Most people using pi probably know. MCP is “model context protocol”, a protocol by which models can connect to apis and services and conversely a way to expose those apis and services so they can be used by llms and agents. https://modelcontextprotocol.io/docs/2026-07-28/getting-star...

1. The first paragraph has a callback and link 2. You're not the intended audience of the post most likely

It's just like API-s, but with built in documentation.

MCP is the NIH non-standard version of OpenAPI.