Api Endpoint

Email DNS Preflight

Pay-per-call email syntax and public DNS/mail posture preflight. No mailbox-level SMTP claim.

Open interactive test console

Offering

Provider: email-dns-preflight-x402.copper-crate.workers.dev
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Infrastructure
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://email-dns-preflight-x402.copper-crate.workers.dev/v1/email/preflight
MIME type: Not provided
First seen: 2026-10-16T03:21:19.726Z
Last seen: 2026-10-16T03:21:19.726Z
Tags: Utility

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.001 USDC
Atomic price: 1000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "payTo": "0x513da013685f6b608b4a437d06377cad71425e80"
  }
]

Observed health

Status: Healthy
Latest latency: 364 ms
Average latency: 541 ms
HTTP status: 204
Last checked: 2026-11-02T11:06:47.874Z
Reachability: 100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{}

Output schema

null