An MCP server for Claude that returns contacts that don't bounce

Claude can already write the outreach. What it cannot do on its own is find a real person at a real company and know whether that mailbox still exists. TAPAC plugs into Claude as an MCP server and answers both in a single tool call.

Add it to Claude in one command

claude mcp add tapac -- npx -y @tapacapi/mcp

For Claude Desktop, or any client that reads a JSON config:

{
  "mcpServers": {
    "tapac": {
      "command": "npx",
      "args": ["-y", "@tapacapi/mcp"],
      "env": { "TAPAC_API_KEY": "your-free-key" }
    }
  }
}

Prefer not to install anything? The hosted streamable-HTTP endpoint is at https://tapacapi.com/mcp.

The two tools Claude gets

ToolWhat it does
tapac_find_contactsTakes industry, job_titles, company_size, location, source and limit, and returns contacts with SMTP-verified emails and their source.
tapac_statusServer version, key state and remaining quota — so Claude checks the budget before burning searches.

What it looks like in practice

You: “Find 20 marketing leads at 50–500 person SaaS companies in Germany and draft the first email.” Claude calls tapac_find_contacts, gets back names, titles, companies and verified addresses, then writes the message — no CSV export, no separate verifier, no human in the loop between finding and sending.

Why the verification matters to an agent

An agent that automates outreach on unverified rows just automates the damage to your sending domain.

Without a key, nothing breaks

Install it before you sign up for anything: tapac_status returns onboarding instead of an error, so you can list the tools, inspect the schema and decide afterwards. Keys are free at tapacapi.com/get-key.

Also works with the other clients

The same server runs in Cursor, Codex, Windsurf and any MCP-compatible client — the config block is identical, only the file it lives in changes. Details on the MCP page; machine-readable manifests (SKILL.md, AGENTS.md, llms.txt, plugin.json) are in the repo.

Where to go next

← Back to TAPAC