FeedHorizon for ChatGPT

com.feedhorizon/mcp

Schedule and publish posts on X, LinkedIn, Instagram, Bluesky and Pinterest.

client:ChatGPT transport:streamable-http

Install FeedHorizon in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://feedhorizon.com/mcp

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