attest

Signed settlement attestation: we make a REAL x402 purchase from your target endpoint (up to $0.1), grade the delivered response against its advertised schema, and return an…

Signed settlement attestation: we make a REAL x402 purchase from your target endpoint (up to $0.1), grade the delivered response against its advertised schema, and return an EIP-191-signed attestation embedding the on-chain USDC receipt. Proof-of-real-delivery for directories, reputation systems and sellers.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.25 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x9a8dfbe7…0d5d5767

URL

https://numberintel.dev/v1/attest

Seen

first 15 days ago · last 14 hr ago

27 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_01M2W3390T85AD4Y1TSHBE9F3V|2026-08-31T07:43:36.905Z|2026.09.6

Verify it yourselfnpx teppi-check https://numberintel.dev/v1/attestcurl -s https://api.teppi.xyz/v1/trust/cap_01M2W3390T85AD4Y1TSHBE9F3V