Species by scientific name or taxon id
API · /redlist-api
IUCN Red List API
healthy
3,842 Subscribers
The conservation status of assessed species from the IUCN Red List as an API — the reference a wildlife, conservation, education or research application needs. For each of 150,000+ assessed species the API returns its scientific name, common name, taxonomy (kingdom, class, family), the IUCN Red List category (CR critically endangered, EN endangered, VU vulnerable, NT near threatened, LC least concern, DD data deficient, EW extinct in the wild, EX extinct) and the IUCN taxon id. Look a species up by scientific name, search by scientific or common name, list every species in a Red List category (e.g. all critically endangered) or in a taxonomic class (e.g. all assessed mammals), and read a full category breakdown. Distinct from worms-api (the marine-species taxonomy register) — this is the conservation-status reference. Served from memory — always fast.
api.oanor.com/redlist-api
API health
healthy- Uptime
- 100.00%
- Server probes · 24h
- Avg latency
- 82 ms
- Server probes · 24h
- Subscribers
- 3,842
- active
- Total calls
- 95
- last 7 days
Pricing
Pick a tier — billed monthly, cancel anytime.
Free
Free
- 14,000 calls / month
- 3 requests / second
- Hard cap (429 above quota, no overage)
- 14k calls/month
- 3 req/sec
- All endpoints
- No credit card
Starter
€6.00 /month
- 150,000 calls / month
- 10 requests / second
- Hard cap (429 above quota, no overage)
- 150k calls/month
- 10 req/sec
- Email support
Pro
€18.00 /month
- 750,000 calls / month
- 25 requests / second
- Hard cap (429 above quota, no overage)
- 750k calls/month
- 25 req/sec
- Priority support
Mega
€42.00 /month
- 3,800,000 calls / month
- 60 requests / second
- Hard cap (429 above quota, no overage)
- 3.8M calls/month
- 60 req/sec
- Dedicated SLA
Built by
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Frequently asked questions
Quick answers about pricing, quotas, and integration.
How do I get an API key for IUCN Red List API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call IUCN Red List API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for IUCN Red List API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does IUCN Red List API cost?
IUCN Red List API has a free tier with 100 calls / month. Paid plans start at €6.00 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is IUCN Red List API GDPR-compliant?
All requests to IUCN Red List API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.
Pick an endpoint from the list on the left to see its details and try it.
Code snippets
Sign up to get an API key, then call any path under your slug.
curl https://api.oanor.com/redlist-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."const res = await fetch("https://api.oanor.com/redlist-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();$ch = curl_init("https://api.oanor.com/redlist-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);import requests
r = requests.get(
"https://api.oanor.com/redlist-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())Ratings
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