easypost for ChatGPT

io.usefulapi/easypost

MCP server for EasyPost — rate shipments, buy & refund labels, track packages, verify addresses.

client:ChatGPT transport:streamable-http

Install easypost in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://easypost.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