AgentData MCP Server

Free company data for AI agents, as MCP tools. AgentData profiles companies from the public web: tech stacks, web signals (pricing page, free trial, API docs, careers), email addresses with their verification status, people with titles, and switch signals (who just dropped or adopted a tool).

Works with Claude, Claude Code, ChatGPT, Codex, Gemini, Cursor, Windsurf, VS Code, GitHub Copilot, Zed, Cline and any other MCP client.

Quick start

No key is needed to look up a company's public profile, search companies, browse technologies or read switch signals. Emails and people need a free API key (1,000 contact reveals a day, no card): sign up at agentdata.run/signup and copy the key from agentdata.run/settings.

Claude (claude.ai, Desktop, mobile)

Settings, Connectors, Add custom connector, then paste:

https://mcp.agentdata.run/mcp

No sign-in: the company, technology and signal tools work straight away.

Claude Code

claude mcp add agentdata -- npx -y agentdata-mcp-server --api-key YOUR_API_KEY

Claude Desktop, Cursor, Windsurf, VS Code, Cline

Add to the client's MCP config (claude_desktop_config.json, .cursor/mcp.json, mcp.json):

{
  "mcpServers": {
    "agentdata": {
      "command": "npx",
      "args": ["-y", "agentdata-mcp-server", "--api-key", "YOUR_API_KEY"]
    }
  }
}

Leave out --api-key to run anonymously (company profiles, technologies and signals; no emails or people).

Hosted (no install)

https://mcp.agentdata.run/mcp

Streamable HTTP. Send Authorization: Bearer YOUR_API_KEY for emails and people; without a header it serves the anonymous tools. In Claude Code:

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

Tools

Tool	What it returns	Cost	Key
lookup_company	One domain's record: company, tech stack (first and last seen), signals, email pattern. With a key, also email addresses and people	none without a key; with a key 1 reveal per domain per 30 days	no
search_companies	Companies by name or by sector, size (estimate), b2b/b2c, model, technology, country	none	no
get_technologies	The technology index, or companies using one technology	none	no
get_signals	Companies that added, removed or switched a tool; growth and hiring changes	none	no
find_people	People by title, seniority, department, company filters	1 reveal per company in the response	yes
get_person	One person by id, with email	1 reveal (free if the company was revealed in the last 30 days)	yes
check_usage	Plan and what is left today	none	no

Every response ends with a usage line (reveals, requests and companies left), so an agent can pace itself. A domain that has not been profiled yet is crawled on request and answers "retry in about two minutes" without charging. Without a key, find_people and get_person are not listed.

Limits

	Anonymous	Free key	Pro ($99 a year)
Contact reveals a day	none	1,000	10,000
Requests per 5 hours	300	5,000	25,000
Requests a second	2	5	20
Distinct companies a day	200	5,000	25,000

Nothing else is metered. Details at agentdata.run/pricing.

Example prompts

• "Which SaaS companies use Intercom? Give me small ones with a pricing page."
• "Look up linear.app: tech stack, and who runs engineering."
• "Who dropped Zendesk in the last 30 days?"
• "Find heads of sales at fintech companies that use HubSpot, with email addresses."
• "How many contact reveals do I have left today?"

Run from source

npm install
npm run build
node dist/index.js --api-key YOUR_API_KEY      # stdio
node dist/index.js --http --port 3001          # Streamable HTTP on POST /mcp, 127.0.0.1 only
node dist/index.js --help

AGENTDATA_API_KEY, PORT and HOST work as environment variables. npm run inspect opens the MCP Inspector.

The HTTP server binds to 127.0.0.1 by default and only answers local pages, so a key you start it with cannot be used by other sites or other machines. --host 0.0.0.0 makes it public; in that mode the startup key is ignored and every caller must send its own Authorization: Bearer key.

Links

• Website: agentdata.run
• How it works: agentdata.run/how-it-works
• API docs: agentdata.run/docs
• The data, as it is: agentdata.run/data
• Guide: Claude Code for sales prospecting, step by step
• How it compares: the best MCP servers for sales, 12 compared

MIT licence.