Reliquary vs Archidekt: a deckbuilder beside a collection that knows its decks

Updated November 9, 2026

Choose Archidekt to build decks: it is a deckbuilding website first, with a collection tracker beside it. Choose Reliquary to know where every copy you own is and which decks claim it, and to let an assistant work with that. The two work together: build in Archidekt, export its collection as a CSV file and its decks as text, and import both into Reliquary.

At a glance

	Reliquary	Archidekt
What it is	Collection manager with an MCP server	Deckbuilding website with a collection tracker
Where it runs	Web, and any assistant that speaks MCP	Web; no App Store or Play Store app
Free	The whole collection, 5 decks, trading	Free with ads; Patreon at $2 or more removes them
Paid	Plus: every deck, $3.99 a month or $29 a year	Patreon, $2 to $25 a month (plus VAT); 5,093 paid members
Export	Moxfield or Deckbox CSV, decklists, the account as JSON	Collection as a CSV file
API	MCP server and REST API, signed in with OAuth	Public read API, undocumented by choice (2019)

Each fact is from the sources below, read on the day given. A dash: no source says.

Where they differ

The difference is allocation. In Reliquary every copy you own is in exactly one place: a binder, a box or a deck. A deck claims copies from what you own, and two decks never count the same copy without saying so: a shared copy is named with every deck that claims it and where it really is. In Archidekt, players report that a card you own shows as owned in every deck that lists it (below). Card allocation across decks has Reliquary's rules.

In Reliquary a proxy is named as one wherever it shows, and left out of a value unless you ask. Reliquary also has an MCP server and a REST API, so an assistant such as Claude or ChatGPT reads and changes your collection under the same rules, and trade matching sets your lists against the wantlist and tradelist another player publishes. What each costs, exports and offers as an API is in the table above.

Moving from Archidekt

Export the collection as a CSV file, with the columns the guide names, and choose it on Reliquary's Import page, where it is recognised by its columns. Decks come over as pasted text. The Archidekt export guide has the steps.

What players ask for and report

What players ask for or report on Archidekt's forum and on Reddit, read on 9 November 2026:

A card you own shows as owned in every deck that lists it, so a new deck can look complete when it is not; the workaround offered is tagging cards by hand. An r/EDH thread, read 9 November 2026.
A collection cannot be updated from a newer scanner export, so players delete it and import again; the team has said a view of the differences would be too heavy for large files. Archidekt's forum, read 9 November 2026.
Players have asked to take a list of sold cards out of the collection in one go. A page of cards can already be selected together, as staff have pointed out, but removing a whole list is still done by hand. Archidekt's forum, read 9 November 2026; Archidekt's forum, read 9 November 2026.
The deck builder slows on very large lists; staff say it is built for decks of a few hundred cards and point bigger lists to the collection manager. Archidekt's forum, read 9 November 2026.

Questions

Can I keep building decks in Archidekt?

Yes. Export a deck as text, paste it into Reliquary's Deck tab, open the deck and claim your cards: Reliquary takes the copies no other deck claims and lists what is missing.

Does Reliquary scan cards?

No. Cards come in from a CSV file, a pasted decklist, or a search by name, in any language Scryfall prints. A scanner app's CSV export, such as ManaBox's, imports as it is.

Can two decks use the same card?

Yes, on purpose. Claiming a copy another deck already claims is refused unless you share it, and a shared copy is then named on both decks with where it really is.

Import your collectionFree, with Google or GitHub. No card.