Try any of 2778 endpoints — live.
Pick an endpoint, load a working example, tweak the params, and send — no signup to try. Results render the way the data deserves; raw JSON, headers & code are one tab away.
One BOOK-OFF product in full: title, author, category and sub-genre, the 13-digit JAN (republished as `isbn13` when it really is a 978/979 Bookland code — ISBN-10 is never derived from it), publisher, release date, description, and the category-specific rows the source prints — catalogue number on CD, DVD and games, disc count and the full track list on CD and DVD, cast and the director/writer/composer credit row on DVD (enumerated over 18 live pages, three per genre; artist and platform are NOT published as rows and are therefore absent rather than permanently null). FOUR money figures are kept apart: the price you pay, the publisher's list price, BOOK-OFF's own discount, and BOOK-OFF's own pre-markdown price with the date it applied — each cross-checked against the page's own schema.org offer. Plus STORE STOCK: how many BOOK-OFF shops have received the item and the per-prefecture breakdown. 🔴 An id alone does NOT identify an offer: `/used/<id>` and `/new/<id>` are the same product at different prices (measured 1,760 vs 2,200). Pass `condition` to choose; with it omitted the second-hand surface is tried first and then the new one, and the answer always reports which one replied. A dead id returns NOT_FOUND.
curl -X POST https://api.reefapi.com/bookoff/v1/product \
-H "x-api-key: $REEF_KEY" \
-H "content-type: application/json" \
-d '{"product_id":"0020673438","condition":"used"}'Hit Send to run this endpoint live.
What you can run here, without an account
ReefAPI is one HTTP gateway to 438 live web-data APIs covering 2778 endpoints across 14 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 | 191 |
| classifieds | 99 |
| media | 25 |
| real-estate | 21 |
| utilities | 19 |
| developer-tools | 18 |
| jobs | 17 |
| reviews | 15 |
| social | 12 |
| travel | 9 |
| finance | 5 |
| other | 3 |
| search-seo | 2 |
| government | 2 |