# PostLake Documentation · The Social Media API For AI Agents

> Markdown version of https://docs.postlake.dev/ . The canonical page for humans.
> PostLake is the social media API for AI agents: https://postlake.dev/llms.txt

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](https://postlake.dev/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.
](https://postlake.dev/quickstart)
 [
### Connect an AI agent →

Point Claude, ChatGPT or Cursor at the hosted MCP server and just ask it to post. No code.
](https://postlake.dev/mcp)

## 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](https://postlake.dev/pricing).