# Chaos Cypher (pypi · chaoscypher-cli)

Local-first knowledge graphs from your documents: build, search (GraphRAG) and edit on your machine.

- Trust score: 50/100 (low)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-04

> **Recent critical change**: CVE-2026-112398 affects this package (2026-10-24). See the changelog below before you install this server.

## Components

- pypi · `chaoscypher-cli`: 50/100 (this document), [markdown](https://verifymcp.io/servers/chaoscypherinc-chaoscypher/chaoscypher-cli.md), [page](https://verifymcp.io/servers/chaoscypherinc-chaoscypher/chaoscypher-cli)

## Channel facts

- Registry: `pypi`
- Package: `chaoscypher-cli`
- Version: `0.6.0`
- 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 2026-11-04.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs setuptools.build_meta at install time, a recognised build step with no custom scripting around it.
  - 16 of 182 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 100/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to chaoscypherinc/chaoscypher).
  - Clear OSI-approved license (AGPL-3.0-only).
  - Actively maintained (last published 7 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 0/100
  - Schema quality not yet verified: our sandbox could not run this package, so we have no schema to assess.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: our sandbox could not run this package, so we have no schema to compare.
- **Tool Coverage**: 0/100
  - Tool coverage not yet verified: our sandbox could not run this package, so we have no tool definitions to assess.
- **Tool Safety**: 0/100
  - Tool safety not yet verified: our sandbox could not run this package, so we have no tool text to scan.
- **Capabilities**: 0/100
  - Protocol version not yet verified: our sandbox could not run this package, so we never saw its MCP handshake.

**Unverified: 5 categories.** Categories scored 0 because our sandbox could not run this package, so we have no schema for these checks 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 we can run it.

## Install

### How do I install the Chaos Cypher MCP server?

Chaos Cypher runs locally as a PyPI package, launched with uvx chaoscypher-cli. 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 chaoscypherinc-chaoscypher -- uvx chaoscypher-cli
```

### Cursor

```json
{
  "mcpServers": {
    "chaoscypherinc-chaoscypher": {
      "command": "uvx",
      "args": [
        "chaoscypher-cli"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "chaoscypherinc-chaoscypher": {
      "command": "uvx",
      "args": [
        "chaoscypher-cli"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add chaoscypherinc-chaoscypher -- uvx chaoscypher-cli
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "chaoscypherinc-chaoscypher": {
      "type": "local",
      "command": [
        "uvx",
        "chaoscypher-cli"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add chaoscypherinc-chaoscypher --command uvx --arg chaoscypher-cli
```

### Hermes

```yaml
mcp_servers:
  chaoscypherinc-chaoscypher:
    command: "uvx"
    args: ["chaoscypher-cli"]
```

### Netclaw

```json
{
  "McpServers": {
    "chaoscypherinc-chaoscypher": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "chaoscypher-cli"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add chaoscypherinc-chaoscypher -t stdio -c uvx -a chaoscypher-cli
```

### Other

```json
{
  "mcpServers": {
    "chaoscypherinc-chaoscypher": {
      "command": "uvx",
      "args": [
        "chaoscypher-cli"
      ]
    }
  }
}
```

## 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.

### 2026-10-28 (score 50, +50)

- [security improvement] CVE-2026-112393 no longer affects this package
- [security improvement] CVE-2026-96639 no longer affects this package
- [security improvement] CVE-2026-112398 no longer affects this package
- [security improvement] CVE-2026-112900 no longer affects this package
- [security improvement] CVE-2026-112403 no longer affects this package
- [security improvement] Provenance: fail → pass
- [security improvement] Known CVEs: fail → pass
- [security] The attested source repository moved: chaoscypherinc/chaoscypher
- [functional improvement] Score status: failed → scored
- [functional] Package version: 0.5.0 → 0.6.0

### 2026-10-24 (score 0, 0)

- [critical regression] CVE-2026-112398 affects this package: high

### 2026-10-23 (score 0, 0)

- [critical regression] CVE-2026-96639 affects this package: high

### 2026-10-22 (score 0, 0)

- [critical regression] CVE-2026-112393 affects this package: high
- [critical regression] CVE-2026-112900 affects this package: high

### 2026-10-21 (score 0, −40)

- [critical regression] CVE-2026-112403 affects this package: high
- [critical regression] Known CVEs: pass → fail
- [critical regression] Score status: scored → failed

### 2026-10-13 (score 40, +11)

- [security improvement] Known CVEs: unverified → pass
- [functional improvement] Dependency health: unverified → 0.97

### 2026-10-12 (score 29, −11)

- [security regression] Known CVEs: pass → unverified
- [functional regression] Dependency health: 0.97 → unverified

### 2026-09-28 (score 0)

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

## MCP tools (0)

Tools for package channels are captured by running the package in an isolated sandbox. Our sandbox could not run this package, so no tool list has been captured. That is a gap on our side, not a finding about the package.

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/chaoscypherinc-chaoscypher/chaoscypher-cli#diagnostics

## Score history

- 2026-11-04: 50
- 2026-11-03: 50
- 2026-11-02: 50
- 2026-11-01: 50
- 2026-10-31: 50
- 2026-10-30: 50
- 2026-10-29: 50
- 2026-10-28: 50
- 2026-10-27: 0
- 2026-10-26: 0
- 2026-10-25: 0
- 2026-10-24: 0
- 2026-10-23: 0
- 2026-10-22: 0
- 2026-10-21: 0
- 2026-10-20: 40
- 2026-10-19: 40
- 2026-10-18: 40
- 2026-10-17: 40
- 2026-10-16: 40
- 2026-10-15: 40
- 2026-10-14: 40
- 2026-10-13: 40
- 2026-10-12: 29
- 2026-10-04: 40
- 2026-10-03: 40
- 2026-10-02: 40
- 2026-10-01: 40
- 2026-09-30: 40
- 2026-09-29: 40

## Common questions

### What is the Chaos Cypher MCP server?

Chaos Cypher is an MCP server listed in the public MCP registry as io.github.chaoscypherinc/chaoscypher. Local-first knowledge graphs from your documents: build, search (GraphRAG) and edit on your machine. This page covers its PyPI package (chaoscypher-cli).

### Is the Chaos Cypher MCP server safe to use?

Chaos Cypher scores 50 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 4 November 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 Chaos Cypher MCP server still maintained?

Chaos Cypher is still listed as active in the MCP registry. We last reached this channel on 4 November 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 Chaos Cypher MCP server under?

Chaos Cypher declares the AGPL-3.0-only licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- PyPI project: https://pypi.org/project/chaoscypher-cli/
- Socket report: https://socket.dev/pypi/package/chaoscypher-cli
- Repository: https://github.com/chaoscypherinc/chaoscypher
- Website: https://chaoscypher.com/
- Changelog RSS feed: https://verifymcp.io/servers/chaoscypherinc-chaoscypher/chaoscypher-cli.xml
- Changelog JSON feed: https://verifymcp.io/servers/chaoscypherinc-chaoscypher/chaoscypher-cli.json
- HTML version of this page: https://verifymcp.io/servers/chaoscypherinc-chaoscypher/chaoscypher-cli