# pkgproof (npm · @pkgproof/mcp)

Verify an npm package before you install it: advisories, install scripts, typosquats, provenance.

- Trust score: 88/100 (high trust)
- Change this week: +18
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-21

## Components

- npm · `@pkgproof/mcp`: 88/100 (this document), [markdown](https://verifymcp.io/servers/net-pkgproof-pkgproof/pkgproof-mcp.md), [page](https://verifymcp.io/servers/net-pkgproof-pkgproof/pkgproof-mcp)

## Channel facts

- Registry: `npm`
- Package: `@pkgproof/mcp`
- Version: `0.1.7`
- 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 2026-09-21.

- **Supply Chain Security**: 99/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 12 of 48 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to jahija-okan/pkgproof-mcp).
  - Clear OSI-approved license (Apache-2.0).
  - Actively maintained (last published 6 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 83/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 153 tokens (~153/item across 1 items; 1 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 43/100
  - Stability observed for 13 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.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 1 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 1 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the pkgproof MCP server?

pkgproof runs locally as an npm package, launched with npx -y @pkgproof/mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add net-pkgproof-pkgproof -- npx -y @pkgproof/mcp
```

### Cursor

```json
{
  "mcpServers": {
    "net-pkgproof-pkgproof": {
      "command": "npx",
      "args": [
        "-y",
        "@pkgproof/mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "net-pkgproof-pkgproof": {
      "command": "npx",
      "args": [
        "-y",
        "@pkgproof/mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add net-pkgproof-pkgproof -- npx -y @pkgproof/mcp
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add net-pkgproof-pkgproof --command npx --arg -y --arg @pkgproof/mcp
```

### Hermes

```yaml
mcp_servers:
  net-pkgproof-pkgproof:
    command: "npx"
    args: ["-y", "@pkgproof/mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "net-pkgproof-pkgproof": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@pkgproof/mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add net-pkgproof-pkgproof -t stdio -c npx -a -y @pkgproof/mcp
```

### Other

```json
{
  "mcpServers": {
    "net-pkgproof-pkgproof": {
      "command": "npx",
      "args": [
        "-y",
        "@pkgproof/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.

### 2026-09-20 (score 88, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 87, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-16 (score 86, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-15 (score 85, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-09-14 (score 70, −14)

- [security regression] Malware scan: pass → unverified
- [security regression] Tool safety: pass → unverified
- [security regression] Stability: 0.17 → unverified
- [functional regression] Capabilities: pass → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified
- [functional] Package version: 0.1.4 → 0.1.7

### 2026-09-12 (score 84, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-10 (score 83, +11)

- [security improvement] Known CVEs: unverified → pass
- [functional improvement] Dependency health: unverified → 0.92

### 2026-09-09 (score 72, +16)

- [security regression] Tool safety: pass → unverified
- [security improvement] Malware scan: unverified → pass
- [security improvement] Known CVEs: unverified → pass
- [security] Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional regression] Capabilities: pass → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional improvement] Stability: unverified → 0.03
- [functional improvement] Dependency health: unverified → 0.92
- [functional] First check of Schema quality: unverified
- [functional] Package version: 0.1.3 → 0.1.4

## MCP tools (1)

### `verify_package` (~153 tokens)

Verify package

Verify an npm package before installing it. Runs eight checks covering advisories, install scripts, typosquat and combosquat names, scope, repository provenance and maintainer reputation, and answers safe, caution, block or does_not_exist with every reason labelled as fact or heuristic against its source. One call is one verification: the first each day is free, and later ones cost $0.05 in USDC when a wallet is configured.

Input parameters:

- `ecosystem` (string): Package ecosystem. Only npm is supported.
- `name` (string, required): Package name, scoped or not: left-pad, @scope/thing.
- `version` (string): Exact version to verify. Omit to verify the package rather than one release.

Output parameters:

- `checked_at` (string): When the verdict was computed, ISO 8601 UTC.
- `ecosystem` (string)
- `name` (string)
- `reasons` (array): Every reason behind the verdict.
- `sources` (object): The datasets consulted, by name and URL.
- `verdict` (string)
- `version` (string|null): The version verified, or null if none was given.

## Diagnostics

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

## Score history

- 2026-09-21: 88
- 2026-09-20: 88
- 2026-09-19: 87
- 2026-09-18: 87
- 2026-09-17: 86
- 2026-09-16: 86
- 2026-09-15: 85
- 2026-09-14: 70
- 2026-09-13: 84
- 2026-09-12: 84
- 2026-09-11: 83
- 2026-09-10: 83
- 2026-09-09: 72
- 2026-09-08: 56

## Common questions

### What is the pkgproof MCP server?

pkgproof is an MCP server listed in the public MCP registry as net.pkgproof/pkgproof. Verify an npm package before you install it: advisories, install scripts, typosquats, provenance. This page covers its npm package (@pkgproof/mcp).

### Is the pkgproof MCP server safe to use?

pkgproof scores 88 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 21 September 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the pkgproof MCP server expose?

pkgproof exposes 1 tool: verify_package. Their descriptions and schemas cost roughly 153 tokens of context every time the server is loaded.

### Is the pkgproof MCP server still maintained?

pkgproof is still listed as active in the MCP registry. We last reached this channel on 21 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the pkgproof MCP server under?

pkgproof declares the Apache-2.0 licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- npm package: https://www.npmjs.com/package/@pkgproof/mcp
- Socket report: https://socket.dev/npm/package/@pkgproof/mcp
- Repository: https://github.com/jahija-okan/pkgproof-mcp
- Website: https://pkgproof.net/
- Changelog RSS feed: https://verifymcp.io/servers/net-pkgproof-pkgproof/pkgproof-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/net-pkgproof-pkgproof/pkgproof-mcp.json
- HTML version of this page: https://verifymcp.io/servers/net-pkgproof-pkgproof/pkgproof-mcp