Connector guide2-minute read6 MCP toolsEN · DE · IT

How to Connect Clearbit to Cursor — via MCP

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

HCBy HelpCode teamUpdated 2 min read Open source on GitHub

No credit card · 7-day trial · Self-host alternative available

MCP connector

Clearbit

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

Tools

6

Region

INTL

Category

enrichment

Authentication

Basic Auth

Required env vars

CLEARBIT_API_KEY
Install in one click on Cloud

7-day free trial · No credit card

  • 7-day free trial
    No credit card required
  • GDPR & SOC 2 ready
    EU data residency, audit logs
  • Open-source on GitHub
    Open source AGPL-3.0
  • Works with ChatGPT, Claude, Gemini
    Any MCP-compatible client

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.

Start free trial

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.

Clearbit · live via MCP
Share
Opus 4.7

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 + Cursor

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.comAPI 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

git clone https://github.com/HelpCode-ai/anythingmcp.git
cd anythingmcp && docker compose up -d

Step 3 — Add the connector in Cursor

Cursor reads MCP servers from ~/.cursor/mcp.json. Add this entry:

{
  "mcpServers": {
    "anythingmcp": {
      "url": "https://cloud.anythingmcp.com/mcp",
      "headers": { "Authorization": "Bearer YOUR_MCP_API_KEY" }
    }
  }
}
  1. Get your MCP API key from AnythingMCP → Profile → MCP API Keys → New Key.
  2. Save the file and restart Cursor.
  3. Open Cursor → Settings → MCP to verify Clearbit is listed and "Connected".
  4. Start chatting — all Clearbit tools are now invokable.

Available tools

ToolWhat it does
clearbit_person_enrichEnrich a person by email
clearbit_company_enrichEnrich a company by domain
clearbit_combined_enrichCombined person + company enrichment in one call by email
clearbit_discovery_searchSearch Clearbit's company database by filters (industry, size, location, tech, type)
clearbit_reveal_by_ipReverse-IP lookup: given an IP, return the company it belongs to (B2B intent / website-visitor identification)
clearbit_company_autocompleteAutocomplete company names (no auth required, public)

FAQ

Does Cursor support custom MCP servers on the free tier? Yes — MCP is available on Hobby, Pro and Business plans.

Next steps

Was this guide helpful?

Ready to ship

Your Clearbit agent is one click away.

Install the connector, paste the key, prompt Cursor. Free for 7 days, no credit card.

Related guides