Overlayrisk Witness runs on your own machine — the client starts it, so there is no endpoint to ping. 40 installs a week from npm. Last commit 29 Jun 2026.
Independent before/after accessibility-overlay (accessiBe/UserWay) witness for any public URL.
Today is the operative word: we check Overlayrisk Witness every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add overlayrisk-witness -- npx -y overlayrisk-witness-mcp
{
"mcpServers": {
"overlayrisk-witness": {
"command": "npx",
"args": [
"-y",
"overlayrisk-witness-mcp"
]
}
}
}
[mcp_servers.overlayrisk-witness]
command = "npx"
args = ["-y", "overlayrisk-witness-mcp"]
{
"mcpServers": {
"overlayrisk-witness": {
"command": "npx",
"args": [
"-y",
"overlayrisk-witness-mcp"
]
}
}
}
{
"servers": {
"overlayrisk-witness": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"overlayrisk-witness-mcp"
]
}
}
}
Optional settings from the registry entry, left out of the block above:
OVERLAYRISK_API_URL (Override the hosted witness endpoint (defaults to https://overlayrisk.com/api/witness)).
Scan any URL for WCAG accessibility issues (axe-core) and get per-element fixes for an AI agent.
Accessibility scans with evidence, public reports, and fresh checks after fixes.
Inclusio MCP server for accessibility-first LaTeX publishing (PDF/UA-2, WTPDF, PDF/A-4f).
MCP server for automated web accessibility scanning with Playwright and Axe-core.
Check a PDF on a public website for the structure screen readers use.
CivicBinder: ADA Title II accessibility grades for US local-government websites.
Neutral third-party witness: independently fetch, hash, timestamp, archive any URL or API response.
Accessibility-first desktop control for any agent: background input, agent pointer, zoom, Chrome.
Answers built from our own checks of this server.