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API · /proglangs-api

Programming Languages API

healthy 4,089 Subscribers

A reference for 800+ programming, markup and data languages, built from the GitHub Linguist dataset. Detect which language a file extension belongs to (e.g. .rs → Rust), look up a language by name or alias, get its type, brand color, file extensions and aliases, and search or list by type. Ideal for code editors, syntax tooling, repo analyzers and language badges. (Programming languages — not spoken languages.)

#programming-languages #code #file-extensions #devtools #linguist
api.oanor.com/proglangs-api
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Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
84 ms
Server probes · 24h
Subscribers
4,089
active
Total calls
425
last 7 days
status Full status page → · 30 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 3,000 calls / month
  • 3 requests / second
  • Hard cap (429 above quota, no overage)
  • 3,000 calls/month
  • 3 req/sec
  • Lookup + extension detect
  • No credit card
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Starter

€4.00 /month

  • 60,000 calls / month
  • 10 requests / second
  • Hard cap (429 above quota, no overage)
  • 60k calls/month
  • 10 req/sec
  • Search + list
  • Email support
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Pro

€12.00 /month

  • 350,000 calls / month
  • 25 requests / second
  • Hard cap (429 above quota, no overage)
  • 350k calls/month
  • 25 req/sec
  • Editor / tooling integration
  • Priority support
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Mega

€33.00 /month

  • 1,500,000 calls / month
  • 50 requests / second
  • Hard cap (429 above quota, no overage)
  • 1.5M calls/month
  • 50 req/sec
  • Embed in product
  • Dedicated SLA
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Built by

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api.oanor.com/netports-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Programming Languages API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Programming Languages API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Programming Languages 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 Programming Languages API cost?
Programming Languages API has a free tier with 100 calls / month. Paid plans start at €4.00 / 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 Programming Languages API GDPR-compliant?
All requests to Programming Languages 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/proglangs-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/proglangs-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/proglangs-api/SOME_PATH");
curl_setopt($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/proglangs-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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