{"uid":"cap_fTZ-GDAzTbkoghNvhDloW","slug":"x402-zadenworks-wcag-accessibility-checker-4b096dd5","name":"x402-zadenworks WCAG Accessibility Checker","description":"Fourteen pay-per-call web tools for AI agents, billed in USDC on Base with no account or API key. START WITH /audit -- one call returns a complete page health check (SEO + structured data + accessibility, optionally plus links and sitemap) with a single score and one worst-first findings list. The parts are also sold individually. SITE AUDIT: /seo (on-page SEO and meta tags), /links (broken links), /sitemap (robots.txt and XML sitemap crawlability), /structured (JSON-LD and social preview tags), /a11y (WCAG accessibility) -- each scored 0-100 with a prioritised issue list. READING: /read (clean markdown), /snap (screenshot, PDF or rendered HTML), /tables (every HTML table as structured JSON), /verify (does a claim actually appear on this page). MONITORING: /watch (has this page changed), /compare (what differs between two pages). Plus /rank (best x402 service for a task) and /batch (several operations behind one payment).","url":"https://x402-zadenworks.zaden-gaming.workers.dev/a11y","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","required":["urls"],"properties":{"urls":{"type":"array","items":{"type":"string"},"description":"Pages to scan (max 10)"}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"results":[{"url":"https://example.com/","grade":"B-","score":80,"issues":["2 of 4 image(s) are missing an \"alt\" attribute."],"severity":"critical","notChecked":["colour contrast","focus order","keyboard traps","ARIA state at runtime"],"imagesTotal":4,"duplicateIdCount":0,"hasLangAttribute":true,"imagesMissingAlt":2,"formFieldsMissingLabel":0}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_SX5kKztM39X8bQrcXaHip","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Scans one or more web pages for WCAG accessibility issues, returning a scored report with prioritized findings including missing alt text, missing form labels, duplicate IDs, and lang attribute presence.","exampleAgentPrompt":"Can you run a WCAG accessibility audit on https://example.com and tell me the score, letter grade, and what issues I need to fix first?","exampleUseCases":[{"title":"Pre-launch accessibility check","prompt":"Before we go live, can you scan https://myapp.io for accessibility issues and give me a prioritized list of what to fix — especially any missing alt text or form labels?"},{"title":"Audit multiple landing pages","prompt":"Please check these three pages for WCAG accessibility problems and score each one: https://brand.com/, https://brand.com/about, and https://brand.com/contact — I want to know which is worst."},{"title":"Verify compliance after redesign","prompt":"We just pushed a redesign to https://shop.example.com — can you run an accessibility audit and tell me if we introduced any new issues like missing image alt attributes or unlabeled form fields?"}],"resultDescription":"Returns a JSON array of per-URL results, each containing: a letter grade (e.g. B-), a numeric score 0-100, a list of prioritized accessibility issues with severity, counts for images missing alt text, form fields missing labels, and duplicate IDs, a boolean for lang attribute presence, and a list of checks not performed (e.g. colour contrast, keyboard traps, ARIA runtime state).","failureModes":["Invalid or unreachable URL returns an error for that entry","Exceeding 10 URLs in a single request may be rejected","Dynamic/JS-rendered content may not be fully evaluated (ARIA runtime state explicitly excluded)","Payment failure (insufficient USDC) blocks the request","Timeout on slow-loading pages may produce incomplete results"],"whenToPreferThis":"Choose this endpoint when you need a quick, scored WCAG accessibility snapshot of up to 10 pages without setting up an account or API key. It is ideal for automated pre-deployment checks, CI pipelines, or agent-driven audits where micropayment billing per call (0.01 USDC) is acceptable. Prefer the parent /audit endpoint if you also want SEO, broken links, and sitemap checks in one call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:44:38.498Z","isFirstParty":false}