ChatGPT

1. Before you start#

Sign in to First100 and choose a plan for the work you want your agent to do. Connect your social accounts before publishing; research does not require a social connection.

This setup uses browser sign-in. You will approve access to your First100 account without copying an API key.

2. Add First100#

In ChatGPT on the web, enable developer mode if your plan and workspace permissions allow custom MCP apps. Open Settings → Apps → Create (or Workspace settings → Apps → Create for admins). Name the app First100, paste the server URL below, and choose OAuth. Scan tools, complete the First100 sign-in and approval, then create the app. Select First100 from the tools menu in a new chat. If Create is missing, check with your workspace administrator.

https://firsthundred.app/api/mcp

For app-specific settings and version differences, see the official setup reference.

3. Check the connection#

Use First100 to check my account status and list my connected accounts.

The response should show your actual First100 plan and connected platforms. If tools do not appear, enable First100 for the active conversation and reload your client. If access is rejected, reconnect or update your key. See connection help if the issue continues.

4. Give your agent a goal#

Tell your agent what you built, who it is for, and the outcome you want. Start with research or a draft, then review the next action together.

I’m launching a tool for independent founders. Use First100 to find relevant communities and help me prepare a launch post. Show me the draft before publishing.

Explore what your agent can do for more ideas. Agents reading this page can use the agent guide for discovery and working instructions.