contact-verify

Verify an email address is deliverable - syntax validation plus MX record check on the domain.

Verify an email address is deliverable - syntax validation plus MX record check on the domain. Contact verification skill pack: one x402 payment runs 3 underlying tools (email-validate, dns-lookup, spf-check); partial-success per step.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.004 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x77065d81…16744121

URL

https://agent402.tools/api/skill/contact-verify

MCP server on this host: io.github.MikeyPetrillo/agent402

Seen

first 29 days ago · last 17 hr ago

54 free handshakes

Payment

Pays through

x402 · MPP evm, tempo

Offered on?

algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=, eip155:10, eip155:1329, Polygon, eip155:143, Arbitrum, eip155:42220, Avalanche, Robinhood Chain, Base USDC, Solana, stellar:pubnet, Tempo USDC.e

Listed on?

Polygon, Arbitrum, Avalanche, Base, Solana

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.707 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by latency p95 · gap to 1.000 is 0.293: 0.128 uncertain ? + 0.165 short ? · 0.093 to B

How the composite of 0.707 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	0.20	0.000		0.000	−0.159	−0.041
liveness it answered at all	0.60	0.99	0.845		0.507	−0.006	−0.087
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.707	gap to 1.000 = 0.293 · 0.165 short · 0.128 uncertain	0.707	−0.165	−0.128

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 × 0.845   liveness       
+ 0.200 × 1.000   price stability
= 0.707           → UNRATED: 52 of 30 paid calls      weights 2026.09.6 · 52 samples · seed cap_01M1RD9FGTYY5AHQ7QGTP1Q76T|2026-09-03T06:00:39.150Z|2026.09.6

Verify it yourselfnpx teppi-check https://agent402.tools/api/skill/contact-verifycurl -s https://api.teppi.xyz/v1/trust/cap_01M1RD9FGTYY5AHQ7QGTP1Q76T