validate

6 email validation checks in one call — syntax (RFC 5322), MX record verification, disposable detection (5,000+ domains), free provider identification, role-based address…

6 email validation checks in one call — syntax (RFC 5322), MX record verification, disposable detection (5,000+ domains), free provider identification, role-based address detection (admin@, info@), and typo suggestion. Returns a 0-1 confidence score with detailed per-check results. POST method protects email addresses from access logs. No API keys, no multiple service integrations needed. Accepts USDC payments on Base and Solana

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.01 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x29322ea7…902e4f60

URL

https://mailcheck.hugen.tokyo/mailcheck/validate

Seen

first 29 days ago · last 3 days ago

68 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC, Solana

Listed on?

Base, Solana

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.744 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by latency p95 · gap to 1.000 is 0.256: 0.056 uncertain ? + 0.200 short ? · 0.056 to B

How the composite of 0.744 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
latency p95costs the most it answered as fast as its class	0.20	0.00	0.000		0.000	−0.200	0
liveness it answered at all	0.60	1.00	0.907		0.544	0	−0.056
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.744	gap to 1.000 = 0.256 · 0.200 short · 0.056 uncertain	0.744	−0.200	−0.056

Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check

The multiplication, written out

  0.200 × 0.000   latency p95    
+ 0.600 × 0.907   liveness       
+ 0.200 × 1.000   price stability
= 0.744           → UNRATED: 66 of 30 paid calls      weights 2026.09.6 · 66 samples · seed cap_01M1RDA6548ZQEWTKGTEHEWCD9|2026-09-03T11:14:02.080Z|2026.09.6

Verify it yourselfnpx teppi-check https://mailcheck.hugen.tokyo/mailcheck/validatecurl -s https://api.teppi.xyz/v1/trust/cap_01M1RDA6548ZQEWTKGTEHEWCD9