Documentation
Post everywhere from one API.
PostLake is the social media API for AI agents. One integration, REST or a hosted MCP server, lets your code (or an agent) publish, schedule and pull analytics across every major network, with one normalised response for every platform.
New here? Jump straight to the Quickstart. You'll publish your first post in a few minutes.
Pick your path
Call the REST API →
You're a developer or using a tool like Zapier. Create a key and publish from your own code.
Connect an AI agent →
Point Claude, ChatGPT or Cursor at the hosted MCP server and just ask it to post. No code.
The essentials
| Base URL | https://api.postlake.dev |
| Auth | Bearer token: Authorization: Bearer YOUR_API_KEY |
| Format | JSON requests and responses, unless noted |
| MCP server | https://api.postlake.dev/mcp |
How PostLake works
You connect your social accounts once. Then a single POST /v1/posts call fans out to every account you choose and returns one normalised response: a post id plus a targets array, one entry per account, telling you exactly what happened and where. Your code never branches per platform.
- Managed keys: platform connections are handled for you, so there's no per-platform developer app to register.
- Agent-safe: idempotency keys mean a retrying agent never double-posts.
- Usage-based: a free tier to start, then you pay per post. See pricing.