Endpoint · computePOSTx402.agentutility.ai/email-deliverability

Checks email deliverability by validating address format, MX reachability, temp-mail risk, role mailbox risk, and SPF/DMARC/DKIM authentication records without contacting the…

Checks email deliverability by validating address format, MX reachability, temp-mail risk, role mailbox risk, and SPF/DMARC/DKIM authentication records without contacting the recipient mailbox. Use it as an email deliverability API, deliverability score, or inbox readiness domain check.

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?

0x6c0752c0…9ebb5621

URL

https://x402.agentutility.ai/email-deliverability

Seen

first 34 days ago · last 11 hr ago

76 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

0.545 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by liveness · gap to 1.000 is 0.455: 0.084 uncertain ? + 0.371 short ? · 0.105 to C

How the composite of 0.545 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	0.71	0.575		0.345	−0.171	−0.084
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		0.545	gap to 1.000 = 0.455 · 0.371 short · 0.084 uncertain	0.545	−0.371	−0.084

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

The multiplication, written out

  0.600 × 0.575   liveness       
+ 0.200 × 0.000   latency p95    
+ 0.200 × 1.000   price stability
= 0.545           → UNRATED: 62 of 30 paid calls      weights 2026.09.6 · 62 samples · seed cap_01M1A59VBMF0M2WMDAKVPCZ95P|2026-08-30T15:01:26.071Z|2026.09.6

Verify it yourselfnpx teppi-check https://x402.agentutility.ai/email-deliverabilitycurl -s https://api.teppi.xyz/v1/trust/cap_01M1A59VBMF0M2WMDAKVPCZ95P