Documint MCP by usefulapi for ChatGPT

io.usefulapi/documint

List and read templates; merge field values into PDF documents in Documint.

client:ChatGPT transport:streamable-http tools:3

Install Documint MCP by usefulapi in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://documint.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