attest

Write an on-chain attestation (Ethereum Attestation Service on Base) that binds a call you paid for to the bytes you received: the tool slug, sha256 of the JSON response, the…

Write an on-chain attestation (Ethereum Attestation Service on Base) that binds a call you paid for to the bytes you received: the tool slug, sha256 of the JSON response, the settlement chain and transaction, the payer, the time served and the price, signed by this server's wallet. Give it the settlement transaction from the PAYMENT-RESPONSE (or Payment-Receipt) header of any settled call; the attestation UID and its public page on base.easscan.org come back.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.05 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x77065d81…16744121

URL

https://agent402.tools/api/attest

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

Seen

first 29 days ago · last 11 hr ago

67 free handshakes

Payment

Pays through

x402 · MPP evm

Offered on?

eip155:10, eip155:1329, Polygon, eip155:143, Arbitrum, eip155:42220, Avalanche, Robinhood Chain, Base USDC

Listed on?

Polygon, Arbitrum, Avalanche, Base

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.742 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by latency p95 · gap to 1.000 is 0.258: 0.087 uncertain ? + 0.170 short ? · 0.058 to B

How the composite of 0.742 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	0.15	0.000		0.000	−0.170	−0.030
liveness it answered at all	0.60	1.00	0.904		0.542	0	−0.058
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.742	gap to 1.000 = 0.258 · 0.170 short · 0.087 uncertain	0.742	−0.170	−0.087

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 × 0.904   liveness       
+ 0.200 × 1.000   price stability
= 0.742           → UNRATED: 64 of 30 paid calls      weights 2026.09.6 · 64 samples · seed cap_01M1RD9AC2AZFAZJ4ZNEDM74C4|2026-09-03T01:15:55.504Z|2026.09.6

Verify it yourselfnpx teppi-check https://agent402.tools/api/attestcurl -s https://api.teppi.xyz/v1/trust/cap_01M1RD9AC2AZFAZJ4ZNEDM74C4