Overlayrisk Witness runs on your own machine — the client starts it, so there is no endpoint to ping. 30 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": {
"args": [
"-y",
"overlayrisk-witness-mcp"
],
"command": "npx"
}
}
}
[mcp_servers.overlayrisk-witness]
command = "npx"
args = ["-y", "overlayrisk-witness-mcp"]
{
"mcpServers": {
"overlayrisk-witness": {
"args": [
"-y",
"overlayrisk-witness-mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"overlayrisk-witness": {
"args": [
"-y",
"overlayrisk-witness-mcp"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
OVERLAYRISK_API_URL (Override the hosted witness endpoint (defaults to https://overlayrisk.com/api/witness).).
The author declared them in the registry entry; get the values from the project itself.
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