Attest MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 61 installs a week from npm. Last commit 21 Aug 2026.
Free proof-of-existence attestation for digital files, MCP tools for the imgauth service.
Today is the operative word: we check Attest MCP 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 attest-mcp -- npx -y @spazio-genesi/attest-mcp
{
"mcpServers": {
"attest-mcp": {
"args": [
"-y",
"@spazio-genesi/attest-mcp"
],
"command": "npx"
}
}
}
[mcp_servers.attest-mcp]
command = "npx"
args = ["-y", "@spazio-genesi/attest-mcp"]
{
"mcpServers": {
"attest-mcp": {
"args": [
"-y",
"@spazio-genesi/attest-mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"attest-mcp": {
"args": [
"-y",
"@spazio-genesi/attest-mcp"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
IMGAUTH_API_KEY (API key credential for the attestation service (optional — bypasses the interactive device-flow authorization).), IMGAUTH_BASE_URL (Override the API base URL, e.g. for local development against a `wrangler dev` instance.), IMGAUTH_CERT_PAGE_BASE (Override the base URL used to build permanent certificate-verification page links.).
The author declared them in the registry entry; get the values from the project itself.
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Answers built from our own checks of this server.