# CTFd MCP Server

> Use this tool when you need to interact with CTFd instances, authenticate AI tools, and automate tasks such as retrieving challenges and submitting flags. It solves problems related to Capture The Flag (CTF) competition automation, providing a lightweight MCP server for seamless integration. The tool accepts authentication credentials as input and outputs challenge data and flag submission results, ideal for use in CTF competition environments.

Canonical page: https://skillsregistry.net/skills/mrjamescot-ctfd-mcp-server  
JSON: https://api.skillsregistry.net/v1/skills/mrjamescot-ctfd-mcp-server

## Description

A lightweight MCP server for interacting with CTFd instances, enabling AI tools to authenticate, retrieve challenges, and submit flags.

## Trust

- **Trust score (0–1):** 0.81
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-28

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/tdqwl0ydmn)
- **Repository:** <https://github.com/MrJamescot/ctfd-mcp-server>

## 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": "mrjamescot-ctfd-mcp-server"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/mrjamescot-ctfd-mcp-server` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/mrjamescot-ctfd-mcp-server/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