cordlesssteve/webby-mcp
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Webby is a comprehensive website validator MCP server that tests websites across performance, accessibility, SEO, and security dimensions.
Tools
Functions exposed to the LLM to take actions
validate_performance_pagespeed
Google PageSpeed Insights API for performance scoring and metrics.
validate_performance_webpagetest
Playwright browser automation for real-time performance testing.
validate_performance_gtmetrix
GTmetrix API for detailed performance metrics.
validate_accessibility_axe
Playwright + axe-core for accessibility testing.
validate_accessibility_wave
WAVE API for WCAG compliance checks.
validate_security_mozilla_observatory
Mozilla Observatory API for security header analysis.
validate_security_ssl_labs
SSL Labs API for SSL/TLS certificate testing.
validate_all_performance
Orchestrator for running all performance tests.
validate_all_accessibility
Orchestrator for running all accessibility tests.
validate_all_seo
Orchestrator for running SEO tests.
validate_all_security
Orchestrator for running all security tests.
validate_comprehensive
Master orchestrator for comprehensive analysis across all categories.
Prompts
Interactive templates invoked by user choice
No prompts
Resources
Contextual data attached and managed by the client