The social media MCP server
PostJay's MCP server lets any AI agent — Claude, ChatGPT, Cursor and more — schedule and publish to 13 platforms. One endpoint, real posting.
The Model Context Protocol (MCP) is how AI agents call real tools. PostJay exposes a social-media MCP server so any MCP-capable agent can do more than write posts — it can list your connected accounts, draft captions, and schedule or publish across 13 networks.
One endpoint (postjay.com/api/mcp), authenticated with an API key or OAuth, works with Claude, ChatGPT, Cursor and any other MCP client. Everything publishes for real through each platform's official API — with per-platform formatting, rate-limit handling and optional client approval built in.
Why post from MCP with PostJay
Works with any MCP client
One server, many agents. Connect from Claude, ChatGPT, Cursor or your own MCP client — the same scheduling tools are available everywhere.
Real tools, real publishing
List integrations, draft, schedule, and publish — the agent uses the same reliable pipeline the PostJay app uses, not a fragile automation.
API-key or OAuth auth
Connect with an API key for scripts, or OAuth for one-click connect in ChatGPT and Claude. A REST API is available alongside for non-MCP use.
How it works
- 1
Grab your API key (or use OAuth) from PostJay settings.
- 2
Add the MCP endpoint (postjay.com/api/mcp) to your agent — Claude, ChatGPT, Cursor or any MCP client.
- 3
Ask the agent to draft and schedule; PostJay publishes to your 13 platforms.
MCP + PostJay FAQ
What is a social media MCP server?
An MCP server exposes tools an AI agent can call. PostJay's lets agents like Claude, ChatGPT and Cursor draft, schedule and publish social posts to 13 platforms — turning an assistant that only writes text into one that actually posts.
How do I connect to PostJay's MCP server?
Add the endpoint postjay.com/api/mcp to your MCP client and authenticate with a PostJay API key or OAuth. It works with Claude, ChatGPT, Cursor and any MCP-capable agent. See the API & MCP docs; available from the $9/mo Starter plan.
Is there a REST API too?
Yes. Alongside MCP, PostJay offers a REST API (postjay.com/api/v1) for scripts, CI and custom integrations, so you can schedule posts without an MCP client.
Which platforms does it publish to?
All 13: Instagram, TikTok, YouTube, LinkedIn, Facebook, Pinterest, Threads, Bluesky, X, Mastodon, Discord, Telegram and Tumblr. The agent schedules to any of them, and PostJay handles per-platform formatting and rate limits for real, reliable publishing.
Connect other agents
PostJay works with Claude, ChatGPT, Cursor and any MCP client. Full setup is in the API & MCP docs.
Post from MCP with PostJay
Draft and schedule to 13 platforms from your AI agent. Every plan starts with a 7-day free trial — from $9/mo.