PostLake MCP server

PostLake: the social operating system for AI agents

Give an agent one reliable way to run social. PostLake lets agents publish, schedule, monitor, discover, reply, moderate, and learn across X, LinkedIn, Instagram, TikTok, Facebook, Threads, Bluesky, YouTube, and Pinterest.

One connection gives an agent one normalised contract instead of nine platform SDKs, nine auth models, and nine incompatible result shapes. It can act with a hosted MCP server, a drop-in agent skill, or the REST API.

An agent can plan a campaign, validate each destination before it spends a

credit, publish or save a draft for approval, confirm asynchronous posts,

read conversations and comments, handle what needs a response, and use the

results to decide what to do next.

• Hosted MCP: https://api.postlake.dev/mcp
• Documentation: https://docs.postlake.dev
• Website: https://postlake.dev
• Machine-readable docs: https://postlake.dev/llms.txt
• MCP Registry: dev.postlake/social
• Grok Build: install postlake from the plugin marketplace, or add this repo as a marketplace source

Why agents use PostLake

One contract, every network

Post once or fan out to every connected network. Each target has the same state, URL, time, and error shape, so an agent handles the result once rather than writing platform-specific recovery logic.

Safe to let an agent act

validatepost provides a free dry run before publishing. Idempotency keys make retries safe. Owners can require approval on an OAuth connection, which forces every publish request from that agent into a draft and prevents it from approving its own work. confirmpost checks an asynchronous provider after it accepts a post, and every action reports the individual target result rather than hiding partial failure.

Not just a publishing endpoint

An agent can read a unified feed of notifications, direct messages, comments, and post performance. It can then reply, moderate, engage, research a topic, or inspect an account before it acts. Social management stays in the same workflow as publishing.

Human control where it belongs

OAuth makes the account owner approve a connection in the browser. getconnectlink lets an agent send them directly to that approval step. Owners can revoke an agent, manage channels, set agent limits, and require approval from PostLake. An OAuth agent cannot create an unrestricted account key to bypass those controls, and never needs a social-network password.

Start in minutes

Hosted MCP: Cursor, Claude, ChatGPT, Gemini, Copilot, and more

PostLake is a remote Streamable HTTP MCP server. Nothing is installed, run, or self-hosted. Add this server in your MCP client, then complete the PostLake OAuth approval once.

{
  "mcpServers": {
    "postlake": {
      "url": "https://api.postlake.dev/mcp"
    }
  }
}

Cursor

Open Settings -> Tools & MCP -> New MCP server, add the configuration above, then select Connect for PostLake and approve the browser sign-in.

Claude Code

claude mcp add --transport http postlake https://api.postlake.dev/mcp

Grok Build

This repository is a Grok Build plugin. It ships the hosted MCP server and the agent skills. No local process, no shell hooks, no API key in chat.

Add this repo as a marketplace, then install postlake:

grok plugin marketplace add PostLake/postlake-mcp
grok plugin install postlake --trust

Inside Grok Build you can also browse /marketplace after the official xAI catalog lists it.

The MCP server is https://api.postlake.dev/mcp (Streamable HTTP). On first use, Grok opens PostLake OAuth in the browser. The account owner approves the agent once and can revoke it from https://app.postlake.dev/app/agents.

This plugin calls only:

Shortened. The full README is on GitHub.