# io.github.PiQrypt/audit-trail (npm · @piqrypt/mcp-server)

Cryptographic audit trail for AI agents. Sign, verify, export. GDPR/HIPAA/EU AI Act.

- Trust score: 59/100 (low)
- Change this week: −13
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `@piqrypt/mcp-server`: 59/100 (this document), [markdown](https://verifymcp.io/servers/piqrypt-audit-trail/piqrypt-mcp-server.md), [page](https://verifymcp.io/servers/piqrypt-audit-trail/piqrypt-mcp-server)

## Channel facts

- Registry: `npm`
- Package: `@piqrypt/mcp-server`
- Version: `1.5.2`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Supply Chain Security**: 70/100
  - No malware found by supply-chain analysis.
  - CVE check failed: a known high-severity CVE affects @modelcontextprotocol/sdk 0.5.0, a direct dependency. A fixed version is available.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (13 of 14), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 88 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 71/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 337 tokens (~84/item across 4 items; 4 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Capabilities**: 20/100
  - Spec-recency check failed: implements MCP spec 2024-11-05; the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add piqrypt-audit-trail -- npx -y @piqrypt/mcp-server
```

### Codex

```bash
codex mcp add piqrypt-audit-trail -- npx -y @piqrypt/mcp-server
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "piqrypt-audit-trail": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@piqrypt/mcp-server"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add piqrypt-audit-trail --command npx --arg -y --arg @piqrypt/mcp-server
```

### Hermes

```yaml
mcp_servers:
  piqrypt-audit-trail:
    command: "npx"
    args: ["-y", "@piqrypt/mcp-server"]
```

### Other

```json
{
  "mcpServers": {
    "piqrypt-audit-trail": {
      "command": "npx",
      "args": [
        "-y",
        "@piqrypt/mcp-server"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-02 (score 59, +1)

- [functional improvement] Stability: unverified → 0.23

### 2026-07-31 (score 58, −14)

- [security regression] Malware scan: pass → unverified
- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-27 (score 72, +26)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-26 (score 46)

First indexed and scored.

## MCP tools (4)

### `piqrypt_stamp_event` (~113 tokens)

Sign an AI decision with PiQrypt for cryptographic audit trail. Creates AISS-1.0 signed event with Ed25519 or AISS-2.0 with Dilithium3 (post-quantum).

Input parameters:

- `agent_id` (string, required): Agent identifier (e.g., "trading_bot_v1", "hr_decision_engine")
- `payload` (object, required): Event payload containing decision data (JSON object)
- `previous_hash` (string): Optional hash of previous event for chain integrity

### `piqrypt_verify_chain` (~49 tokens)

Verify integrity of PiQrypt event chain. Validates signatures, hash chain, and detects tampering or forks.

Input parameters:

- `events` (array, required): Array of PiQrypt events to verify

### `piqrypt_export_audit` (~79 tokens)

Export audit trail to JSON or encrypted .pqz archive. Optionally request PiQrypt external certification for legal compliance.

Input parameters:

- `agent_id` (string, required): Agent ID to export
- `certified` (boolean): Create certified export (requires Pro license)
- `output_format` (string): Output format (json or encrypted pqz archive)

### `piqrypt_search_events` (~96 tokens)

Search audit trail using fast SQLite index. Filter by event type, date range, or agent ID.

Input parameters:

- `event_type` (string): Filter by event type (e.g., "trade_executed", "decision_made")
- `from_timestamp` (number): Start timestamp (Unix UTC seconds)
- `limit` (number): Maximum number of results
- `to_timestamp` (number): End timestamp (Unix UTC seconds)

## Diagnostics

Captured diagnostic sections: Provenance, Vulnerabilities, Dependencies. The full working is on the page: https://verifymcp.io/servers/piqrypt-audit-trail/piqrypt-mcp-server#diagnostics

## Score history

- 2026-08-03: 59
- 2026-08-02: 59
- 2026-08-01: 58
- 2026-07-31: 58
- 2026-07-29: 72
- 2026-07-28: 72
- 2026-07-27: 72
- 2026-07-26: 46

## Links

- npm package: https://www.npmjs.com/package/@piqrypt/mcp-server
- Socket report: https://socket.dev/npm/package/@piqrypt/mcp-server
- Repository: https://github.com/PiQrypt/piqrypt-mcp-server
- Changelog RSS feed: https://verifymcp.io/servers/piqrypt-audit-trail/piqrypt-mcp-server/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/piqrypt-audit-trail/piqrypt-mcp-server/changelog.json
- HTML version of this page: https://verifymcp.io/servers/piqrypt-audit-trail/piqrypt-mcp-server