Endpoint · computePOSTapi.zfinia.com /x402/v1/accessibility-contrast-calculator
Calculate WCAG 2.x sRGB contrast for one caller-supplied colour pair; no interface-wide accessibility claim is made.
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?
URL
https://api.zfinia.com/x402/v1/accessibility-contrast-calculator
MCP server on this host: com.zfinia.api/intelligence
Seen
first 35 days ago · last 11 days ago
52 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.377 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by liveness · gap to 1.000 is 0.623: 0.234 uncertain ? + 0.389 short ? · 0.073 to D
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 0.68 | 0.295 | 0.177 | −0.189 | −0.234 | |
| latency p95 it answered as fast as its class |
0.20 | 0.00 | 0.000 | 0.000 | −0.200 | 0 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.377 | gap to 1.000 = 0.623 · 0.389 short · 0.234 uncertain | 0.377 | −0.389 | −0.234 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.295 liveness
+ 0.200 × 0.000 latency p95
+ 0.200 × 1.000 price stability
= 0.377 → UNRATED: 45 of 30 paid calls weights 2026.09.6 · 45 samples · seed cap_01M1A59WB7P5MASNCV0NXA5STG|2026-08-27T02:54:20.335Z|2026.09.6
Verify it yourself
npx teppi-check https://api.zfinia.com/x402/v1/accessibility-contrast-calculatorcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A59WB7P5MASNCV0NXA5STG