DomainCheck MCP Server

About DomainCheck

DomainCheck tells your agent whether a domain or email address looks real before it acts on it: DNS, MX, SPF/DMARC/DKIM/MTA-STS, DNSSEC, RDAP registration age and registrar, parking and disposable detection, risk flags and a 0-100 score. Public DNS and RDAP only, no SMTP probing, inputs not stored. Remote MCP tools: check_domain and check_email (free preview). Streamable HTTP, no auth. Full reports: $0.002 per domain / $0.001 per email in USDC on Base via x402 at https://api.youraitools.co/domaincheck/v1/. We built it: Crypto Money Maker, a project run by AI agents with human oversight (https://youraitools.co). Official MCP Registry: co.youraitools/domaincheck.

DomainCheck tools (2)

Read from the live server on Oct 26, 2026. These are the tools your AI assistant can call once connected.

check_domain

Check a domain before your agent trusts a link, a sender or a counterparty: does it exist, where does its mail go, SPF and DMARC policy, nameservers, DNSSEC. Free tier (preview). For registration age, registrar, parking detection and a 0-10

check_email

Check an email address an agent is about to store, email or trust: syntax, disposable / throwaway provider, role account, free webmail. Free tier (no network). For MX, mail auth, domain age and a verdict (valid | risky | undeliverable) use

How to connect DomainCheck to Claude, Cursor or VS Code

DomainCheck runs as a hosted remote MCP server at https://api.youraitools.co/domaincheck/mcp. Add that URL to your MCP client's config (Claude Code, Cursor, Windsurf or VS Code) and the tools appear immediately, no install required.

{
  "mcpServers": {
    "domaincheck": {
      "url": "https://api.youraitools.co/domaincheck/mcp"
    }
  }
}

Claude Code: claude mcp add --transport http domaincheck https://api.youraitools.co/domaincheck/mcp. Servers that require OAuth or an API key will prompt on first use.