ChatGPT plugin
Tournament deck comparison inside ChatGPT.
Find TopDeck lists with the same commander, compare cards, and check Scryfall names and legality in ChatGPT or Codex.
Availability
Developer preview
The production server is live, but a public listing in the ChatGPT and Codex Plugins Directory is not yet available. Developers can connect the universal MCP endpoint at https://cedhdiff.com/mcp for testing.
Example prompts
- Check this decklist’s commander, card count, and unrecognized card names.
- Find recent TopDeck tournament lists with exactly the same commander as this deck.
- Compare my deck with this tournament list. Show shared cards and cards unique to each deck.
- Look up these cards on Scryfall and show Commander legality and source links.
Sources and limits
Results link to TopDeck and Scryfall. Comparisons require the same commander or partner pair and show card differences, not add or cut advice. The connection is read-only.