snayyar00/webability-mcp
An MCP server for web accessibility testing that enables scanning, auditing, and fixing WCAG, ADA, and other compliance issues directly from your IDE, with free local scans, AI-generated framework-aware fixes, and verification capabilities.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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Source: Glama
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The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.
scan_pageScan 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…
verify_fixRe-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-c…
start_auditKick 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 wo…
get_auditCheck 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…
flow_scanScan 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 / revie…
detect_frameworkDetect 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_ai_fixGenerate 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…
visual_auditPixel-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, screenshot…
find_sourceFind 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_htmlScan 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 …
get_rulesList 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_color_contrastCheck 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` = ra…
check_ariaValidate 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 `incomplet…
scan_historyBrowse 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 sum…
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
tsup DOM Clobbering vulnerability
ABILYO_API_KEYABILYO_API_URLMCP_AUTH_TOKENWEBABILITY_API_KEYWEBABILITY_API_URLOptional env: (default https://api.webability.io) for self-hosted backends.WEBABILITY_SCAN_LOGWEBABILITY_SCAN_LOG_DIRWEBABILITY_SCAN_TELEMETRYXDG_CONFIG_HOMEPORTDependencies
4 runtime dependencies (4 dev), 1 flagged: playwright
Tool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
14/14 tools missing one or more hints — scan_page (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); verify_fix (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); start_audit (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +11 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool test coverage
9/14 tools referenced in tests (64%)
Write tests that reference each tool by name so every tool has at least one test.
Production dependencies are patched
0 critical, 1 high severity in production deps — @modelcontextprotocol/sdk@1.0.0 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Domain consistency
npm scope @webability doesn't match GitHub owner snayyar00
Use the same org name across GitHub, npm, and your homepage so users can verify the publisher.
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