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a11y-scorer

io.github.lazymac2x/a11y-scorer
Developer Tools Public & reachable MCP 2026-07-28

What this MCP does

Audits HTML or URLs for WCAG 2.1 AA issues, evaluates color contrast, and extracts heading structures.

Capabilities

Tools

4 tools
a11y_audit_html
Audit raw HTML for WCAG 2.1 AA issues.
Input schema 
{'type': 'object', 'required': ['html'], 'properties': {'html': {'type': 'string'}}}
a11y_audit_url
Fetch a URL and return a WCAG 2.1 AA heuristic audit.
Input schema 
{'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string'}}}
a11y_contrast
Evaluate WCAG color contrast for a foreground/background pair.
Input schema 
{'type': 'object', 'required': ['fg', 'bg'], 'properties': {'bg': {'type': 'string'}, 'fg': {'type': 'string'}, 'bold': {'type': 'boolean'}, 'fontSize': {'type': 'number'}}}
a11y_headings
Extract heading outline from HTML.
Input schema 
{'type': 'object', 'required': ['html'], 'properties': {'html': {'type': 'string'}}}
History

Recent tool changes

Added
a11y_headings
Sept. 17, 2026, 12:43 p.m.
Added
a11y_contrast
Sept. 17, 2026, 12:43 p.m.
Added
a11y_audit_html
Sept. 17, 2026, 12:43 p.m.
Added
a11y_audit_url
Sept. 17, 2026, 12:43 p.m.
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