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Biggest price gainers or losers on Collectr by percent or by amount, for one game or all, cards or sealed, optionally above a minimum price so cheap bulk does not dominate. One row per variant.
Gainers or losers.
Rank by percent or by amount.
Game or collectible category by name (pokemon, magic, yugioh, one_piece, lorcana, …) or Collectr category id. `categories` lists them all.
Card language: en, jp or cn (Pokémon has all three; most games are English only).
Singles, sealed product, or both.
Lowest market price, USD (inclusive). (0–)
Highest market price, USD (inclusive). Products with no price yet match a max-only range. (0–)
Page number; Collectr serves 30 rows a page. (1–300)
Rows to return from the page (1-30). (1–30)
Currency for every price. Collectr publishes USD; other currencies use Collectr's own daily exchange rate (returned as exchange_rate).
How many fresh exits to try before giving up. (1–5)
curl -X POST https://api.reefapi.com/collectr/v1/movers \
-H "x-api-key: $REEF_KEY" \
-H "content-type: application/json" \
-d '{"category":"pokemon"}'Press Send request to see the live result here.
Not sure what to send? Ask Reef AIWhat you can run here, without an account
ReefAPI is one HTTP gateway to 632 live web-data APIs covering 3860 endpoints across 13 categories. Every endpoint answers with the same JSON envelope, so one integration reaches all of them. Each response reports what it cost and when the source was read.
No signup, no API key and no card are required to try an endpoint on this page. Anonymous calls run on a shared demo key, capped at 15 calls per hour per visitor. Pick an API, fill the parameters and the real response comes back from the live source, not from a canned sample. A free account lifts the cap and gives you 1,000 credits and your own key.
Browse every API in the catalog, read an endpoint's fields and example response in the docs, or see per-call credit costs on the pricing page.
Coverage by category
| ecommerce | 350 |
| classifieds | 116 |
| real-estate | 29 |
| media | 25 |
| utilities | 18 |
| jobs | 18 |
| developer-tools | 18 |
| reviews | 15 |
| social | 15 |
| search-seo | 11 |
| travel | 8 |
| other | 5 |
| finance | 4 |