Restish can now render API responses as TOON, a compact text encoding of the JSON data model that cuts token costs when an LLM agent reads the result. Here is where it wins, where it loses, and how to combine it with filtering.
OpenAPI can be more than SDK input or Swagger UI data. Restish loads API descriptions at runtime and turns them into shell-native commands with profiles, auth, output, pagination, and MCP-ready extension points.
Restish v2 keeps the fast one-off HTTP workflow, then turns OpenAPI-described APIs into shell-native commands with profiles, auth, output filtering, pagination, plugins, and MCP.