Email Deliverability CheckGET /email-check/check · x402 API by professorsausages
Email deliverability-signals check — RFC5322 syntax + live MX/SPF/DMARC (DoH) + disposable/role/free-provider/unicode flags. Signals, not an SMTP guarantee
What does this x402 API do?
Email Deliverability Check. This is an x402-gated GET API resource from professorsausages. The latest safe availability check could not reach the resource on 2026-08-24. The listing records $0.002 USD-denominated per request on Base. No settled paid call has been verified.
- Published price
- $0.002 USD-denominated per request
- Networks
- Base
- Latest evidence
- The latest safe availability check could not reach the resource on 2026-08-24
- Resource ID
- eda1a02e89b96a5ac6065b2c
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://x402.professorsausages.com/email-check/check?email=admin%40gmail.com", {
method: "GET",
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Observed in 402-index
Discovered through self-registered.
- Registry record checked
Registry health: unknown.
- Exact route checked
unreachable · UND_ERR_HEADERS_OVERFLOW
- Origin reachable
OPTIONS https://x402.professorsausages.com/ returned 405.
What evidence supports this listing?
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →
Which networks and payment options does it accept?
The normalized listing price is $0.002 USD-denominated per request. Raw protocol requirements remain visible below for implementation and audit use.