# Otto Support

> Use this tool when you need to practice penetration testing techniques in a controlled environment, simulating real-world customer support system vulnerabilities. Otto Support provides a deliberately vulnerable MCP server with tiered authentication and intentional security flaws, allowing security researchers to test their skills. Ideal for security research and education, it offers 19 tools with four role levels to mimic various scenarios.

Canonical page: https://skillsregistry.net/skills/bishopfox-otto-support  
JSON: https://api.skillsregistry.net/v1/skills/bishopfox-otto-support

## Description

Otto Support is a deliberately vulnerable MCP server simulating a customer support system, created by BishopFox for security research and education. It implements 19 tools with tiered authentication (four role levels) and intentional security flaws, enabling security researchers to practice MCP penetration testing techniques in a controlled environment.

## Trust

- **Trust score (0–1):** 0.59
- **Verification tier:** scanned
- **Last scanned:** 2026-09-01

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** security
- **Updated:** 2026-09-01

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/bishopfox-otto-support)
- **Repository:** <https://github.com/bishopfox/otto-support>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "bishopfox-otto-support"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/bishopfox-otto-support` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/bishopfox-otto-support/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt