x402 DNS Email Auth Checker for Claude.ai

dev.workers.microtools-x402.x402-dns-auth-checker/dns-auth-checker

Audit SPF, DKIM, DMARC, MX, BIMI, MTA-STS for a domain; score + grade. $0.003 USDC/call via x402.

client:Claude.ai transport:streamable-http tools:2

Install x402 DNS Email Auth Checker in Claude.ai

Settings → Connectors → Add custom connector

https://x402-dns-auth-checker.microtools-x402.workers.dev/mcp

Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs

What Claude.ai can do once it is connected

domain_auth_check
health

x402 DNS Email Auth Checker in other clients

Claude Code
Claude Desktop
Cursor
VS Code
Zed
Windsurf
Cline
Gemini CLI
Grok
ChatGPT
LangChain

x402 DNS Email Auth Checker MCP server