What it does

Runs Deque's axe engine against a page and returns structured violations with the failing selector and rule. It will not find everything — automated checks catch roughly a third of real accessibility problems — but it catches the cheap ones before a user does. Good default in a CI pipeline, bad as a compliance claim.

Install

Terminal

npx -y axe-mcp-server

Client configuration

Paste this into your MCP client config (Claude Desktop, Cursor, or any client that reads mcpServers), then restart the client.

mcp.json

{
  "mcpServers": {
    "axe": {
      "command": "npx",
      "args": [
        "-y",
        "axe-mcp-server"
      ]
    }
  }
}

Use it for

Catching WCAG violations on a page before a human audit

Skip it if

Certifying accessibility; automated tools catch a minority of real issues

When to use it

Reach for this when the task needs accessibility inside the agent loop. Skip it if a plain shell command or a one-off script is enough — every server you add costs context and adds a failure mode.

Other TypeScript servers

Filesystem — Gives an agent scoped read, write, and search access to directories you explicitly allow
Memory — A persistent knowledge graph stored in a local JSON file, exposed through entities, relations, and observations
Sequential Thinking — Gives the model a scratchpad for structured, revisable reasoning: numbered thoughts that can branch, revise, and conclude

axe MCP