Koskamo

CTFd MCP Server

An MCP server that connects AI agents to CTFd v3 instances. It supports multiple authentication modes (API token, cookie, or password), allows listing and filtering challenges, submitting flags safely, and querying instance health and state. It provides both MCP tools over stdio/SSE and an optional FastAPI REST interface.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

CTFd MCP Server logo, by MrJamescotCommunity listingLocal stdioSource reviewed; not executedPublished by MrJamescot
Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

  • Popularity 7 GitHub stars

What you can do with it

  • List and filter challenges by category or solved status
  • Submit flags for CTF challenges with confirmation
  • Query instance health and authentication status
  • Inspect detailed challenge information

Source and maintenance

Community listingRegistry 1.0.4MIT
mcp-registry: io.github.MrJamescot/ctfd-mcp-server@1.0.4Source repository
Last repository push
Latest release
v1.0.4
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

ctfd-mcp-server 1.0.4

pypiuvx
ctfd-mcp-server package definition
{
  "version": "1.0.4",
  "transport": "stdio",
  "identifier": "ctfd-mcp-server",
  "runtimeHint": "uvx",
  "registryType": "pypi",
  "environmentVariables": [
    {
      "name": "CTFD_BASE_URL",
      "format": "string",
      "isRequired": true,
      "description": "Root URL of the CTFd v3 instance, e.g. https://ctf.example.com (without /api/v1)"
    },
    {
      "name": "CTFD_ADMIN_TOKEN",
      "format": "string",
      "description": "CTFd API access token (preferred authentication method)"
    },
    {
      "name": "CTFD_SESSION_COOKIE",
      "format": "string",
      "description": "Full CTFd session cookie, e.g. session=abc..."
    },
    {
      "name": "CTFD_USERNAME",
      "format": "string",
      "description": "Username for CTFd form login"
    },
    {
      "name": "CTFD_PASSWORD",
      "format": "string",
      "description": "Password for CTFd form login"
    },
    {
      "name": "CTFD_HTTP_TIMEOUT",
      "format": "number",
      "description": "Per-request HTTP timeout in seconds (default 15)"
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · repository · passed · metadata changed · updated
  • · backfill · recorded · Pre-expansion baseline; unobserved rich metadata remains unknown

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "ctfd-mcp-server": {
      "command": "uvx",
      "args": [
        "ctfd-mcp-server==1.0.4"
      ],
      "env": {
        "CTFD_BASE_URL": "<YOUR_CTFD_BASE_URL>",
        "CTFD_ADMIN_TOKEN": "<YOUR_CTFD_ADMIN_TOKEN>",
        "CTFD_SESSION_COOKIE": "<YOUR_CTFD_SESSION_COOKIE>",
        "CTFD_USERNAME": "<YOUR_CTFD_USERNAME>",
        "CTFD_PASSWORD": "<YOUR_CTFD_PASSWORD>",
        "CTFD_HTTP_TIMEOUT": "<YOUR_CTFD_HTTP_TIMEOUT>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "ctfd-mcp-server": {
      "command": "uvx",
      "args": [
        "ctfd-mcp-server==1.0.4"
      ],
      "env": {
        "CTFD_BASE_URL": "<YOUR_CTFD_BASE_URL>",
        "CTFD_ADMIN_TOKEN": "<YOUR_CTFD_ADMIN_TOKEN>",
        "CTFD_SESSION_COOKIE": "<YOUR_CTFD_SESSION_COOKIE>",
        "CTFD_USERNAME": "<YOUR_CTFD_USERNAME>",
        "CTFD_PASSWORD": "<YOUR_CTFD_PASSWORD>",
        "CTFD_HTTP_TIMEOUT": "<YOUR_CTFD_HTTP_TIMEOUT>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "ctfd-mcp-server": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "ctfd-mcp-server==1.0.4"
      ],
      "env": {
        "CTFD_BASE_URL": "<YOUR_CTFD_BASE_URL>",
        "CTFD_ADMIN_TOKEN": "<YOUR_CTFD_ADMIN_TOKEN>",
        "CTFD_SESSION_COOKIE": "<YOUR_CTFD_SESSION_COOKIE>",
        "CTFD_USERNAME": "<YOUR_CTFD_USERNAME>",
        "CTFD_PASSWORD": "<YOUR_CTFD_PASSWORD>",
        "CTFD_HTTP_TIMEOUT": "<YOUR_CTFD_HTTP_TIMEOUT>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "ctfd-mcp-server": {
      "command": "uvx",
      "args": [
        "ctfd-mcp-server==1.0.4"
      ],
      "env": {
        "CTFD_BASE_URL": "<YOUR_CTFD_BASE_URL>",
        "CTFD_ADMIN_TOKEN": "<YOUR_CTFD_ADMIN_TOKEN>",
        "CTFD_SESSION_COOKIE": "<YOUR_CTFD_SESSION_COOKIE>",
        "CTFD_USERNAME": "<YOUR_CTFD_USERNAME>",
        "CTFD_PASSWORD": "<YOUR_CTFD_PASSWORD>",
        "CTFD_HTTP_TIMEOUT": "<YOUR_CTFD_HTTP_TIMEOUT>"
      }
    }
  }
}

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