Hither for ChatGPT

dev.hither/hither

Use a person's computer after they approve it there: files, Terminal, browser, local MCP.

client:ChatGPT transport:streamable-http

Install Hither in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://hither.dev/mcp

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