OpenAI Billing for Gemini CLI

io.github.mcp-dir/openai_billing-mcp

OpenAI organization usage and cost reporting through an admin API key connected by the user.

client:Gemini CLI transport:streamable-http tools:9

Install OpenAI Billing in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

{
  "mcpServers": {
    "openai_billing-mcp": {
      "httpUrl": "https://api.mcp.ai/p_openai_billing"
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs