Canaryusers MCP Server

A flock of AI users tests your deployed app and reports where real people get stuck, with fixes.

Remote serverstreamable-http

What is the Canaryusers MCP server?

Connect Canaryusers to Claude, Cursor or any other MCP client and it stops being a tab you switch to. A flock of AI users tests your deployed app and reports where real people get stuck, with fixes. The canaryusers mcp server is what makes that connection.

What the server does

You point it at a URL; a flock of AI personas actually renders and explores the page like real users, then hands back prioritized, fix‑ready findings — not a vague score. Two modes:

  • Quick — (default) — a fast static check. Free
  • Deep — — renders the page, inspects it visually on desktop + mobile (catches mobile breakage and layout issues), and clicks through key flows like signup / checkout / onboarding (~60–90s, uses credits)

Available tools

The toolset is worth reading before you wire it up, because it tells you what the integration is really for:

  • canary_scan — Run a UX scan on a deployed URL. depth: quick (free, default) or deep (visual + flow, uses a credit). Returns AI‑ready findings
  • list_recent_scans — List your recent scans (id, URL, score, grade, status, date)
  • get_report_markdown — Fetch the full report for a scan id as Markdown

Credentials and setup notes

Configuration is passed through the environment: YOUR_CANARYUSERS_TOKEN. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.

Installation

Because this one is hosted, setup is mostly authentication — you point your client at the endpoint and approve access. Nothing runs on your machine, so there is no runtime to keep patched.

Where it fits

Plenty of payments and commerce servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. Canaryusers's toolset — canary_scan, list_recent_scans, get_report_markdown — is a fair guide to whether it matches your workflow. It is maintained by ai.canaryusers; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

Worth knowing first

  • Your data travels to the provider's service, so the usual questions apply about what you send and what they retain.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Available tools

ToolWhat it does
canary_scanRun a UX scan on a deployed URL. depth: quick (free, default) or deep (visual + flow, uses a credit). Returns AI‑ready findings.
list_recent_scansList your recent scans (id, URL, score, grade, status, date).
get_report_markdownFetch the full report for a scan id as Markdown.

How to install the Canaryusers MCP server

{
  "mcpServers": {
    "canaryusers": {
      "url": "https://www.canaryusers.ai/api/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_CANARYUSERS_TOKEN"
      }
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

VariableDescriptionRequired
YOUR_CANARYUSERS_TOKENCredential the server authenticates with.Yes

Example prompts to try

  • Use Canaryusers to canary scan.
  • Use Canaryusers to list recent scans.
  • Use Canaryusers to get report markdown.

Frequently asked questions

It connects Canaryusers to MCP-compatible AI assistants such as Claude and Cursor, exposing 3 tools (canary_scan, list_recent_scans, get_report_markdown) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Canaryusers directly.