Email Preflight MCP Server: Install & Setup

Install Email Preflight in Claude Code

Claude Code

claude mcp add --transport http email-preflight https://email-preflight-mcp.onrender.com/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "email-preflight": {
      "url": "https://email-preflight-mcp.onrender.com/mcp"
    }
  }
}

x402 v2 payment requests; relays compatible clients' signed payments to the existing product API.

Probably not entirely. The listing mentions pay-per-call, credits or a subscription. Check the provider for current pricing.

Remote. Hosted by the provider. You connect with a URL, nothing to install.

Run: claude mcp add --transport http email-preflight https://email-preflight-mcp.onrender.com/mcp

Br0ski777/email-verification-x402

Verify emails: syntax, MX records, disposable detection, quality score 0-100. x402 USDC.

romans-repos/elsas-verify

Daily Ed25519-signed security intelligence for AI-agent stacks; CVEs & advisories, paid via x402.

pcp183/email-verify

Check email addresses for syntax, MX and disposable domains. $0.0015/call via x402.

elkassabgi/hfdatalibrary

A growing family of free academic data libraries: finance, economics, and beyond (ElkassabgiData).

Son-of-Ultron/EmailIQ

Email intelligence MCP: MX/SPF/DKIM/DMARC, score, enrichment. x402 on emailiq.dev/mcp.

com.elements-live/elements-live

Research intensity for 118 elements and topics, ~10M papers. Free element scores; x402 pay-per-call.