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.
Re-check ONE listing's price, availability and condition, cheaply. Give it the Swappa listing code you already hold and it returns what the seller is asking right now, whether the listing is still buyable, and the condition grade — and nothing else: no photos, description, specs, seller block or reviews. Built for refreshing a catalogue you already have rather than discovering listings. It reads the small slide-over card Swappa's own grid fetches on hover instead of the whole listing page, so it costs a fraction of `product_detail` — measured live on nine listings across nine product lines: 6.8-11.5 KB against 122.3-171.0 KB for a full `product_detail` (10.7x-19.7x), or 73.5-82.6 KB with its reviews switched off (6.4x-10.9x). Remember what a Swappa listing IS: one specific used device from one seller, not a catalogue entry — when it sells, Swappa takes it down, and this action then returns NOT_FOUND. That is the answer, not a failure: it means the unit you were tracking is gone.
curl -X POST https://api.reefapi.com/swappa/v1/price \
-H "x-api-key: $REEF_KEY" \
-H "content-type: application/json" \
-d '{"listing_id":"LAGY58046"}'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 |