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REST base URL: https://api.vendortools.net/v1

TCG Data API · English

Union Arena TCG API

REST catalogue for Union Arena — expansions, cards, sealed products, and plan-gated market data. Same live catalogue that powers Vendor Tools; built for apps, scrapers, and AI agents that need structured TCG JSON.

Expansions

46

Cards

6,339

Sealed

0

View API docsBrowse Union Arena databaseGet an API keyGET /v1/union-arena

View available database

Explore the same Union Arena catalogue on Vendor Tools — expansions, cards, sealed products, and market prices in the public database UI. The Data API returns that catalogue as structured JSON for your app.

Open Union Arena on Vendor ToolsView all expansions

Available data

Everything under /v1/union-arena is scoped to this game. Counts above reflect public catalogue rows right now.

  • Expansions

    Set metadata — name, slug, code, series, and release date — via paginated list and detail endpoints.

  • Cards

    Singles with collector numbers, rarities, images, and game-specific fields. Filter by name, rarity, or number.

  • Sealed products

    Booster boxes, ETBs, and other sealed SKUs linked to each expansion.

  • Market pricing

    Beginner+ plans unlock consensus GBP plus eBay, CardTrader, and PriceCharting source nests on card and sealed detail.

  • Graded population

    Pro / Enterprise: cached ACE and PSA population reports on card population routes.

  • On-demand refresh

    POST pricing/refresh when a lookup is older than 48 hours (Beginner+, 3 request units per call).

Sample expansions

Use these slugs in /v1/union-arena/expansions/{expansionSlug}. Open any set on the Vendor Tools database to browse cards in the UI.

Routes for apps & AI agents

Stable REST paths under https://api.vendortools.net/v1. Authenticate with a Bearer API key. Ideal for tool-calling agents that browse catalogue JSON and refresh pricing when needed.

  • GET

    /v1/union-arena

    Game metadata. Name, language, logo, and cover for this TCG.

  • GET

    /v1/union-arena/expansions

    List expansions. Paginated sets / products for the game.

  • GET

    /v1/union-arena/expansions/{expansionSlug}

    Expansion detail. Single expansion metadata (code, series, release date).

  • GET

    /v1/union-arena/expansions/{expansionSlug}/cards

    List cards. Paginated singles with optional name / rarity / collectorNumber filters.

  • GET

    /v1/union-arena/expansions/{expansionSlug}/cards/{cardSlug}

    Card detail. One card — identity fields plus plan-gated pricing.

  • GET

    /v1/union-arena/expansions/{expansionSlug}/sealed

    List sealed products. Booster boxes, ETBs, and other sealed SKUs for the set.

  • GET

    /v1/union-arena/expansions/{expansionSlug}/sealed/{sealedSlug}

    Sealed detail. One sealed product with optional market pricing.

  • GET

    /v1/union-arena/expansions/{expansionSlug}/cards/{cardSlug}/population

    Graded population. Cached ACE and PSA population reports for a card. (Pro / Enterprise)

  • POST

    /v1/union-arena/expansions/{expansionSlug}/cards/{cardSlug}/pricing/refresh

    Refresh card pricing. On-demand marketplace refresh when the last lookup is older than 48h. (Beginner+ · 3 request units)

  • POST

    /v1/union-arena/expansions/{expansionSlug}/sealed/{sealedSlug}/pricing/refresh

    Refresh sealed pricing. Same freshness rules as card pricing refresh. (Beginner+ · 3 request units)

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