# io.github.doublegate/cyberchef-mcp (npm · cyberchef-mcp)

CyberChef's 504 data-transformation operations as MCP tools: encryption, encoding, forensics.

- Trust score: 46/100 (low)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- npm · `cyberchef-mcp`: 46/100 (this document), [markdown](https://verifymcp.io/servers/doublegate-cyberchef-mcp/cyberchef-mcp.md), [page](https://verifymcp.io/servers/doublegate-cyberchef-mcp/cyberchef-mcp)
- oci · `ghcr.io/doublegate/cyberchef-mcp_v4:4.2.0`: 10/100, [markdown](https://verifymcp.io/servers/doublegate-cyberchef-mcp/ghcr-io-doublegate-cyberchef-mcp-v4-4-2-0.md), [page](https://verifymcp.io/servers/doublegate-cyberchef-mcp/ghcr-io-doublegate-cyberchef-mcp-v4-4-2-0)

## Channel facts

- Registry: `npm`
- Package: `cyberchef-mcp`
- Version: `4.2.0`
- 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 2026-09-20.

- **Supply Chain Security**: 87/100
  - No malware found by supply-chain analysis.
  - A known CVE affects elliptic, but no fixed version has been published, so there is nothing to upgrade to.
  - Runs a script at install time (postinstall) that we could not recognise. It may be perfectly ordinary, but we do not read the published tarball, so we cannot say what it does.
  - Dependency health was assessed across the 400 of 452 dependencies we could resolve, so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 100/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to doublegate/CyberChef-MCP).
  - Clear OSI-approved license (GPL-3.0-or-later).
  - Actively maintained (last published 8 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 0/100
  - Schema quality not yet verified: this package installed, but its server did not start, so we have no schema to assess.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: this package installed, but its server did not start, so we have no schema to compare.
- **Tool Coverage**: 0/100
  - Tool coverage not yet verified: this package installed, but its server did not start, so we have no tool definitions to assess.
- **Tool Safety**: 0/100
  - Tool safety not yet verified: this package installed, but its server did not start, so we have no tool text to scan.
- **Capabilities**: 0/100
  - Protocol version not yet verified: this package installed, but its server did not start, so we never saw its MCP handshake.

**Unverified: 5 categories.** Categories scored 0 because our sandbox run of this package has not given us the schema these checks need to read. That is a gap on our side rather than a finding about the package, and we only credit what we can confirm, so the score stands at 0 until the capture succeeds. We are working through the fleet, so this normally clears without any action from you.

## Install

### How do I install the io.github.doublegate/cyberchef-mcp server?

io.github.doublegate/cyberchef-mcp runs locally as an npm package, launched with npx -y cyberchef-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 doublegate-cyberchef-mcp -- npx -y cyberchef-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "doublegate-cyberchef-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "cyberchef-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "doublegate-cyberchef-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "cyberchef-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add doublegate-cyberchef-mcp -- npx -y cyberchef-mcp
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add doublegate-cyberchef-mcp --command npx --arg -y --arg cyberchef-mcp
```

### Hermes

```yaml
mcp_servers:
  doublegate-cyberchef-mcp:
    command: "npx"
    args: ["-y", "cyberchef-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "doublegate-cyberchef-mcp": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "cyberchef-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add doublegate-cyberchef-mcp -t stdio -c npx -a -y cyberchef-mcp
```

### Other

```json
{
  "mcpServers": {
    "doublegate-cyberchef-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "cyberchef-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 46, +1)

- [security regression] CVE-2025-14505 affects this package
- [security] Known CVEs: A known CVE affects elliptic, but no fixed version has been published, so there is nothing to upgrade to.

### 2026-09-19 (score 45, −1)

- [security improvement] CVE-2025-14505 no longer affects this package
- [security] Known CVEs: Known CVEs were checked across the 400 of 452 dependencies we could resolve, so this covers what we could see, not the whole tree.

### 2026-09-13 (score 46, +24)

- [security improvement] Malware scan: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security] Stability: Stability not yet verified: this package installed, but its server did not start, so we have no schema to compare.
- [security] Tool safety: Tool safety not yet verified: this package installed, but its server did not start, so we have no tool text to scan.
- [functional improvement] Dependency health: unverified → partial
- [functional] Schema quality: Schema quality not yet verified: this package installed, but its server did not start, so we have no schema to assess.
- [functional] Capabilities: Protocol version not yet verified: this package installed, but its server did not start, so we never saw its MCP handshake.
- [functional] Tool coverage: Tool coverage not yet verified: this package installed, but its server did not start, so we have no tool definitions to assess.

