How to Connect Gemini CLI and Antigravity to Chatfuel

Gemini CLI and Antigravity connect to Chatfuel through the Chatfuel MCP server. Gemini CLI adds it with gemini mcp add, Antigravity reads it from ~/.gemini/config/mcp_config.json, and both then sign in with your Chatfuel account.

How to connect Gemini CLI

1. Run this command to add the developer server with the full Chatfuel GraphQL API:

   gemini mcp add --scope user --transport http chatfuel-api https://mcp.chatfuel.com/panel/api

2. Start Gemini CLI and run /mcp auth chatfuel-api to sign in to Chatfuel.

For the ready-made tools for everyday bot management, add chatfuel with https://mcp.chatfuel.com/panel the same way and run /mcp auth chatfuel. The two servers are separate connections, as explained in MCP or API MCP: which Chatfuel link to use.

How to connect Antigravity

1. Add the server to ~/.gemini/config/mcp_config.json:

   {
     "mcpServers": {
       "chatfuel-api": { "serverUrl": "https://mcp.chatfuel.com/panel/api" }
     }
   }

2. In Antigravity, open Agent settings → Customizations, click Authenticate next to the server and sign in to Chatfuel.

The same steps work in the Antigravity CLI and IDE.

How to connect with a CLI token

If the browser sign-in isn't available, pass a Chatfuel CLI token in a header. Gemini CLI:

gemini mcp add --scope user --transport http --header "Authorization: Bearer <token>" chatfuel-api https://mcp.chatfuel.com/panel/api

Antigravity, in ~/.gemini/config/mcp_config.json:

{
  "mcpServers": {
    "chatfuel-api": {
      "serverUrl": "https://mcp.chatfuel.com/panel/api",
      "headers": { "Authorization": "Bearer <token>" }
    }
  }
}

Replace <token> with your token and keep it secret. Where to create it is in Chatfuel MCP sign-in, read-only access and CLI token.

What can I ask Gemini CLI or Antigravity?

Examples:

• "Show me my bots and which ones have AI turned on."
• "What appointments do I have this week?"
• "Find the GraphQL query that lists my bot's chats and run it."

More requests are in Chatfuel MCP example prompts.

Common issues

Gemini CLI says the server is disconnected or unauthenticated

Run /mcp auth chatfuel-api and sign in to Chatfuel again. The sign-in may have expired or been revoked in Connected apps in the Chatfuel dashboard.

Antigravity doesn't show the Chatfuel server

Check that ~/.gemini/config/mcp_config.json is valid JSON and uses the serverUrl key, then reopen Agent settings → Customizations.