AgentData MCP server

Customer lists of B2B software for AI agents. Ask who uses a technology (HubSpot, Zendesk, Stripe, Shopify and thousands more) and get the companies, each with how we found it, in the website's code or its public DNS records, and when we first and last saw it. Also: the companies that just started using a technology, one company's technologies grouped by category, and CSV downloads of the lists on your plan.

Website: useagentdata.com · Docs: useagentdata.com/docs/mcp

Connect

The server is hosted at https://mcp.useagentdata.com/mcp and needs an AgentData account.

• Claude (claude.ai, Desktop, mobile): Settings, Connectors, Add custom connector, paste the URL, then Connect. A page on useagentdata.com opens: sign in, or paste your API key.
• ChatGPT: add AgentData from the plugin directory, then Connect.
• Claude Code:

  claude mcp add --transport http agentdata https://mcp.useagentdata.com/mcp
  

  or, with your key and no sign-in step:

  claude mcp add --transport http agentdata https://mcp.useagentdata.com/mcp --header "Authorization: Bearer YOUR_API_KEY"
  

• Cursor and other clients: the URL with an Authorization: Bearer YOUR_API_KEY header.
• Local (stdio) clients:

  npx agentdata-mcp-server --api-key YOUR_API_KEY
  

  The package is a small bridge: each message goes to the hosted server with your key.

Your API key is in your account settings at useagentdata.com/app/settings#api. Generating a new key disconnects anything that uses the old one. Apps you connected by signing in are listed under Connected apps on the same page.

Tools

Tool	What it does
find_technologies	Find a technology by name or category: its exact name, category, how many companies use it, whether it is on your lists
get_customer_list	The companies using a technology, newest first, with how and when it was found and company details. Every company for the technologies on your lists, with filters; the first companies for any other
get_new_customers	Companies that recently started using a technology (7, 30 or 90 days), or across your lists
lookup_company	One company by domain: what it does and every technology found on it, grouped by category; with a plan, company contacts
add_to_lists	Add a technology to your lists, which unlocks its full customer list
download_list	Start a CSV download of a list on your lists (previews the size first)
check_usage	Your plan, lists, download records left and daily limits

Plans, lists and limits are the same as on the website: see useagentdata.com/pricing. Only downloads use records; browsing a list counts against the daily browsing limit.

Development

npm install
npm run build
npm run e2e        # the HTTP server and the stdio bridge against a local mock of the website

The hosted server needs MCP_V3_SECRET (the same value as on the website's hosting) and reads the website at https://useagentdata.com; AGENTDATA_API_URL, AGENTDATA_ISSUER and MCP_RESOURCE override the addresses for tests.

Licence

MIT