop AI agents from hallucinating APIs
OpenAPI.city is a hosted API service that gives AI agents instant, structured access to OpenAPI specifications. It sits between an agent and the APIs it needs to use — the agent asks for one endpoint, a compact summary, or a specific schema, and gets exactly that, nothing more. This avoids context window overflow (3% vs 90% context usage) and eliminates API hallucinations. Available via REST API and MCP server with 100+ popular APIs indexed, weekly automated refreshes, on-demand schema access, and endpoint-level extraction.
Server Config
{
"mcpServers": {
"openapi-city": {
"url": "https://openapi.city/mcp",
"headers": {
"Authorization": "Bearer <oac_live_YOUR_KEY>"
}
}
}
}Project Info
Created At
25 days agoUpdated At
25 days agoAuthor Name
Tobias FeistmantlStar
-Language
-License
-Homepage
https://openapi.city