# a11yscope-mcp

MCP server that checks web pages and HTML against WCAG 2.2 AA — the A11yScope engine for AI coding agents

- **Type:** MCP server
- **Trust:** 60/100 (B), scored on the package rubric
- **Verification:** community-indexed — nobody has claimed this listing
- **Version:** 0.3.0
- **Author:** Perceivable
- **License:** SEE LICENSE IN LICENSE
- **npm:** a11yscope-mcp
- **Source:** https://github.com/perceivable/a11yscope
- **Compatible clients:** claude-code, cursor, copilot, gemini (basis: transport)

## Trust

60/100 (B), scored on the package rubric
- Publisher verified: no
- Install scripts: nothing suspicious found
- Prompt-injection scan: not run
- Obfuscation scan: not run
- Evidence age: 0 days

## Security scan

- **Status:** warnings
- **Scanned:** 2026-10-14T15:04:59.529Z
- **Version scanned:** 0.3.0
- **CVEs:** none found by OSV at scan time

## Tools

3 declared. Statically extracted from the shipped source — a floor on the surface, not a census.
- `scan_page` — Loads a URL (http/https) or a local HTML file path in headless Chrome, runs the A11yScope engine,
- `scan_html` — Renders the given HTML in headless Chrome and scans it. Use this for markup you generated or are about to write.
- `list_rules` — The 31 checks A11yScope runs, each with its WCAG 2.2 success criteria, level, impact, and how to fix it.

## Install

**Verdict: review** — Installable, but 1 thing to check first: No publisher has proved control of this listing; it is indexed, not vouched for.
**Cautions** (coverage gaps and advisories — never blocking)
- No publisher has proved control of this listing; it is indexed, not vouched for.
**Config** (claude-code):
```json
"{\n  \"mcpServers\": {\n    \"a11yscope\": {\n      \"command\": \"npx\",\n      \"args\": [\n        \"-y\",\n        \"a11yscope-mcp\"\n      ]\n    }\n  }\n}"
```

## Blast radius

Contained to moderate — no credential declaration found, from the publisher, the upstream registry, or the README. Known so far: runs on your machine; read-only tool surface.
- Floor 13, ceiling 31 (tier: unknown)
- `unknown` means the floor and ceiling land in different bands — not measured enough to name one. It does not mean low.
- This is impact, not likelihood. A high radius is not a defect: a filesystem server is supposed to write files. It is never part of the trust score.

## Machine-readable views of this entry

- Signed JSON: https://forgeregistry.com/api/v1/packages/a11yscope-mcp
- Install plan: https://forgeregistry.com/api/v1/packages/a11yscope-mcp/install-plan
- Alternatives: https://forgeregistry.com/api/v1/alternatives/a11yscope-mcp
- HTML page: https://forgeregistry.com/registry/a11yscope-mcp
- MCP: POST https://forgeregistry.com/api/mcp → `forge_get_package` / `forge_install_plan`

## About this document

Generated by Forge (https://forgeregistry.com) — a compact rendering of the same record served, signed, at the JSON URL above. Trust and scan facts are the registry's own measurements; anything Forge did not measure is named as unmeasured rather than omitted.