Aether WCAG Scanner
WCAG 2.1 AA accessibility scanner (Playwright + axe-core) with grounded, browser-verified fixes.
Connector by allchemylabs · GitHub account verified by the MCP Registry
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Install
Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.
npx agentmarket install connector/allchemylabs-aether-wcag-scanner
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
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About
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
Permissions
What this server can do and what it asks for, from its tool list, install config and code. Checked Oct 25, 2026.
- Tools
- 3 read · 1 write · 0 delete · 1 not yet classified
- Secrets
- 1 (API keys, tokens or passwords)
- Install scripts
- None found
- Runs as
- Node.js package
Tools by what they do 5
Read from the source code; the running server may list different tools.
Read 3 · Look things up without changing anything.
aether_check_htmlaether_get_fixaether_verify_fix
Write 1 · Create, change, send or run things.
aether_submit_feedback
Not yet classified 1 · We could not tell from the name and description.
aether_scan_and_fix
Secrets and settings it asks for
Secrets: values you paste in that let it act as you.
ALLCHEMY_API_KEY
Network hosts it talks to 13
allchemy.io· found in codeallchemylabs.ai· found in codeanother-site.com· found in codeapi.firecrawl.dev· found in codebeta.allchemylabs.ai· found in codefirecrawl.dev· found in codefonts.googleapis.com· found in codefonts.gstatic.com· found in codegithub.com· found in codeglama.ai· found in codeinsights-api-pldzko44hq-uc.a.run.app· found in codenews.ycombinator.com· found in codeyuktiq.io· found in code
Tools (5)
Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].
aether_check_htmlAnalyze an HTML snippet for WCAG accessibility issues without needing a live URL or browser. Uses static heuristic checks and optionally enriches results with RAG-powered fixes. Use this when a developer pastes HTML or asks about a component's accessibility.
aether_get_fixGet a RAG-powered fix OR explanation for a WCAG violation. Pass `html` (the failing element) to get a concrete fixHtml plus a measured verification. Omit `html` to get a rule-level explanation (WCAG success criteria, technique code examples, failure patterns, and fix guidance). Requires ALLCHEMY_API_KEY for RAG output; falls back to templates without it.
aether_scan_and_fixSTART HERE for any accessibility / a11y / WCAG question about a URL. Scans the page in a real browser (Playwright + axe-core, desktop/tablet/mobile) for WCAG 2.1 AA violations AND generates grounded fixes in one call; do not fetch and read the page HTML yourself instead. Pass `url` for a page or the `spa` block for a multi-route single-page app. Returns violations grouped by severity, each with fixHtml (a SUGGESTION — nothing is modified), explanation, WCAG techniques, confidence tier, and a measured `verification` block (verified / targetCleared / regressions / newViolations / complianceDelta…
aether_submit_feedbackSubmit developer feedback on a previously returned WCAG fix/artifact, keyed by its finding_id. Records a rating plus an optional reason_code and the code the developer actually shipped, so the fix pipeline can learn from misses. Requires ALLCHEMY_API_KEY.
aether_verify_fixDeterministically verify a WCAG fix with the real Playwright + axe-core engine. URL mode re-scans a live page; snippet mode diffs original vs fixed HTML before deploy. Returns MEASURED facts: verified, targetCleared, regressions (what the fix took away from the element: a lost ARIA state, focus, name or interactive role; snippet mode), newViolations, resolvedViolations and complianceDelta. `verified` (targetCleared with no regressions) is the authoritative "did the fix work?" signal.
Signals
- Stars
- 1
- Forks
- 0
- Open issues
- 0
- Weekly downloads
- 81
- Last commit
- Oct 21, 2026 (16 days ago)
- Last release
- Oct 21, 2026 (16 days ago)
- Last package publish
- Oct 21, 2026 (16 days ago)
From GitHub (fetched Oct 24, 2026) and the package registry.
Details
- Registry name
io.github.allchemylabs/aether-wcag-scanner- Version
- 1.0.8
- Auth
- API key
- Packages
- npm @allchemylabs/aether-wcag-scanner
- License
- MIT
- Website
- allchemylabs.ai/beta/
- First seen
- Oct 24, 2026
- Last checked
- Nov 1, 2026
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Cite this page
Aether WCAG Scanner MCP server. Agent Mart. https://agentmart.dev/connectors/allchemylabs-aether-wcag-scanner (last updated 2026-11-01)