PostSyncer for ChatGPT

io.github.postsyncer/postsyncer

Schedule, publish, and analyze social media posts across 11 platforms from any MCP client.

client:ChatGPT transport:streamable-http

Install PostSyncer in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://postsyncer.com/mcp

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