# APEX PSI (npm · apex-psi-mcp)

Cryptographic truth infrastructure for AI agents: seal, verify, anchor, cite, audit.

- Trust score: 70/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-17

## Components

- npm · `apex-psi-mcp`: 70/100 (this document), [markdown](https://verifymcp.io/servers/kawal393-apex-psi-mcp/apex-psi-mcp.md), [page](https://verifymcp.io/servers/kawal393-apex-psi-mcp/apex-psi-mcp)

## Channel facts

- Registry: `npm`
- Package: `apex-psi-mcp`
- Version: `1.0.1`
- 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 2026-08-17.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 30 of 96 dependencies flagged as unhealthy.
- **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 5 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 81/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 368 tokens (~73/item across 5 items; 5 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **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**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### Claude

```bash
claude mcp add kawal393-apex-psi-mcp -- npx -y apex-psi-mcp
```

### Codex

```bash
codex mcp add kawal393-apex-psi-mcp -- npx -y apex-psi-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "kawal393-apex-psi-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "apex-psi-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add kawal393-apex-psi-mcp --command npx --arg -y --arg apex-psi-mcp
```

### Hermes

```yaml
mcp_servers:
  kawal393-apex-psi-mcp:
    command: "npx"
    args: ["-y", "apex-psi-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "kawal393-apex-psi-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "apex-psi-mcp"
      ]
    }
  }
}
```

## 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.

### 2026-08-12 (score 70, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-08-11 (score 55)

First indexed and scored.

## MCP tools (5)

### `seal` (~116 tokens)

Seal content

Stamp a cryptographic receipt on content. Writes to the APEX PSI immutable ledger with SHA-256 hash, Ed25519 signature, and post-quantum LMS-W4-SHA256 signature.

Input parameters:

- `content` (string, required): The content to seal (text, up to 10000 characters)
- `context` (string): Optional context label (e.g. document name, case ID)
- `model_id` (string): Optional model/agent identifier producing the seal
- `predicate` (string): Optional predicate describing why this is sealed

### `verify` (~80 tokens)

Verify receipt

Verify a seal against the APEX PSI immutable ledger. Accepts a receipt object (from the seal tool) or a raw SHA-256 hash.

Input parameters:

- `hash` (string): A SHA-256 hash to look up in the ledger (with or without 'sha256:' prefix)
- `receipt` (object): A receipt object as returned by the seal tool

### `anchor` (~60 tokens)

Anchor to Bitcoin

Request a Bitcoin anchor of pending ledger Merkle roots via OpenTimestamps. Aggregates unanchored roots and submits them to OTS calendars.

Input parameters:

- `action` (string): 'anchor' submits pending roots; 'status' checks anchor state (default: anchor)

### `cite` (~62 tokens)

Generate citation

Generate a citation for a sealed receipt in APA, BibTeX, or MLA format, citing the APEX PSI ledger entry.

Input parameters:

- `format` (string): Citation format (default: apa)
- `receipt` (object, required): A receipt object as returned by the seal tool

### `audit` (~50 tokens)

Audit receipt chain

Audit a chain of receipts against the APEX PSI ledger. Checks each hash's presence and integrity, and reports Merkle chain continuity.

Input parameters:

- `receipts` (array, required): Array of receipt objects to audit (in order)

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/kawal393-apex-psi-mcp/apex-psi-mcp#diagnostics

## Score history

- 2026-08-17: 70
- 2026-08-16: 70
- 2026-08-15: 70
- 2026-08-14: 70
- 2026-08-13: 70
- 2026-08-12: 70
- 2026-08-11: 55

## Links

- npm package: https://www.npmjs.com/package/apex-psi-mcp
- Socket report: https://socket.dev/npm/package/apex-psi-mcp
- Repository: https://github.com/kawal393/apex-psi-mcp-server
- Changelog RSS feed: https://verifymcp.io/servers/kawal393-apex-psi-mcp/apex-psi-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/kawal393-apex-psi-mcp/apex-psi-mcp.json
- HTML version of this page: https://verifymcp.io/servers/kawal393-apex-psi-mcp/apex-psi-mcp