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OpenSea

OpenSea — free tier with API key

🪙 Crypto & Web3DEADchecked 2h ago
AUTH APIKEYCORS ✓AGENT ?HTTPS ✓COMMERCIAL ?

OpenSea exposes a free-tier JSON API. Register for an API key if required; we verified a public or demo endpoint.

0HOW IT'S SCORED ⓘ
Docs ↗
Status badge · for your READMEshipapis health badge: 0 · dead
🪦 DEADTHE GRAVEYARD
Uptime history
0.0%90 days
0.0%30 days
—P50 · ms
—P95 · ms
operationalpartialdownno data
Live response samplecaptured by our last successful check
GET https://api.opensea.io/api/v2/collections/doodles-official&quot

{
  "errors": [
    "Missing an API Key, which is required for this request."
  ]
}
Call itcurl · fetch · python
curl "https://api.opensea.io/api/v2/collections/doodles-official&quot"
const res = await fetch("https://api.opensea.io/api/v2/collections/doodles-official&quot");
const data = await res.json();
console.log(data);
import requests

res = requests.get("https://api.opensea.io/api/v2/collections/doodles-official&quot")
print(res.json())

THIS API IS DEAD — NOTHING TO RUN

Endpoints · 6DeadFULL DOCS ↗
Offline — GET /api/v2/collections/doodles-official&quot no longer responds reliably
GET/api/v2/collections/doodles-official&quotPROBED

OpenSea — free tier with API key

GET/api

Api — documented GET route.

GET/api/1

Api details by ID (example: 1).

GET/api?limit=10

Api — documented GET route.

GET/api/search?q=test

Search by query parameters.

GET/api/v2/traits/{slug}

Get collection traits

Machine-readable spec

We probe a documented GET and expect 2xx JSON — full uptime and health score. Export includes every documented route below.

Response-shape history

Stable. No schema drift observed since monitoring began — the response shape has not changed under our checks.

OpenSea: common questions

Is OpenSea free to use?

Yes — OpenSea is a free crypto & web3 API. Free tier: Free tier — API key required. Whether the free tier allows commercial use is unclear — check the provider docs.

Does OpenSea need an API key?

Yes — OpenSea needs a free API key, which you pass on each request. Rate limits: Unpublished.

Can I call OpenSea from the browser?

Yes — OpenSea returns CORS headers over HTTPS, so front-end code can fetch it directly with no backend proxy. Use the fetch snippet on this page, or hit "Run live" to try it now.

Is OpenSea up right now?

As of our last scheduled check, OpenSea is dead. We re-probe it every sweep — the status badge and uptime chart above always show the latest.