Ronacher Suggests Replacing MCP with OpenAPI+RAG

Armin Ronacher questioned the need for MCP, noting Radius's reference implementation works well with just OpenAPI, and added that layering an OpenAPI+RAG approach on top of MCP is awkward since MCP wasn't designed for it.

2026-09-18 ~ 2026-09-18 · 2 related posts

• Armin Ronacher floats replacing MCP with codemode + OpenAPI + RAG over API docs — mitsuhiko · 2026-09-18
• Ronacher: OpenAPI-style approach can layer on MCP but it wasn't built for that — mitsuhiko · 2026-09-18