Knack MCP by usefulapi for ChatGPT

io.usefulapi/knack

Read, create, update and delete records; inspect objects, fields and schema in your Knack database.

client:ChatGPT transport:streamable-http tools:9

Install Knack MCP by usefulapi in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://knack.usefulapi.io/mcp

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