Side-by-side comparison of two Model Context Protocol servers — install paths, tools, quality signals, and directory engagement so you can pick the right one for Claude, Cursor, and other MCP clients.
Send physical mail with Solana payments — AI agents can compose, price, and send letters and postcards via cryptocurrency.
The most complete Resend email MCP — full API coverage (75 tools) plus a unique debug/diagnostics layer: deliverability analysis, DNS troubleshooting, email inspection, bounce explanation, and account audit. npx -y resend-email-mcp.