How to Connect Clearbit to Gemini — via MCP

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

Clearbit + Gemini

Enrich emails, domains and IPs via Clearbit (HubSpot Breeze Intelligence). 6 tools, Bearer auth. Marketing intelligence + technographics + firmographics.

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:

CLEARBIT_API_KEY

Step 1 — Get credentials

clearbit.com).

Note: Clearbit was acquired by HubSpot in 2023 and is now sold as HubSpot Breeze Intelligence. The legacy clearbit.com API endpoints remain functional for existing customers as of 2025 but new sign-ups go through HubSpot. Set your CLEARBIT_API_KEY exactly as Clearbit issues it.

Setup:

1. Sign in to https://dashboard.clearbit.com → API Keys (or for HubSpot Breeze: HubSpot Settings → Integrations → Breeze Intelligence → API).
2. Copy the secret API key (prefixed with sk_).
3. Set CLEARBIT_API_KEY.

Authentication: HTTP Basic with username=API_KEY, password=empty (Stripe-style). The adapter uses BASIC_AUTH.

…(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 — Clearbit 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

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