Scan a web page for WCAG accessibility issues. Works on any URL — deployed sites, localhost, staging. Returns the three-tier shape: issues (high-confidence violations safe to fix), incomplete (needs human review — gradient backgrounds, marketing imagery, axe-incomplete results, framer-motion pre-animation states), and a summary. Treat incomplete as questions, never auto-fix them.

Re-scan a specific element after applying an accessibility fix and confirm the violation is gone — closes the loop that find-only tools leave open. After you edit the code and serve it (deployed, staging, or http://localhost:3000), call this with the URL and the selector you fixed to get a machine-checked verified: true|false (DOM engines only — visual_audit findings and needs-review items are out of scope). Pass the WCAG criterion (e.g. "1.1.1") or axe rule id (e.g. "color-contrast") to check just that criterion; omit it to require the element be clean of ALL violations. A blocked page (bot-challenge / HTTP error) is reported as unverified, never a pass — verification fails closed. IMPORTANT: if your fix changed the element's class or id, the original selector may no longer match anything, which reads as verified — re-run scan_page or pass the updated selector to be sure. Pair with scan_page → generate_ai_fix → verify_fix for a full find-fix-verify cycle.

Kick off a FULL accessibility audit deliverable for a URL — a persistent, timestamped artifact, not an inline scan. Runs the server-side pipeline (axe + advanced checks + mobile viewports + annotated screenshots + optional agent spot-check) and produces a downloadable report and a formatted Excel workbook (Cover / Status / Barriers / ADA context sheets) stored durably. Returns immediately with an audit id; poll get_audit for progress and, when complete, download URLs. Use this when someone needs a durable artifact to attach as evidence of testing effort for a compliance officer or legal response — for iterating on code, use scan_page + verify_fix instead. REQUIRES A WEBABILITY ACCOUNT (runs paid server-side browser/AI work): authenticate via webability login or set WEBABILITY_API_KEY. Set includeAgent:true to add the (slower, paid) agentic manual-audit pass.

Check an audit started with start_audit: returns overall status, per-step progress (scan → viewports → screenshots → agent → excel → publish), and — once complete — a severity summary plus short-lived download URLs for the report (JSON) and the Excel workbook. Poll every ~15s while status is pending/running. Only the account that started an audit can read it.

Scan a multi-page user journey. Walks startUrl plus the required autoNavigate URLs sequentially (deterministic — one page fully rendered and scanned before the next), then returns ONE consolidated report with issues deduplicated across pages, each carrying the same fix payload / confidence / review flags as scan_page. Every requested URL gets an explicit outcome in pages[] (scanned / nav_failed / scan_failed / redirected_duplicate / duplicate_request / skipped_cap / blocked — bot-challenge, not a clean page) — a page is never silently dropped. Better than per-page scans for journeys (login → checkout etc). For a single page, use scan_page.

Detect which framework/stack a page uses (Tailwind, MUI, Bootstrap, WordPress, Next.js, plain CSS). Use before generate_ai_fix to get framework-appropriate code.

Generate framework-aware fix alternatives for a specific accessibility issue. For color contrast issues, returns 3 alternatives (minimal, brand-aligned, high contrast); brand palette is auto-extracted from the live URL using our scanner if brandColors is omitted. For label/ARIA issues, returns 1-2 alternatives. Each alternative includes ready-to-paste code for the detected framework.

Pixel-level accessibility audit using Claude vision. Catches issues that DOM scanners miss: icon contrast (1.4.11), focus visibility (2.4.7), "looks like a button but isn't" (4.1.2), text rendered as images (1.4.5), visual hierarchy mismatches. Takes a URL, opens it in a headless browser, screenshots, and runs vision-based detection. Complements scan_page — run both for full coverage. REQUIRES A WEBABILITY ACCOUNT (like start_audit — these are the paid, server-side tools; the DOM-based tools run free and local): authenticate via webability login or set WEBABILITY_API_KEY in your MCP server env before calling.

Find source files in the local project that contain a given CSS selector. Maps DOM selectors back to source code so you can edit the right file. Searches React/Vue/Svelte/HTML/PHP/Astro files.

Scan a raw HTML snippet for accessibility issues without serving it. Useful for code review, component snippets, or content from docs. Spins up a headless page, sets the HTML, and runs axe-core ONLY — lighter and faster than scan_page, but it skips the WebAbility detectors and HTML_CodeSniffer, and returns axe violations (with an incomplete count), not scan_page's three-tier issues/incomplete/summary shape.

List axe-core accessibility rules with optional tag filtering. Returns ruleId, description, help text, helpUrl, and tags for each rule. Useful for understanding what a WCAG criterion checks.

Check a foreground/background color pair against WCAG contrast thresholds. When it fails, suggests BRAND-aligned replacements — extracts the actual brand palette from a live URL using our scanner (CSS vars + most-used colors), or use a provided brandColors array. No url and no brandColors = ratio + pass/fail only.

Validate ARIA attribute + accessible name/role/value usage in an HTML snippet. Runs axe-core cat.aria and cat.name-role-value rules (aria-* attribute correctness, role validity, required parents/children, aria-hidden-focus, accessible names). Returns violations (high-confidence) and incomplete (needs human review, e.g. dangling ARIA references — do NOT auto-fix).

Browse past scans run through this MCP server. Every scan_page / flow_scan / scan_html / visual_audit / check_aria / verify_fix call is logged locally (~/.webability/scans; local installs only — the hosted server keeps no history). Without arguments, lists recent scans (when, what target, result summary). Pass id to retrieve the FULL stored result of one past scan, or filter to match a URL/tool substring.