FoilioGuides

About Foilio

A free card tool that shows its sources

Foilio is a free, independent tool for trading card collectors and sellers across Pokémon, Magic: The Gathering, Yu-Gi-Oh!, One Piece and Disney Lorcana. Search any card, scan a stack, track a collection's value, check whether a card is worth grading, and turn cards into listings, no account required. The rest of this page names every data source, and says what our value estimates are not.

Where our data comes from

Every card detail, image and price on Foilio comes from the free, public catalog APIs and data files listed below, attributed to their source. We do not scrape marketplace pages, and we never invent a number.

Scryfall
Magic: The Gathering card data, images and prices (EUR/USD).
TCGdex
Pokémon card data and prices, including Cardmarket EUR trend and TCGplayer-derived USD.
Cardmarket
Cardmarket's published product and price guide download files, used for our Gold Star study.
YGOPRODeck
Yu-Gi-Oh! card data and prices.
Lorcast
Disney Lorcana card data and prices (with required Ravensburger attribution).
Api TCG
One Piece and several other games' card catalogs (catalog data, not prices).
PSA Public API
PSA certification and population lookups on the grading page.
TCGCSV
TCGplayer market prices in USD (tcgcsv.com) for games with no free per-card Cardmarket feed.
Frankfurter
EUR/USD exchange rates (frankfurter.app) for the US versus EU price comparisons.

Prices shown in EUR come from Cardmarket trend data (via TCGdex, or Cardmarket's own price guide files) and Scryfall; USD prices are TCGplayer-derived. They are reference estimates, not a record of any specific completed sale. See how we price →

Our rules

The tools

How we write our guides

Our guides are original, plain-English, and held to the same rules as the tools: no invented statistics, prices or pull rates, and game-specific facts (rarity systems, grading scales, edition markers) are checked against authoritative sources. When we describe what a tool does, we describe what it actually does today, and flag what's still early.

See what your cards are really worth

Search any card free across every major game, no account, live reference data.

Try Foilio free →