Use Domailfix with Gemini

What you can do

Connect Domailfix to Gemini and ask in plain words. Gemini uses your Domailfix account and credits.

• Verify an email: "Check if priya@company.com is valid."
• Verify a short list: "Verify these 10 addresses and tell me which ones bounce."
• Find a work email: "Find Rahul Mehta's email at company.com."
• Company email format: "What email format does company.com use?"
• Phone numbers: "Check if these phone numbers are valid mobiles."

Gemini web app (custom app)

Google lets some Gemini users add their own apps (MCP servers). At the moment Google offers this only on some plans and in some countries and languages, so the option may not appear in your account yet.

• Open gemini.google.com, then Settings & help → Connected Apps (or go to gemini.google.com/apps).
• Choose Add a custom app (it may be under the Other tab).
• Server URL: https://domailfix.com/mcp. Leave authentication on automatic and click Next.
• A Domailfix window opens: log in and click Allow. Turn the Domailfix app on, then ask in chat.

Once added on the web, the app also works in the Gemini mobile app.

Gemini CLI (free, for developers)

• Create an API key on your Domailfix account page: https://domailfix.com/account
• Add this to ~/.gemini/settings.json (or the project's .gemini/settings.json), with your key:

{
  "mcpServers": {
    "domailfix": {
      "httpUrl": "https://domailfix.com/mcp",
      "headers": { "Authorization": "Bearer YOUR_DOMAILFIX_API_KEY" }
    }
  }
}

• Start gemini and type /mcp to see the Domailfix tools. Then ask, for example "Use Domailfix to verify priya@company.com".

Gemini Enterprise (for companies)

An admin adds Domailfix once in the Google Cloud console: open the Gemini Enterprise app, choose Data stores → Create data store → Custom MCP Server, and enter the server URL https://domailfix.com/mcp. Then connect the data store to the app. Each person authorizes with their own Domailfix account the first time they use it.

Tools

• verify_email: check one address (1 credit; Unknown results are free).
• verify_emails: check up to 25 addresses at once.
• find_email: find a work email from a full name and company website (2 credits when found).
• find_email_format: see how a company writes its email addresses (half a credit).
• find_company_contacts: a company's public team emails, office phones and social pages (1 credit when found).
• verify_phone_numbers: check phone numbers: valid, type, country and network (5 credits each).
• start_bulk_verification, get_bulk_status, get_bulk_results: check a long list in the background and read the results.

All tools only read and check information. They never send email or messages to anyone.

Credits and privacy

Checks made through Gemini use your Domailfix credits, the same as on the website. Gemini cannot see your Domailfix password, payments or invoices. Read the Privacy Policy at https://domailfix.com/privacy

To disconnect, open https://domailfix.com/account and click Disconnect, or remove the app in Gemini. If you used an API key, create a new key on the account page to cut off the old one.

Help

Questions or problems: email privacy@achivix.com.