About Webskan
Webskan is a remote MCP server and Claude Code plugin for auditing public websites in a real mobile browser. It checks performance, SEO, accessibility, security, links and user journeys, then compares findings after fixes.
Key features
- 01Mobile and desktop Lighthouse checks
- 02SEO crawl of up to 30 pages
- 03WCAG 2.1 AA accessibility checks
- 04Security headers and TLS checks
- 05Broken links, forms and journeys
- 06Finding IDs for exact re-checks
Use cases
- 01Audit a site after deployment
- 02Find accessibility and SEO issues
- 03Re-check findings after fixes
- 04Review forms and key user journeys
MCP support
Webskan exposes the `scan_website`, `audit_website`, `get_audit` and `recheck_website` tools through a remote MCP server at `https://webskan.com/mcp`.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://webskan.com/mcpclaude mcp add --transport http kamilobstawskiagent-ux-webskan https://webskan.com/mcp{"mcpServers":{"kamilobstawskiagent-ux-webskan":{"type":"http","url":"https://webskan.com/mcp"}}}Open in Cursor{"servers":{"kamilobstawskiagent-ux-webskan":{"type":"http","url":"https://webskan.com/mcp"}}}Open in VS Code{"mcpServers":{"kamilobstawskiagent-ux-webskan":{"type":"http","url":"https://webskan.com/mcp"}}}{"mcpServers":{"kamilobstawskiagent-ux-webskan":{"serverUrl":"https://webskan.com/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
https://webskan.com/mcpAuth requiredTools
Details
From the project READMEWebskan plugin for Claude Code
Audit and re-check the website your agent just shipped. The plugin adds the
Webskan remote MCP server (https://webskan.com/mcp) and a
/webskan:site-check skill that teaches Claude Code the loop: audit, fix the high and medium
findings by id, deploy, re-check, report fixed / still open / new.
What Webskan checks, from the outside, in a real mobile browser: Lighthouse (mobile and desktop), a crawl of up to 30 pages with SEO checks on each, axe-core accessibility (WCAG 2.1 AA), security headers and TLS, broken links, forms, the cookie banner, and customer journeys (404 page, menu, search, cart to checkout). Every finding has a stable id, so the re-check is an exact diff.
Install
In Claude Code:
/plugin marketplace add kamilobstawskiagent-ux/webskan-claude-plugin
/plugin install webskan@webskan
Or from the shell:
claude plugin marketplace add kamilobstawskiagent-ux/webskan-claude-plugin
claude plugin install webskan@webskan
No account and no key are needed for the free plan. If you only want the MCP server without the skill:
claude mcp add --transport http webskan https://webskan.com/mcp
Use
/webskan:site-check https://mysite.com
or just ask: "audit https://mysite.com and fix the high-severity findings, then recheck".
Tools provided by the server: scan_website, audit_website, get_audit, recheck_website.
Details, limits of the free plan and configuration for Cursor, VS Code, Codex CLI and other clients:
https://webskan.com/developers/
Free plan limits
scan_website: 10 per hour per IP (120 per hour overall); results cached 24 h per host, kept 7 days.audit_website/recheck_website: 2 per IP per 24 h and 1 per host per 24 h; 1-30 pages; results kept 30 days.- Public websites only - no
localhost, private networks or sites behind a login.
Developer plan ($29/month): 30 whole-site audits per 24 h per key and no one-audit-per-host-per-day window. Pass the key as Authorization: Bearer <key> (an http server with headers in your MCP config). Details: https://webskan.com/developers/#teams
Layout
.claude-plugin/marketplace.json marketplace "webskan"
plugins/webskan/
.claude-plugin/plugin.json plugin manifest
.mcp.json remote MCP server
skills/site-check/SKILL.md the audit -> fix -> recheck loop
License
MIT. Contact: [email protected]
Comments
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