First100
Go-to-market tools for AI agents: schedule and publish posts on X, LinkedIn, Threads and Bluesky through official APIs, audit a site for Google and AI search, read Search Console, track rankings and AI answers, and send email from your own mailbox. Remote server with OAuth or API key.
Hosted MCP Server
npx add-mcp 'https://firsthundred.app/api/mcp'Installs into Claude Code, Codex, Cursor and more
Documentation
Start here
Connect your agent
Choose your agent, add First100, and check your connection.
Your first week
Brand, positioning, watchlist, first posts, first review. In order.
See what’s possible
Explore the work you can hand to your agent.
How does it work?
Add First100 to your preferred MCP client with browser sign-in or your API key. Your agent discovers the available tools and learns how to use them directly from the server.
Your agent
Claude, Claude Code
ChatGPT, Codex
Cursor
Any MCP client
First100 53 tools over one MCP connection: brand memory, scheduling, search data, publishing, workflows
Where it lands
Social posts
Your blog
Search and AI answers
Email from your mailbox
Your agent decides and writes; First100 holds the brand, the accounts and the data, and carries out what you approve.
Use your First100 account to manage connections, your key, and billing. Give instructions and review the work inside your agent.
Start with a specific outcome, such as finding communities for a launch or preparing next week’s posts. Your agent can gather context, show you proposed work, and carry out the actions you authorize.
Let your agent take it from here
Use First100 to check my connected accounts, then help me plan my next launch. Ask me for any missing context and show me the content before publishing.
For an agent reading these docs, start with the agent guide or the plain-text index.