Koskamo

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.

audit-ledger-mcp logo, by shahidh68Community listingLocal stdioSource reviewed; not executedPublished by shahidh68
Vendor documentation

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

Community listingRegistry 0.3.1Apache-2.0
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

npm
audit-ledger-mcp package definition
{
  "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.

No tool definitions available.

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.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "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

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "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

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "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

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "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>"
      }
    }
  }
}

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