MCP servers · Mailgun · MCP server
Connect Gemini CLI to Mailgun
One line gives Gemini CLI your Mailgun account as tools: 8 endpoints, domains, validate email, send email, called with your own connection. No key in the prompt, a receipt for every call, revoke Gemini CLI's access alone any time.
Three steps
- Create a free 0n3 account and connect Mailgun. Paste a key or sign in; it lands in your vault, encrypted.
- Install 0n3 into Gemini CLI. Google's terminal agent. One command at user scope.
- Ask Gemini CLI: whoami. Then: "Send a message in Mailgun".
Install (user scope)
gemini mcp add --scope user --transport http 0n3 https://0n3.app/mcp -H "Authorization: Bearer <your 0n token>"
The line above carries a placeholder; 0n3.app/install mints a real key named for Gemini CLI and fills it in.
What Gemini CLI can then do in Mailgun
Domains · Manage sending domains7
Send a message
POST /{domain}/messagesList domains
GET /domainsGet a domain
GET /domains/{domain}List events
GET /{domain}/eventsGet stats
GET /{domain}/stats/totalList bounces
GET /{domain}/bouncesList unsubscribes
GET /{domain}/unsubscribesValidate email · Validate email addresses1
Validate email
GET /address/validateSend email · Send emails0
Send emails
Track events · Track email events0
Track email events
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