# MakeHybrid > Two LinkedIn APIs behind one account. **Unlimited** is $3 a month for as many > connected accounts as you like, and deliberately paced: a browser extension > drives a real LinkedIn session, so the account behaves like a person using > it. **Premium** is hosted — it signs in to LinkedIn for you, covers the full > LinkedIn surface, and costs $9 per connected account per month, $7 from 10 > accounts and $5 from 1,000. Both have a 30-day trial, and both are callable > from an AI assistant over MCP at a single URL, with nothing to install. Base URL: `https://makehybrid.com`. Send `X-API-KEY: mh_live_…` on every API request. Errors are JSON: `{"type":"errors/","status":,"detail":"…"}`. The catalog currently has 140 Premium operations and 93 Unlimited ones. ## Reference - [Full endpoint catalog](https://makehybrid.com/llms-full.txt): every operation on both plans as plain text — read this one if you read only one - [Premium API reference](https://makehybrid.com/premium-docs.html): Every operation on the hosted LinkedIn API, with its parameters, request and response. - [Unlimited API reference](https://makehybrid.com/docs.html): Every operation on the free paced LinkedIn API, driven by a browser extension. - [Machine-readable manifest](https://makehybrid.com/premium/mcp/manifest): the same catalog as JSON, which is what the MCP servers build their tools from ## Use it from an AI - MCP over one URL: `https://makehybrid.com/mcp/` — paste it wherever an assistant asks for an MCP server address. No install, no config file. The key comes from the dashboard, under “Connect your AI”. - Or run the published stdio server, `makehybrid-mcp`, with `MAKEHYBRID_API_KEY` set. ## Pages - [MakeHybrid](https://makehybrid.com/): What the two LinkedIn APIs are, what each costs, and how to start. - [Create an account](https://makehybrid.com/signup.html): Sign up for either plan. - [Sign in](https://makehybrid.com/login.html): Sign in to the dashboard. ## Optional - [Terms](https://makehybrid.com/terms.html): The terms of service. - [Privacy](https://makehybrid.com/privacy.html): What is stored, for how long, and what is never stored. MakeHybrid is not affiliated with LinkedIn Corporation.