validate for ChatGPT

io.github.machinegrade/validate

Deterministic validation for AI-generated artifacts: JSON Schema, OpenAPI response, SQL syntax.

client:ChatGPT transport:streamable-http runtime:npm tools:1

Install validate in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.machinegrade.dev/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs