preflight

Static accessibility (WCAG 2.2) check of a UI markup fragment for JSX, TSX, Vue, Angular or HTML.

Static accessibility (WCAG 2.2) check of a UI markup fragment for JSX, TSX, Vue, Angular or HTML. Detects missing image alt, unlabeled form controls, buttons and links with no accessible name, skipped heading levels, invalid ARIA, non-interactive click handlers, duplicate ids, positive tabindex and low static colour contrast. Returns a pass, caution or block verdict with per-finding WCAG criterion, element and line. Accessibility indicators, not a legal compliance guarantee.

UNRATEDDelisted

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.02 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0xf22e558a…8ddff493

URL

https://api.agentstools.dev/a11y/preflight

Seen

first 34 days ago · last 18 days ago

45 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Polygon, Arbitrum, Base, Solana

Disagrees with the offer

Score, from free handshakes onlyweights 2026.09.4

UN
RATED

0.819 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by latency p95 · gap to 1.000 is 0.181: 0.083 uncertain ? + 0.098 short ? · 0.081 to A

How the composite of 0.819 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	0.51	0.503		0.101	−0.098	−0.001
liveness it answered at all	0.60	1.00	0.863		0.518	0	−0.082
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.819	gap to 1.000 = 0.181 · 0.098 short · 0.083 uncertain	0.819	−0.098	−0.083

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

The multiplication, written out

  0.200 × 0.503   latency p95    
+ 0.600 × 0.863   liveness       
+ 0.200 × 1.000   price stability
= 0.819           → UNRATED: 45 of 30 paid calls      weights 2026.09.4 · 45 samples · seed cap_01M1A5A3A1Z21A94942565XPD5|2026-08-23T21:20:07.509Z|2026.09.4

Verify it yourselfnpx teppi-check https://api.agentstools.dev/a11y/preflightcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5A3A1Z21A94942565XPD5