Domain Check is a Model Context Protocol (MCP) server: Free SPF, DKIM, DMARC, MX deliverability check with graded shareable reports, plus referral terms. In practice that means any MCP-compatible AI assistant can call Domain Check's tools directly — the model decides when to use them in a conversation or agent run.
It's a hosted (remote) server — point your client at https://guild.tradeuniquecapital.com/mcp and you're connected, with nothing to install locally. The current release is v1.0.0, published under the MIT license, with source at markolati85/agpc-domain-check on GitHub.
Domain Check is listed under Communication on mcp.site and works with any MCP client — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed and the rest of the ecosystem — using the install snippets below. If you maintain Domain Check for guild.tradeuniquecapital, claim this listing to verify ownership, earn the Verified badge, and keep the details current.