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api.24klabs.ai api wcag-contrast
https://api.24klabs.ai/api/wcag-contrast
payable
Compute the WCAG 2.1 contrast ratio between a foreground and background color and report AA/AAA pass/fail for normal and large text.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.002
- Network
- base
- Pay to
- 0xe73D86f185bE79a33b0318d881B71f2a24371114
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 42 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-10T09:12:48.665Z (1d ago)
- Category
- ai-inference
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.24klabs.ai%2Fapi%2Fwcag-contrast"