eu-audit-mcp

Tamper-evident audit trail MCP server for EU AI Act and GDPR compliance. Designed to be integrated into a local desktop application via stdio transport.

Features

• Tamper-evident logging — HMAC-SHA256 hash chain over all events

• PII scanning — Automatic detection and redaction via Microsoft Presidio (EU patterns)

• GDPR erasure — Article 17 right-to-erasure support with audit trail

• Compliance checks — Technical checklist against EU AI Act Articles 12/19 and GDPR Article 30

• Local-first — All data stays on your machine in a single SQLite file

Related MCP server: mcp-witness

Regulatory context

This server implements technical measures for the following EU regulations:

The EU AI Act high-risk obligations enter into force on 2 August 2026.

See LEGAL_REFERENCES.md for the full article texts and a detailed mapping of how each tool addresses each requirement.

Disclaimer: This tool provides a technical checklist, not legal advice. Consult qualified legal counsel for compliance decisions.

Quick start

pip install -e ".[dev]"

Run the server (stdio)

python -m eu_audit_mcp.server

MCP client configuration

{
  "mcpServers": {
    "eu-audit": {
      "command": "python",
      "args": ["-m", "eu_audit_mcp.server"],
      "env": {
        "AUDIT_CONFIG": "./audit_config.yaml"
      }
    }
  }
}

Run tests

pytest tests/

MCP Tools

Configuration

Copy the example config and customize:

cp audit_config.example.yaml audit_config.yaml

Set the AUDIT_CONFIG environment variable to point to your config file. Do not commit audit_config.yaml if it contains a chain_secret — it is in .gitignore by default.

Security

See SECURITY.md for the threat model, security measures, and vulnerability reporting.

License

Apache-2.0