{"id":"1aeacfcb-b7ea-45ce-a7b0-aa27386bbe76","shortId":"fmp8bG","kind":"x402","title":"https://api.x402node.dev/color/contrast","tagline":"","description":"","tags":[],"capabilities":["x402-eip155:8453"],"categories":[],"synonyms":[],"warnings":[],"endpointUrl":"https://api.x402node.dev/color/contrast","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e","amount":"8000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","extra":{"feePayer":"2wKupLR9q6wXYppw8Gr2NvWxKBUqm4PPJKkQfoxHDBg4"},"payTo":"9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up","amount":"8000","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","maxTimeoutSeconds":300}]},"qualityScore":"0.000","qualityRationale":null,"verified":false,"liveness":"unknown","lastLivenessCheck":null,"agentReviews":{"count":0,"score_avg":null,"cost_usd_avg":null,"success_rate":null,"latency_p50_ms":null,"narrative_summary":null,"summary_updated_at":null},"enrichmentModel":null,"enrichmentVersion":1,"enrichedAt":null,"embedding":null,"createdAt":"2026-05-28T19:37:57.098Z","updatedAt":"2026-08-14T07:03:23.004Z","lastSeenAt":"2026-08-14T07:03:23.004Z","tsv":"'/color/contrast':3 'api.x402node.dev':2 'api.x402node.dev/color/contrast':1 'x402-eip155:8453'","prices":[{"id":"29410248-c47b-41f3-b267-97f2635cb8cb","listingId":"1aeacfcb-b7ea-45ce-a7b0-aa27386bbe76","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"8000","chain":"base","payTo":"0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://api.x402node.dev/color/contrast","extensions":{"bazaar":{"info":{"input":{"type":"http","method":"GET","queryParams":{"bg":"Background hex (required)","fg":"Foreground hex (required)"},"discoverable":true},"output":{"type":"object","required":["contrast_ratio","wcag_level"]}},"discoverable":true}},"description":"WCAG contrast ratio calculator / accessibility checker / color contrast / a11y / WCAG 2.1 AA AAA / text contrast / color blindness / readable text color. Calculate WCAG 2.1 contrast ratio between two colors and return pass/fail for AA/AAA at normal/large text sizes.","outputSchema":{"input":{"type":"http","method":"GET","queryParams":{"bg":"Background hex (required)","fg":"Foreground hex (required)"},"discoverable":true},"output":{"type":"object","required":["contrast_ratio","wcag_level"]}},"maxAmountRequired":"8000","maxTimeoutSeconds":60}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":60},"createdAt":"2026-05-28T19:37:57.098Z"}],"sources":[{"listingId":"1aeacfcb-b7ea-45ce-a7b0-aa27386bbe76","source":"x402_bazaar","sourceId":"https://api.x402node.dev/color/contrast","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-05-28T19:37:57.098Z","lastSeenAt":"2026-08-14T07:03:23.004Z"}],"details":{"listingId":"1aeacfcb-b7ea-45ce-a7b0-aa27386bbe76","quickStartSnippet":null,"exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","queryParams":{"bg":"Background color (optional)","fg":"Foreground color (required)"},"discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[],"useCases":[],"bestFor":[],"notFor":[],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-06-24T19:58:41.714Z"},"updatedAt":"2026-07-24T19:32:29.816Z"}}