Skip the install. Get this working in under 2 minutes.
Start a free trial on cloud.anythingmcp.com, add the Clearbit in one click, then point your AI client (Claude, ChatGPT, Copilot or Cursor) at the generated MCP endpoint. No Docker, no git clone, zero engineering experience required.
Summary
Enrich emails, domains and IPs via Clearbit (HubSpot Breeze Intelligence). 6 tools, Bearer auth. Marketing intelligence + technographics + firmographics.
Try asking
Example prompts for Clearbit
Click any prompt to copy it. Paste into Claude, ChatGPT, Cursor, Gemini, Copilot or OpenClaw to run it against this connector.
Claude is AI and can make mistakes. Please double-check responses.
💡 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 + ChatGPT
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:
- Sign in to https://dashboard.clearbit.com → API Keys (or for HubSpot Breeze: HubSpot Settings → Integrations → Breeze Intelligence → API).
- Copy the secret API key (prefixed with
sk_). - 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 ChatGPT
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 showsYOUR_SERVER_ID.
ChatGPT connects to MCP servers as custom apps in developer mode, available on paid plans (not on Free). On Business and Enterprise workspaces an admin may have to allow it first.
- In ChatGPT, open Settings → Security and login and turn on Developer mode.
- Go to chatgpt.com/plugins and click +.
- Enter a name and a short description, e.g. Name:
Clearbit. - Under Connection, enter the MCP server URL
https://cloud.anythingmcp.com/mcp/YOUR_SERVER_IDand create the connection. - When ChatGPT asks, sign in to AnythingMCP (OAuth) and allow access.
Available tools
| Tool | What it does |
|---|---|
clearbit_person_enrich | Enrich a person by email |
clearbit_company_enrich | Enrich a company by domain |
clearbit_combined_enrich | Combined person + company enrichment in one call by email |
clearbit_discovery_search | Search Clearbit's company database by filters (industry, size, location, tech, type) |
clearbit_reveal_by_ip | Reverse-IP lookup: given an IP, return the company it belongs to (B2B intent / website-visitor identification) |
clearbit_company_autocomplete | Autocomplete company names (no auth required, public) |
FAQ
Does the free ChatGPT plan work with custom MCP connectors? No. Custom MCP connections need developer mode, which is only on paid plans.
Next steps
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