Endpoint · otherPOSTx402render-u5vwpxpyua-uc.a.run.app/color-contrast

WCAG contrast ratio between two colours, with AA/AAA pass flags

UNRATEDDelisted

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.01 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x71c09a49…380ae347

URL

https://x402render-u5vwpxpyua-uc.a.run.app/color-contrast

Seen

first 35 days ago · last 26 days ago

30 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Score, from free handshakes onlyweights 2026.09.1

UN
RATED

0.441 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by liveness · gap to 1.000 is 0.559: 0.131 uncertain ? + 0.428 short ? · 0.009 to D

How the composite of 0.441 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	0.45	0.237		0.142	−0.329	−0.129
latency p95 it answered as fast as its class	0.20	0.51	0.497		0.099	−0.098	−0.002
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.441	gap to 1.000 = 0.559 · 0.428 short · 0.131 uncertain	0.441	−0.428	−0.131

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

The multiplication, written out

  0.600 × 0.237   liveness       
+ 0.200 × 0.497   latency p95    
+ 0.200 × 1.000   price stability
= 0.441           → UNRATED: 30 of 30 paid calls      weights 2026.09.1 · 30 samples · seed cap_01M1A59TJ9SW64JTMD65GJD5J6|2026-08-16T03:49:24.664Z|2026.09.1

Verify it yourselfnpx teppi-check https://x402render-u5vwpxpyua-uc.a.run.app/color-contrastcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A59TJ9SW64JTMD65GJD5J6