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API · /keypair-api

Key Pair API

healthy 3,492 Subscribers

Generate cryptographic key pairs on demand — RSA (2048/3072/4096), elliptic-curve (P-256, P-384, P-521, secp256k1), Ed25519 and Ed448 — returned as PEM (SPKI public key, PKCS#8 private key) and, optionally, as JWK. Perfect for spinning up JWT/JWS signing keys, TLS and SSH experiments, test fixtures and demos. Pure local generation with Node's crypto (no third-party service). Note: for development, testing and education — generate keys for production systems offline or in an HSM, never trust a remote API with real private keys. Live, nothing stored. 3 endpoints. Distinct from JWT signing, password generation and hashing.

#keypair #rsa #ed25519 #cryptography #developer-tools #security
api.oanor.com/keypair-api
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Machine-readable spec so AI agents can integrate this API.

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

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

Key Pair API — live data on the oanor API marketplace

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
72 ms
Server probes · 24h
Subscribers
3,492
active
Total calls
57
last 7 days
status Full status page → · 9 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 1,160 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,160 calls/month
  • 2 req/sec
  • RSA/EC/Ed25519/Ed448, PEM+JWK
  • No credit card
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Starter

€3.40 /month

  • 11,000 calls / month
  • 8 requests / second
  • Hard cap (429 above quota, no overage)
  • 11k calls/month
  • 8 req/sec
  • All sizes and curves
  • Email support
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Pro

€23.00 /month

  • 148,000 calls / month
  • 20 requests / second
  • Hard cap (429 above quota, no overage)
  • 148k calls/month
  • 20 req/sec
  • JWT-key / test-fixture pipelines
  • Priority support
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Mega

€59.00 /month

  • 760,000 calls / month
  • 50 requests / second
  • Hard cap (429 above quota, no overage)
  • 760k calls/month
  • 50 req/sec
  • Platform scale
  • Dedicated SLA
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The open music-metadata database as an API — artists, release-groups (albums), releases, recordings and labels, identified by stable MusicBrainz IDs (MBIDs), returned as clean JSON. Search any entity by name or Lucene query; look up an artist with their external links and tags, an album, a release with its full track list, a recording with its ISRCs, or a label; and browse an artist's complete discography. Live data with MBIDs, disambiguations, types, countries, life spans, ISRCs, barcodes, catalogue numbers and relations — the canonical identifiers that link and de-duplicate music data across services. Ideal for metadata enrichment and matching, music catalogues, tagging and library tools, and research. 11 data endpoints. Authenticated with an x-oanor-key; fair-use rate limits per plan.

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Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Key Pair API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Key Pair API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Key Pair 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 Key Pair API cost?
Key Pair API has a free tier with 100 calls / month. Paid plans start at €3.40 / 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 Key Pair API GDPR-compliant?
All requests to Key Pair 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/keypair-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/keypair-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/keypair-api/SOME_PATH");
curl_setopt($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/keypair-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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