### 2026-09-12 (score 22, −9)

- [security regression] Known CVEs: partial → unverified
- [functional regression] Dependency health: partial → unverified
- [functional] Package version: 4.0.0 → 4.2.0
- [functional] Package version: 4.0.0 → 4.1.0

### 2026-09-11 (score 31, −15)

- [security regression] Malware scan: pass → unverified
- [security] Tool safety: Tool safety not yet verified: we do not have a sandbox capture of the tool definitions this version of the package serves yet.
- [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] Schema quality: Schema quality not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional] Capabilities: Protocol version not yet verified: we do not have a sandbox capture of the MCP handshake this version of the package performs yet.
- [functional] Tool coverage: Tool coverage not yet verified: we do not have a sandbox capture of the tool definitions this version of the package serves yet.
- [functional] Package version: 3.8.0 → 4.0.0
- [functional] Package version: 3.8.0 → 3.10.0
- [functional] Package version: 3.8.0 → 3.9.0

### 2026-09-06 (score 46, +9)

- [security regression] CVE-2025-14505 affects this package
- [security improvement] Known CVEs: unverified → partial
- [security] Stability: Stability not yet verified: this package installed, but its server did not start, so we have no schema to compare.
- [security] Tool safety: Tool safety not yet verified: this package installed, but its server did not start, so we have no tool text to scan.
- [functional improvement] Dependency health: unverified → partial
- [functional] Schema quality: Schema quality not yet verified: this package installed, but its server did not start, so we have no schema to assess.
- [functional] Capabilities: Protocol version not yet verified: this package installed, but its server did not start, so we never saw its MCP handshake.
- [functional] Tool coverage: Tool coverage not yet verified: this package installed, but its server did not start, so we have no tool definitions to assess.

### 2026-09-05 (score 37, 0)

- [functional] Package version: 3.7.0 → 3.8.0

### 2026-09-04 (score 37)

First indexed and scored.

## MCP tools (0)

Tools for package channels are captured by running the package in an isolated sandbox. The most recent sandbox run could not capture a tool list from this package.

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Vulnerabilities, Dependencies. The full working is on the page: https://verifymcp.io/servers/doublegate-cyberchef-mcp/cyberchef-mcp#diagnostics

## Score history

- 2026-09-20: 46
- 2026-09-19: 45
- 2026-09-18: 46
- 2026-09-17: 46
- 2026-09-16: 46
- 2026-09-15: 46
- 2026-09-14: 46
- 2026-09-13: 46
- 2026-09-12: 22
- 2026-09-11: 31
- 2026-09-10: 46
- 2026-09-09: 46
- 2026-09-08: 46
- 2026-09-07: 46
- 2026-09-06: 46
- 2026-09-05: 37
- 2026-09-04: 37

## Common questions

### What is the io.github.doublegate/cyberchef-mcp server?

io.github.doublegate/cyberchef-mcp is listed in the public MCP registry as io.github.doublegate/cyberchef-mcp. CyberChef's 504 data-transformation operations as MCP tools: encryption, encoding, forensics. This page covers its npm package (cyberchef-mcp).

### Is the io.github.doublegate/cyberchef-mcp server safe to use?

io.github.doublegate/cyberchef-mcp scores 46 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 20 September 2026. 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.

### Is the io.github.doublegate/cyberchef-mcp server still maintained?

io.github.doublegate/cyberchef-mcp is still listed as active in the MCP registry. We last reached this channel on 20 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 io.github.doublegate/cyberchef-mcp server under?

io.github.doublegate/cyberchef-mcp declares the GPL-3.0-or-later 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/cyberchef-mcp
- Socket report: https://socket.dev/npm/package/cyberchef-mcp
- Repository: https://github.com/doublegate/CyberChef-MCP
- Changelog RSS feed: https://verifymcp.io/servers/doublegate-cyberchef-mcp/cyberchef-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/doublegate-cyberchef-mcp/cyberchef-mcp.json
- HTML version of this page: https://verifymcp.io/servers/doublegate-cyberchef-mcp/cyberchef-mcp