Email Verification API MCP Server: Install & Setup

Install Email Verification API in Claude Code

Claude Code

claude mcp add --transport sse email-verification-api https://email-verification.api.klymax402.com/mcp

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

{
  "mcpServers": {
    "email-verification-api": {
      "url": "https://email-verification.api.klymax402.com/mcp"
    }
  }
}

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

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 sse email-verification-api https://email-verification.api.klymax402.com/mcp

pcp183/email-verify

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

io.github.tasuyoapp-ctrl/email-preflight

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

Son-of-Ultron/EmailIQ

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

romans-repos/elsas-verify

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

br.com.emissaoja/nfse

Issue Brazilian service invoices (NFS-e) via Emissor Nacional, no digital certificate

elkassabgi/hfdatalibrary

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