audit-ledger-mcp
An MCP server that enables agents like Claude, Cursor, and LangGraph to write AI decisions to a tamper-evident audit ledger. It exposes tools to record, verify, and list decisions, hashing inputs locally for privacy and supporting compliance with regulations like the EU AI Act and GDPR.
Package and access
Local package with source-attributed installation metadata. Koskamo does not execute packages during review.
Checks and signals
Each line is separate evidence, not a trust score.
- Popularity 1 GitHub star
What you can do with it
- Log AI decisions to a tamper-evident ledger
- Verify decision integrity against immutable storage
- Check for missing or deleted audit records
- Query recent decisions filtered by time window
Source and maintenance
- Last repository push
- Maintenance checked
Packages and installation
Source-provided package data. Koskamo has not executed or live-probed this package.
audit-ledger-mcp 0.3.1
{
"version": "0.3.1",
"transport": "stdio",
"identifier": "audit-ledger-mcp",
"registryType": "npm",
"environmentVariables": [
{
"name": "AUDIT_API_URL",
"format": "string",
"description": "Your deployed audit-ledger API endpoint (e.g. https://<api-id>.execute-api.<region>.amazonaws.com/prod). Leave unset to run in sandbox mode against the public shared tenant."
},
{
"name": "AUDIT_WRITE_KEY",
"format": "string",
"description": "Tenant write key for your deployed ledger. Required if AUDIT_API_URL is set and you want to call record_decision."
},
{
"name": "AUDIT_READ_KEY",
"format": "string",
"description": "Tenant read key for your deployed ledger. Required if AUDIT_API_URL is set and you want to call verify_decision or list_decisions."
},
{
"name": "AUDIT_TIMEOUT_MS",
"format": "string",
"description": "HTTP timeout in milliseconds. Defaults to 5000."
},
{
"name": "AUDIT_RETRY_ATTEMPTS",
"format": "string",
"description": "Number of retry attempts on transient failures. Defaults to 3."
},
{
"name": "AUDIT_HMAC_KEY",
"format": "string",
"description": "Tenant secret used to HMAC-SHA256 PII and prompts locally before sending. Generate once per tenant (e.g. node -e \"console.log(require('crypto').randomBytes(32).toString('hex'))\") and keep it in your environment. The key never leaves your process. If unset, the MCP falls back to plain SHA-256 for backwards compatibility and logs a one-time deprecation warning; set this to switch to keyed hashing, which regulators (ICO/EDPB) expect for pseudonymisation."
}
]
}Tools
Reported by the attributed source; not independently observed by Koskamo.
Maintenance history
Public check and source-refresh events. Editorial and ownership records remain private.
- · repository · passed · metadata changed · updated
- · backfill · recorded · Pre-expansion baseline; unobserved rich metadata remains unknown
Connect from your client
Each snippet configures the same source-provided package; replace placeholders before use.
Cursor
{
"mcpServers": {
"audit-ledger-mcp": {
"command": "npx",
"args": [
"-y",
"audit-ledger-mcp@0.3.1"
],
"env": {
"AUDIT_API_URL": "<YOUR_AUDIT_API_URL>",
"AUDIT_WRITE_KEY": "<YOUR_AUDIT_WRITE_KEY>",
"AUDIT_READ_KEY": "<YOUR_AUDIT_READ_KEY>",
"AUDIT_TIMEOUT_MS": "<YOUR_AUDIT_TIMEOUT_MS>",
"AUDIT_RETRY_ATTEMPTS": "<YOUR_AUDIT_RETRY_ATTEMPTS>",
"AUDIT_HMAC_KEY": "<YOUR_AUDIT_HMAC_KEY>"
}
}
}
}Cline
{
"mcpServers": {
"audit-ledger-mcp": {
"command": "npx",
"args": [
"-y",
"audit-ledger-mcp@0.3.1"
],
"env": {
"AUDIT_API_URL": "<YOUR_AUDIT_API_URL>",
"AUDIT_WRITE_KEY": "<YOUR_AUDIT_WRITE_KEY>",
"AUDIT_READ_KEY": "<YOUR_AUDIT_READ_KEY>",
"AUDIT_TIMEOUT_MS": "<YOUR_AUDIT_TIMEOUT_MS>",
"AUDIT_RETRY_ATTEMPTS": "<YOUR_AUDIT_RETRY_ATTEMPTS>",
"AUDIT_HMAC_KEY": "<YOUR_AUDIT_HMAC_KEY>"
}
}
}
}VS Code
{
"servers": {
"audit-ledger-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"audit-ledger-mcp@0.3.1"
],
"env": {
"AUDIT_API_URL": "<YOUR_AUDIT_API_URL>",
"AUDIT_WRITE_KEY": "<YOUR_AUDIT_WRITE_KEY>",
"AUDIT_READ_KEY": "<YOUR_AUDIT_READ_KEY>",
"AUDIT_TIMEOUT_MS": "<YOUR_AUDIT_TIMEOUT_MS>",
"AUDIT_RETRY_ATTEMPTS": "<YOUR_AUDIT_RETRY_ATTEMPTS>",
"AUDIT_HMAC_KEY": "<YOUR_AUDIT_HMAC_KEY>"
}
}
}
}Claude Desktop
{
"mcpServers": {
"audit-ledger-mcp": {
"command": "npx",
"args": [
"-y",
"audit-ledger-mcp@0.3.1"
],
"env": {
"AUDIT_API_URL": "<YOUR_AUDIT_API_URL>",
"AUDIT_WRITE_KEY": "<YOUR_AUDIT_WRITE_KEY>",
"AUDIT_READ_KEY": "<YOUR_AUDIT_READ_KEY>",
"AUDIT_TIMEOUT_MS": "<YOUR_AUDIT_TIMEOUT_MS>",
"AUDIT_RETRY_ATTEMPTS": "<YOUR_AUDIT_RETRY_ATTEMPTS>",
"AUDIT_HMAC_KEY": "<YOUR_AUDIT_HMAC_KEY>"
}
}
}
}Let your agent find its tools
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