---
title: "Connecting Gemini CLI · EenFactuurMaken.nl"
description: "Add the EenFactuurMaken.nl MCP server to Gemini CLI, with OAuth or with an API key."
url: "https://eenfactuurmaken.nl/en/docs/mcp/gemini-cli"
markdown_url: "https://eenfactuurmaken.nl/en/docs/mcp/gemini-cli.md"
language: "en-GB"
---

# Connecting Gemini CLI

Add the EenFactuurMaken.nl MCP server to Gemini CLI, with OAuth or with an API key.

## With OAuth

Put this in `~/.gemini/settings.json`:

```json
{
  "mcpServers": {
    "eenfactuurmaken": {
      "httpUrl": "https://eenfactuurmaken.nl/mcp"
    }
  }
}
```

Start Gemini CLI. Without headers, Gemini CLI starts the sign-in itself. If it doesn't, type `/mcp auth eenfactuurmaken`. Your browser opens so you can sign in to EenFactuurMaken.nl.

## With an API key

```json
{
  "mcpServers": {
    "eenfactuurmaken": {
      "httpUrl": "https://eenfactuurmaken.nl/mcp",
      "headers": { "Authorization": "Bearer efm_your_key" }
    }
  }
}
```

## Checking

Type `/mcp` in Gemini CLI. You see **eenfactuurmaken** with its tools. Then ask, for example: _"What's my turnover this quarter and how much VAT do I owe?"_

Last updated on 13 October 2026