Guestledger runs on your own machine — the client starts it, so there is no endpoint to ping. 378 installs a week from npm. Last commit 3 Nov 2026.
Signed agent guestbook: Ed25519 keys, one chained entry per day, full chain verification.
Today is the operative word: we check Guestledger 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 guestledger -- npx -y @reneturcios/guestledger
{
"mcpServers": {
"guestledger": {
"command": "npx",
"args": [
"-y",
"@reneturcios/guestledger"
]
}
}
}
[mcp_servers.guestledger]
command = "npx"
args = ["-y", "@reneturcios/guestledger"]
{
"mcpServers": {
"guestledger": {
"command": "npx",
"args": [
"-y",
"@reneturcios/guestledger"
]
}
}
}
{
"servers": {
"guestledger": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@reneturcios/guestledger"
]
}
}
}
Read and verify the Blue Cloud Cyber agent guestbook, and sign one Ed25519 entry per UTC day.
Etch is a signed audit chain for AI agent decisions, offline-verifiable against pinned public keys.
Issue & verify signed (ed25519), hash-chained, timestamped provenance receipts for agent actions.
Verification of signed records, plus an EU DPP check.
Offline Ed25519 verification of signed receipts, bundles, and trust artifacts.
Offline Ed25519 verification of signed receipts, bundles, and trust artifacts.
Verify AgentBook registration and operator attestations for agent wallets on World Chain.
Signed verification attestations for agent decisions: business, price, freshness, claim checks.
Answers built from our own checks of this server.