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API · /uuid-api

UUID API

healthy 4,485 Subscribers

A fast, fully-local identifier-generation toolkit: create UUID v4 (random), v7 (time-ordered and lexicographically sortable), v3 and v5 (name-based, deterministic via MD5 and SHA-1 over a namespace plus name) and the nil UUID; generate ULIDs (sortable, Crockford base32); generate nanoids (URL-safe, with custom alphabet and size); and validate any UUID, reporting its version and variant. Every endpoint accepts input via the query string or the request body. Built on Node crypto, no third-party upstream, so responses are instant and always available. Ideal for databases and primary keys, distributed systems, idempotency and correlation keys, and general developer tooling.

#uuid #ulid #nanoid #id-generator #guid #dev-tools
api.oanor.com/uuid-api
Get an API key Try in playground → Contact provider

Machine-readable spec so AI agents can integrate this API.

/api/uuid-api/openapi.json
/api/uuid-api/llms.txt

Discovery: GET /api/index.json lists every API.

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
70 ms
Server probes · 24h
Subscribers
4,485
active
Total calls
30
last 7 days
status Full status page → · 30 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 20,000 calls / month
  • 5 requests / second
  • Hard cap (429 above quota, no overage)
  • 20,000 IDs/month, 5 req/s
  • All generators: UUID v3/v4/v5/v7/nil, ULID, nanoid + validation
  • No credit card
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Basic

€3.00 /month

  • 320,000 calls / month
  • 20 requests / second
  • Hard cap (429 above quota, no overage)
  • 320,000 IDs/month, 20 req/s
  • All UUID/ULID/nanoid endpoints + version/variant validation
  • Custom nanoid alphabet & size
  • Commercial use included
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Pro

€11.00 /month

  • 1,800,000 calls / month
  • 60 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,800,000 IDs/month, 60 req/s
  • Full generator set incl. time-ordered v7 & ULID
  • Batch generation via body
  • Email support
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Mega

€29.00 /month

  • 9,500,000 calls / month
  • 200 requests / second
  • Hard cap (429 above quota, no overage)
  • 9,500,000 IDs/month, 200 req/s
  • Highest throughput for idempotency & correlation keys
  • All endpoints
  • Priority support
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PremiumApi

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api.oanor.com/hash-api

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api.oanor.com/astronomy-api

Geohash API

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api.oanor.com/geohash-api

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api.oanor.com/bcrypt-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for UUID API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call UUID API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for UUID 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 UUID API cost?
UUID API has a free tier with 100 calls / month. Paid plans start at €3.00 / 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 UUID API GDPR-compliant?
All requests to UUID 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/uuid-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/uuid-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/uuid-api/SOME_PATH");
curl_setopt($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/uuid-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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