Endpoint · computePOSTapi.vextorium.com/color-contraste-pago

Convert a color between HEX, RGB, HSL, HSV and CMYK and, given a background, compute the WCAG 2.x contrast ratio with AA/AAA pass flags; without background, suggests black or…

Convert a color between HEX, RGB, HSL, HSV and CMYK and, given a background, compute the WCAG 2.x contrast ratio with AA/AAA pass flags; without background, suggests black or white text.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.003 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0xb9f06d27…74b71acf

URL

https://api.vextorium.com/color-contraste-pago

MCP server on this host: com.vextorium.api/vextorium

Seen

first 1 day ago · last 12 hr ago

2 free handshakes

Payment

Pays through

x402

Offered on?

eip155:10, Arc, Base USDC, Solana

Listed on?

Base, Solana

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.400 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 0.600: 0.600 uncertain ? + 0.000 short ? · 0.050 to D

How the composite of 0.400 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	1.00	0.000		0.000	0	−0.600
latency p95 it answered as fast as its class	0.20	1.00	1.000		0.200	0	0
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.400	gap to 1.000 = 0.600 · 0.000 short · 0.600 uncertain	0.400	−0.000	−0.600

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

The multiplication, written out

  0.600 × 0.000   liveness       
+ 0.200 × 1.000   latency p95    
+ 0.200 × 1.000   price stability
= 0.400           → UNRATED: 2 of 30 paid calls      weights 2026.09.6 · 2 samples · seed cap_01M404SP2Q80DJSGF8FJHYKYZC|2026-09-04T00:53:45.759Z|2026.09.6

Verify it yourselfnpx teppi-check https://api.vextorium.com/color-contraste-pagocurl -s https://api.teppi.xyz/v1/trust/cap_01M404SP2Q80DJSGF8FJHYKYZC