django-mcp-discovery

Exposes /.well-known/mcp-server on your Django project so AI agents can discover it via mcp://. Implements draft-serra-mcp-discovery-uri-03.

Installation

pip install django-mcp-discovery

Setup

1. Add to INSTALLED_APPS:

INSTALLED_APPS = [
    ...
    'mcp_discovery',
]

2. Include URLs:

urlpatterns = [
    ...
    path('', include('mcp_discovery.urls')),
]

3. Done. Visit https://yoursite.com/.well-known/mcp-server.

Configuration (optional)

MCP_DISCOVERY = {
    'NAME':             'My Site MCP Server',
    'ENDPOINT':         'https://mysite.com/mcp/',
    'DESCRIPTION':      'Natural language description of the server',
    'AUTH':             'none',         # none | apikey | oauth2
    'CAPABILITIES':     ['tools', 'resources'],
    'CATEGORIES':       ['e-commerce', 'fashion'],
    'LANGUAGES':        ['it', 'en'],
    'CONTACT':          'api@mysite.com',
    'DOCS':             'https://mysite.com/mcp/docs/',
    'EXPIRES_DAYS':     90,             # manifest expiry in days
    'CRAWL':            True,           # False to opt out of indexing

    # Optional — primitive previews (draft-03 Section 6.10)
    # Use a list for static tools, or 'dynamic' for dynamic ones
    'TOOLS_PREVIEW': [
        {'name': 'search_products', 'description': 'Search by category'},
        {'name': 'check_stock',     'description': 'Real-time availability'},
    ],
    'RESOURCES_PREVIEW': 'dynamic',
    'PROMPTS_PREVIEW':   'dynamic',
}

Auto-detected if not set:

• Name — from django.contrib.sites or SITE_NAME setting
• Endpoint — from SITE_URL or first non-localhost ALLOWED_HOSTS
• Language — from LANGUAGE_CODE setting

Example output

Minimal (no configuration):

{
  "mcp_version": "2025-06-18",
  "name": "My Shop MCP Server",
  "endpoint": "https://myshop.com/mcp/",
  "transport": "http",
  "auth": { "type": "none" },
  "capabilities": ["tools", "resources"],
  "languages": ["it"],
  "last_updated": "2026-03-25T00:00:00+00:00",
  "expires": "2026-09-23T00:00:00+00:00",
  "crawl": true
}

With tools_preview (draft-03 Section 6.10):

{
  "mcp_version": "2025-06-18",
  "name": "My Shop MCP Server",
  "endpoint": "https://myshop.com/mcp/",
  "transport": "http",
  "auth": { "type": "none" },
  "capabilities": ["tools", "resources"],
  "categories": ["e-commerce"],
  "languages": ["it"],
  "expires": "2026-09-23T00:00:00+00:00",
  "crawl": true,
  "tools_preview": [
    {
      "name": "search_products",
      "description": "Search products by category and material"
    },
    {
      "name": "check_stock",
      "description": "Check real-time warehouse availability"
    }
  ],
  "resources_preview": "dynamic",
  "prompts_preview": "dynamic"
}

Security

• Endpoint domain validation — custom endpoint MUST be on same domain or subdomain. Invalid endpoints fall back to default. (draft-03 Section 6.8)
• Expires field — manifest declares its own expiry date. (draft-03 Section 6.9)

Changelog

v0.3.0

• Added tools_preview, resources_preview, prompts_preview fields (draft-03 Section 6.10)
• Use a list for static previews, or 'dynamic' for dynamic ones

v0.2.0

• Security: endpoint domain validation (Section 6.8)
• Security: expires field with EXPIRES_DAYS setting (Section 6.9)

v0.1.0

• Initial release

Links

• mcpstandard.dev — specification
• IETF Draft -03
• GitHub Discussion #2462
• WordPress plugin

Author

Mumble Group — Milan, Italy — support@mumble.group