MTG Bench
com.mtgbench/mtgbench · 0.52.2
Magic: The Gathering card search, rules, rulings, deck analysis, brackets, and combo detection.
Nobody here has read this server's code, because it publishes none. The description above is the maker's own, from the registry. A connection test shows whether it answers and what tools it says it has; it never calls a tool, so it cannot show what one does with your data.
Where it sits in the directory's order
What can be seen from outside, weighed as the directory publishes.
Observable signals: 45 of 100 points (at most 60 here)
| Input | Points | What was seen |
|---|---|---|
| Source published | held at 0 | No entry here publishes source: that is what puts it in this directory. |
| Licence stated | held at 0 | With no files, there is nothing for a licence to be stated in or held against. |
| Advisory state | held at 0 | Advisory databases index packages, and these entries publish none, so there is nothing to look up. |
| Auth declared | 0 of 15 | The registry entry declares no key. That is what it declares, not a finding that it has no protection. |
| Latest connection test reached it | 20 of 20 |
Where it answers
https://mtgbench.com/mcpstreamable-http
Connection test
The MCP handshake, then a request for the tool list, with no key and no data of yours. Run nightly, and by anyone, at most once every ten minutes per server.
It completed the handshake and listed 19 tools.
- Protocol
- 2025-06-18
- Calls itself
- mtg-mcp dev
- Handshake time
- 187 ms
- HTTP status
- 200
The tools it lists (19, as of 4 days ago)
The tool-description rules found nothing in these descriptions. They look for instructions aimed at a model and for hidden characters; they cannot see what a tool does when it runs.
check_deck_legalityValidate a decklist against a constructed format's rules (banned cards, deck size, copy limits, and in Commander the color-identity rule). Use this rather than recalling ban lists from memory: bans changed four times in 2026 alone, and a model's training cutoff makes stale ban data one of the most common wrong answers in Magic. Pass `commander` for Commander decks: it counts toward the 100, and it is what makes the color-identity check possible (without it the response says color identity went unchecked).
commander_staplesThe cards most commonly played with a given commander, from EDHREC's aggregate inclusion data: 691,958 commander-card pairings across 2,631 commanders. Returns each card's deck count, the share of that commander's decks running it, and its synergy score. Synergy matters as much as popularity: a high deck count with LOW synergy is a card everyone plays anyway (Sol Ring), while high synergy is a card that is unusually good with this commander specifically. Lead with the latter when recommending. Use this to ground deckbuilding in what people actually play instead of guessing.
deck_statsDeterministic statistical analysis of a decklist (any format): mana curve with creature split, card types, color pips vs mana sources, functional buckets (ramp/draw/removal/wipes/counters/recursion/protection/tutors + bracket signals) with typical Commander bands, opening-hand probabilities (hypergeometric), a suggested land count, meta brew score, deck price, tribal and keyword counts. Pure data — no judgment calls.
find_combosDetect known combos in a decklist using Commander Spellbook's curated database — combos fully present, plus near-misses one card away (with that card's price). Pass `format` (and `commander` for Commander) so near-miss suggestions are filtered to legal, in-color-identity adds. Use this instead of recalling combos from memory; also feeds rate_deck's compact-combo check.
How this entry becomes a listing
For the maker. The catalogue lists what it can read, and this server publishes nothing to read yet. There are two routes, and only the first is open today.
Publish the source Open today
- Put the server's source in a public repository on github.com, with a licence.
- Keep a server.json in that repository naming this server,
com.mtgbench/mtgbench, and declare the repository in it:"repository": { "url": "https://github.com/owner/repo", "source": "github" }, adding"subfolder"when the server lives in a folder. - Publish that version to the official MCP registry.
- The nightly registry sweep records the declaration. This page stays, dated, and says the source is declared but not yet read.
- The catalogue reads declared repositories at a pinned commit, in batches run by hand, and lists the servers that meet the batch's rules (among them a server.json at that commit naming the server, an https endpoint and a licence). When it lists this server, this page links to the listing. There is no schedule, so no date can be promised.
List it through the maker studio Not open yet
From the official MCP registry, last updated there 60 days ago. The registry entry · mtgbench.com