check

Is this email address worth sending to?

Is this email address worth sending to? Syntax, domain DNS (MX, then A/AAAA), disposable/role/free-provider lists, a typo suggestion (gmial.com -> gmail.com), a normalized form and a risk verdict with reasons. No SMTP probe: it vouches for the domain, never the mailbox. An invalid address is a paid verdict; a DNS failure is 502, not charged. Pay-per-call via x402. An empty body is answered for the published example address ([email protected]); send {"email":"…"} for any other address.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.001 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x02752dd7…fb1d25a6

URL

https://fiatdock.com/v1/email/check

MCP server on this host: com.fiatdock/fiatdock-mcp

Seen

first 12 days ago · last 14 hr ago

21 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.624 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by latency p95 · gap to 1.000 is 0.376: 0.176 uncertain ? + 0.200 short ? · 0.026 to C

How the composite of 0.624 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	0.707		0.424	0	−0.176
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.624	gap to 1.000 = 0.376 · 0.200 short · 0.176 uncertain	0.624	−0.200	−0.176

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 × 0.707   liveness       
+ 0.200 × 1.000   price stability
= 0.624           → UNRATED: 21 of 30 paid calls      weights 2026.09.6 · 21 samples · seed cap_01M33T7V3KHB30TAHNAFR5V3PE|2026-09-04T15:03:00.808Z|2026.09.6

Verify it yourselfnpx teppi-check https://fiatdock.com/v1/email/checkcurl -s https://api.teppi.xyz/v1/trust/cap_01M33T7V3KHB30TAHNAFR5V3PE