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Website audits and SEO fixes inside Claude Code

Run squirrelscan as a skill or a hosted MCP server, and let Claude Code find what's broken and fix it.

Install
$
Pixel art of the squirrelscan squirrel with the Claude Code spark logo
260+ rules·21 categories·runs locally

Claude Code is already in your terminal, so it might as well run your SEO audits too. squirrelscan gives it two ways in: a thin CLI skill for quick local checks, or the hosted MCP server for cloud audits, browser rendering, and a shared issue tracker your whole team can see.

Either path gets you the same 260+ audit rules across SEO, performance, security, accessibility, and agent experience, minus the meta tag guessing games. Claude Code reads the output, tells you what's wrong, and if you ask nicely, fixes it.

Start with the CLI if you want something running in the next thirty seconds. Reach for the MCP server once you want Claude Code polling live audits, reading the issue tracker, or working across an organization instead of just your laptop.

Setup

Run it locally

free · squirrel CLI on your machine
  1. 1

    Install the squirrelscan CLI

    One line, no account needed. Local audits are free and run entirely on your machine.

    bash
    curl -fsSL https://install.squirrelscan.com | bash
  2. 2

    Run an audit in agent-friendly format

    Point it at a URL and ask Claude Code to read the result. The llm format is compact and structured, built for exactly this.

    bash
    squirrel audit https://example.com --format llm
  3. 3

    Or install the squirrelscan skills

    Installs all the squirrelscan skills and gives Claude Code a /audit-website slash command, so it can run audits on its own without you typing the CLI invocation each time. It works in plan mode too, so Claude Code can draft a fix plan before touching any code. Claude Code users can also grab everything, skills plus the hosted MCP server, as a plugin.

    bash
    npx skills add squirrelscan/squirrelscan
    squirrel skills reference

Run it hosted

cloud · rendering, scheduling, issue tracker, shareable reports
  1. 1

    For cloud audits, connect the hosted MCP server

    This is the deeper integration: cloud audits with browser rendering, the per-website issue tracker, and the rule catalog, all as native tools. Add the server, then run /mcp inside a session, select squirrelscan, and choose Authenticate to sign in and pick your organization.

    bash
    claude mcp add --transport http squirrelscan https://mcp.squirrelscan.com/mcp
    MCP client setup for Claude Code

Frequently asked questions

Is squirrelscan free to use with Claude Code?
Local audits are, with no account required: the squirrel CLI and the audit-website skill run entirely on your machine. Cloud audits over the hosted MCP server use pay-as-you-go credits, and every account gets 500 free every month, so most day-to-day use never touches a card.How credits work
How do I get Claude Code to actually fix my site's issues, not just list them?
Point Claude Code at the audit output, or run the audit-website skill in plan mode. It groups findings by category, maps them to files in your repo, and applies the fixes across your codebase. Re-audit afterwards and the issues it resolved stop showing up.
Can Claude Code audit my localhost or a staging site?
Yes. The local CLI and the audit-website skill audit any URL Claude Code's machine can reach, including localhost and internal staging. The hosted MCP server crawls from squirrelscan's cloud, so it needs a publicly reachable URL; for private networks, use the CLI or the local squirrel mcp server.
Should I use the skill or the hosted MCP server?
The skill wraps the free local CLI, best for quick one-off audits from your machine. The hosted MCP server is the fuller integration: cloud audits with browser rendering, a shared per-website issue tracker, and the rule catalog as native tools. Reach for it once you want state that persists across sessions and teammates. Many people install both.Hosted MCP server
Can I run the audit on every deploy or on a schedule?
Yes. For CI, drop the squirrel CLI into your pipeline: it exits non-zero when scores regress, so the build fails like any other check. For hands-off recurring runs, scheduled cloud audits re-run daily, weekly, or monthly from the dashboard on the Pro plan. And Claude Code can always just re-run an audit whenever you ask after a deploy.CI gating guide

Get started

Follow the docs quickstart, or see what a finished audit looks like.

Audit your site in one command

SEO, performance, security, accessibility and agent experience issues, with exact fixes for your coding agent.

Install
$

No account needed for the CLI. Cloud audits include free monthly credits.