squirrelscan — Claude Code MCP server: what it does, how to install
Connects website audits across 22 categories, covering SEO, speed, security, and accessibility. It delivers machine-readable findings so your coding agent can apply fixes right away.
claude mcp add --transport http squirrelscan https://mcp.squirrelscan.com/mcpWhat squirrelscan does
The MCP server hooks an automated quality scanner into your development workspace. It evaluates sites against more than 300 rules across 22 categories. The checks cover broken anchors, missing CSP headers, leaked credentials, and response latency. A dedicated module tests readiness for external AI systems by inspecting llms.txt and AGENTS.md.
Diagnostics arrive in an LLM-tailored format with explicit fix instructions. That lets the assistant patch local markup and repeat checks automatically. Loops continue until every error clears. The crawler also handles incremental passes using ETag headers and content hashing.
Full browser rendering for single-page apps requires an authenticated cloud session.
What it helps with
- detect broken links, redirect chains, and indexing flaws
- spot missing security headers, leaked credentials, and insecure cookies
- optimize
llms.txtandAGENTS.mdfor AI web crawlers - uncover Core Web Vitals bottlenecks and unminified assets
- feed structured repair instructions directly to a coding assistant
Example prompts for the agent
- Run a full squirrelscan audit against the local dev server and report all security failures.
- Audit the project against the Agent Experience rules and generate missing
llms.txtorAGENTS.mdfiles. - Scan our pages for broken links and apply the recommended fixes directly to the templates.
How to install squirrelscan
Platform CLI: remote server
claude mcp add --transport http squirrelscan https://mcp.squirrelscan.com/mcpPlatform CLI: remote server
codex mcp add squirrelscan --url https://mcp.squirrelscan.com/mcpConfig file
{
"mcpServers": {
"squirrelscan": {
"url": "https://mcp.squirrelscan.com/mcp"
}
}
}Config file
{
"servers": {
"squirrelscan": {
"type": "http",
"url": "https://mcp.squirrelscan.com/mcp"
}
}
}Platform CLI: remote server
gemini mcp add -t http squirrelscan https://mcp.squirrelscan.com/mcpStep by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about squirrelscan
How do I install squirrelscan in Claude Code?
Run claude mcp add --transport http squirrelscan https://mcp.squirrelscan.com/mcp in your terminal. This registers the remote HTTP endpoint in your agent configuration.
What does squirrelscan do?
It scans web pages against over 300 checks spanning SEO, performance, security, and accessibility. The tool supplies your coding assistant with machine-readable guidance to fix every reported flaw.
Do I need an account to use squirrelscan?
Basic scans and CLI checks work without logging in. An authenticated cloud account is only needed for headless browser rendering and automated link monitoring.
