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API · /classical-api

Classical Music API

healthy 3,611 Subscribers

The classical-music repertoire as an API — powered by Open Opus, an open catalogue of classical composers and their works. Search composers by name or browse them by musical epoch (Medieval, Renaissance, Baroque, Classical, Romantic and beyond), getting each composer's full name, epoch and birth/death years; then list a composer's works, optionally filtered by genre — orchestral, chamber, keyboard, stage, vocal or opera. From Bach and Mozart to Beethoven's 44 orchestral works, it turns the canon of classical music into a clean search-and-browse API. A classical-music repertoire reference — distinct from commercial music catalogues of tracks, artists and albums. Ideal for classical-music, education, concert-programming, streaming and media applications. Open data from Open Opus (CC-BY-SA / CC0).

#classical-music #composers #music #culture #education #open-opus
api.oanor.com/classical-api
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Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
393 ms
Server probes · 24h
Subscribers
3,611
active
Total calls
3
last 7 days
status Full status page → · 6 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 2,230 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 2,230 calls/month
  • 2 req/sec
  • Composers + works
  • No credit card
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Starter

€6.25 /month

  • 44,500 calls / month
  • 8 requests / second
  • Hard cap (429 above quota, no overage)
  • 44.5k calls/month
  • 8 req/sec
  • Browse by epoch & genre
  • Email support
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Pro

€20.60 /month

  • 223,000 calls / month
  • 20 requests / second
  • Hard cap (429 above quota, no overage)
  • 223k calls/month
  • 20 req/sec
  • Music & education apps
  • Priority support
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Mega

€56.30 /month

  • 820,000 calls / month
  • 50 requests / second
  • Hard cap (429 above quota, no overage)
  • 820k calls/month
  • 50 req/sec
  • Music-catalogue platform
  • Dedicated SLA
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Built by

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Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Classical Music API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Classical Music API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Classical Music 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 Classical Music API cost?
Classical Music API has a free tier with 100 calls / month. Paid plans start at €6.25 / 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 Classical Music API GDPR-compliant?
All requests to Classical Music 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/classical-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/classical-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/classical-api/SOME_PATH");
curl_setopt($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/classical-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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