Praetorium
MCP serverDev toolsPublic Warhammer 40K rules, datasheets, points and missions; sign in to manage rosters and battles.
Available today. Use it from your connected AI after setup.
No other account needed.
Add ahel to your AI once: Claude, ChatGPT, Cursor, Claude Code or Codex. Then ask it to use this.
Then ask your AI: use Praetorium to search reference
Install Praetorium
The server’s own address, for the clients that take one directly. Or connect ahel onceand every client you use reads it from one address, with the account kept on ahel rather than in each client’s config.
Claude Code
claude mcp add --transport http --scope user praetorium 'https://praetorium.gg/mcp'Run it once in your project, then open /mcp to approve any sign-in the server asks for.
Claude Desktop
https://praetorium.gg/mcpAdd a custom connector in Settings, paste this address, and approve the sign-in.
Cursor
cursor://anysphere.cursor-deeplink/mcp/install?name=praetorium&config=eyJ1cmwiOiJodHRwczovL3ByYWV0b3JpdW0uZ2cvbWNwIn0=Open the link and Cursor adds the server at that address.
ChatGPT
https://praetorium.gg/mcpIn Settings, enable Developer mode, create an MCP app, and paste this address. Your plan and workspace must allow custom apps.
Codex
codex mcp add praetorium --url 'https://praetorium.gg/mcp'Run it once, then sign in with codex mcp login praetorium if the server asks for an account.
From the project's README
As published by richardsolomou/praetorium.gg in README.md.
Warhammer 40,000 army building and game tracking, from setup to final score.
Product
Praetorium is a free, open source Warhammer 40,000 army builder and battle tracker. Build and share lists, browse the community catalogue, and compare units in the combat simulator. Play 1v1, 2v1, or 2v2 games with friends, or run a practice game. Track setup, turns, scoring, and casualties.
Anyone can watch public battles and see the leaderboard. Players can control who sees their battles and run league events with sealed rosters.
Scope
Praetorium does not provide matchmaking, chat, tournament pairings, or a rules encyclopedia. An account is required to play or to keep a list, though not to watch a public battle, read the leaderboard, or try the roster builder.
This repository contains no game data. The service uses verified snapshots from the configured community sources.
Use
praetorium.gg is the supported service and the easiest way to use Praetorium. It keeps the community rules data current and saves your rosters and battles.
The public reference is available without an account: faction datasheets, missions, and rules. Each page reads the service's verified community data snapshot.
The source is open so anyone can inspect the product and contribute to it. Contributing covers running a local development copy.
Development
See Contributing to run the app and its checks, Architecture for code placement, and AGENTS.md for coding-agent rules.
Data and trademarks
Catalogue definitions come from BSData. Rules data comes from 40kdc-data under CC BY 4.0. See catalogue/README.md for all sources and licenses.
Warhammer 40,000 and related marks belong to Games Workshop. Praetorium is unofficial and is not endorsed by Games Workshop.
Praetorium is licensed under the GNU Affero General Public License v3.0.
Tools it offers (6)
What this server listed when ahel dialed its public endpoint in Sep 2026, with no key and no account of yours. The names are the server’s own.
search_referenceget_referenceget_reference_recordlist_factionslist_referencelist_units
Signals
- Last commit
- Sep 2026
Advanced
- Delivery
- praetorium MCP server → your ahel connector (mcp.ahel.ai) → your AI.
- Item type
- mcp-server
- Key
io-github-richardsolomou-praetorium- Source
- github.com/richardsolomou/praetorium.gg
- Hosted endpoint
https://praetorium.gg/mcp