verify

Check whether email addresses are real and safe to send to.

Check whether email addresses are real and safe to send to. Verifies up to 25 addresses per call: syntax, domain MX/A record (including null-MX), disposable-domain, role-account, free-provider and typo checks. Does not perform SMTP/mailbox verification.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.005 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0xf1e6050f…0d1bedfe

URL

https://x402-tollbooth.onrender.com/api/verify

Seen

first 7 days ago · last 15 hr ago

12 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.465 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held back by sample size, not by the seller · gap to 1.000 is 0.535: 0.335 uncertain ? + 0.200 short ? · 0.185 to C

How the composite of 0.465 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	1.00	0.442		0.265	0	−0.335
latency p95 it answered as fast as its class	0.20	0.00	0.000		0.000	−0.200	0
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.465	gap to 1.000 = 0.535 · 0.200 short · 0.335 uncertain	0.465	−0.200	−0.335

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

The multiplication, written out

  0.600 × 0.442   liveness       
+ 0.200 × 0.000   latency p95    
+ 0.200 × 1.000   price stability
= 0.465           → UNRATED: 11 of 30 paid calls      weights 2026.09.6 · 11 samples · seed cap_01M3GP9BYZAKFHNFM4XHSVN99J|2026-09-03T19:06:19.953Z|2026.09.6

Verify it yourselfnpx teppi-check https://x402-tollbooth.onrender.com/api/verifycurl -s https://api.teppi.xyz/v1/trust/cap_01M3GP9BYZAKFHNFM4XHSVN99J