Install Installation in Gemini CLI

What you need first

Gemini CLI, installed.
Node.js, which gives the npx command the server starts with.
Your own values for YOUR_PROABONO_API_BASE,YOUR_PROABONO_BUSINESS_ID,YOUR_PROABONO_SEGMENT_REF,YOUR_PROABONO_AGENT_KEY,YOUR_PROABONO_API_KEY,YOUR_PROABONO_PORTAL_SECRET,YOUR_PROABONO_WEBHOOK_SECRET.

Steps

Open ~/.gemini/settings.json, or create it. For one project only, use .gemini/settings.json in that project.
Add this block. If the file already has mcpServers, add only the entry inside it.

{
  "mcpServers": {
    "mcp-installation": {
      "command": "npx",
      "args": ["-y", "@proabono/[email protected]"],
      "env": { "PROABONO_API_BASE": "YOUR_PROABONO_API_BASE", "PROABONO_BUSINESS_ID": "YOUR_PROABONO_BUSINESS_ID", "PROABONO_SEGMENT_REF": "YOUR_PROABONO_SEGMENT_REF", "PROABONO_AGENT_KEY": "YOUR_PROABONO_AGENT_KEY", "PROABONO_API_KEY": "YOUR_PROABONO_API_KEY", "PROABONO_PORTAL_SECRET": "YOUR_PROABONO_PORTAL_SECRET", "PROABONO_WEBHOOK_SECRET": "YOUR_PROABONO_WEBHOOK_SECRET" }
    }
  }
}

Replace YOUR_PROABONO_API_BASE,YOUR_PROABONO_BUSINESS_ID,YOUR_PROABONO_SEGMENT_REF,YOUR_PROABONO_AGENT_KEY,YOUR_PROABONO_API_KEY,YOUR_PROABONO_PORTAL_SECRET,YOUR_PROABONO_WEBHOOK_SECRET with your own values.
Save the file and restart Gemini CLI.

Check it worked

Ask Gemini CLI: List the tools of mcp-installation.

If it does not start

spawn npx ENOENT: Node.js is not on the PATH that Gemini CLI sees. Install it, or write the full path of npx in the config.
The server starts, but its tools fail: A YOUR_… placeholder is still in the config, or its value is wrong.
Nothing changes after a restart: The file is not valid JSON any more. Look for a missing comma where the block was added.

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