is-email-shape

Validate email shape (not mailbox existence).

Validate email shape (not mailbox existence). Call when you cheaply reject obvious non-emails before enrichment. Returns valid boolean for $0.001 USDC via x402 on Base. Shape only—not MX, SMTP, or ownership proof. No network, no keys, no retention. Results are advisory; the caller owns budgets, auth, and production controls.

UNRATEDDelisted

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?

0x9f8bd987…175e73a2

URL

https://api.delx.ai/api/v1/x402/is-email-shape

MCP server on this host: io.github.davidmosiah/delx-mcp-a2a

Seen

first 34 days ago · last 28 days ago

28 free handshakes

Payment

Pays through

x402 · MPP tempo

Offered on?

Base USDC, Solana, Tempo USDC.e

Listed on?

Base, Solana

Score, from free handshakes onlyweights 2026.09.1

UN
RATED

0.701 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 0.299: 0.169 uncertain ? + 0.130 short ? · 0.099 to B

How the composite of 0.701 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	0.35	0.189		0.038	−0.130	−0.032
liveness it answered at all	0.60	1.00	0.772		0.463	0	−0.137
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.701	gap to 1.000 = 0.299 · 0.130 short · 0.169 uncertain	0.701	−0.130	−0.169

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

The multiplication, written out

  0.200 × 0.189   latency p95    
+ 0.600 × 0.772   liveness       
+ 0.200 × 1.000   price stability
= 0.701           → UNRATED: 27 of 30 paid calls      weights 2026.09.1 · 27 samples · seed cap_01M1A5A909Z40MB05F4NV6KK1J|2026-08-14T17:46:29.774Z|2026.09.1

Verify it yourselfnpx teppi-check https://api.delx.ai/api/v1/x402/is-email-shapecurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5A909Z40MB05F4NV6KK1J