How to Connect Hunter.io to Gemini — via MCP

💡 No install? Use cloud.anythingmcp.com directly. Sign in, click Connectors → Hunter.io, paste your credentials, mint an MCP API key — done. No Docker, no git clone, no local server.

Hunter.io + Gemini

Find and verify email addresses via Hunter.io. 7 tools for domain search, email finder, email verifier, account stats. Bearer-token / query-key auth.

Prerequisites

See the full setup instructions baked into the connector (visible in the in-app store when you select the connector). The required environment variables for this connector are:

HUNTER_API_KEY

Step 1 — Get credentials

io API v2 (hunter.io/api-documentation/v2).

Setup:

1. Sign in to https://hunter.io → top-right avatar → API → API Keys.
2. Copy the key. Set HUNTER_API_KEY.

Authentication: query-string ?api_key=... on every call (QUERY_AUTH). Hunter also accepts the API key in an X-API-Key header but query-string is the documented default.

Credits model: every request consumes credits per your plan. domain_search is the most expensive (returns up to 100 emails per call); email_verifier and email_finder are 1 credit each. email_count and account are FREE (don't deduct).

…(continued in the in-app connector instructions)

Step 2 — Install the adapter

curl -fsSL https://raw.githubusercontent.com/HelpCode-ai/anythingmcp/main/docker-compose.quickstart.yml -o docker-compose.yml
printf 'JWT_SECRET=%s\nENCRYPTION_KEY=%s\n' "$(openssl rand -hex 32)" "$(openssl rand -hex 32)" > .env
docker compose up -d

Step 3 — Add the connector in Gemini

Your server URL: in AnythingMCP, open MCP Servers → the server this connector is on, and copy its URL (https://cloud.anythingmcp.com/mcp/…). Use it wherever this guide shows YOUR_SERVER_ID.

Gemini CLI reads MCP servers from ~/.gemini/settings.json (or %APPDATA%\gemini\settings.json on Windows). Add:

{
  "mcpServers": {
    "anythingmcp": {
      "httpUrl": "https://cloud.anythingmcp.com/mcp/YOUR_SERVER_ID",
      "headers": { "X-API-Key": "YOUR_MCP_API_KEY" }
    }
  }
}

1. Get your MCP API key from AnythingMCP → MCP Servers → your server → API keys.
2. Save the file and restart gemini.
3. Run /mcp inside the Gemini CLI — Hunter.io should be listed as available.
4. Vertex AI Studio: pass https://cloud.anythingmcp.com/mcp/YOUR_SERVER_ID to the tools array of your request with the same X-API-Key header.

Available tools

FAQ

Does Gemini 1.5 Pro or 2.x support MCP? Yes — Gemini CLI ≥ 0.4 and Vertex AI tools API both accept MCP httpUrl connectors with custom headers.

Next steps

• Connector landing page
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