Marketplace · API · x402

fiatdock.com/v1/email/check

Is this email address worth sending to? Syntax, domain DNS (MX, then A/AAAA), disposable/role/free-provider lists, a typo suggestion (gmial.com -> gmail.com), a normalized form and a risk verdict with reasons. No SMTP probe: it vouches for the domain, never the mailbox. An invalid address is a paid verdict; a DNS failure is 502, not charged. Pay-per-call via x402. An empty body is answered for the published example address (name@example.com); send {"email":"…"} for any other address.

Endpointhttps://fiatdock.com/v1/email/check
Trust✓ Verified callable · 100% uptime over 1 checks · ~83 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0xeB12bB2f52EeD33DBa6A00774E48324032Fd87C6
methodPOST
last updated2026-11-12T07:05:33.728Z

Use it

Call it (an x402 client pays automatically)

curl -i https://fiatdock.com/v1/email/check
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-e45bbbdd4bc42849

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}

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