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API · /proglang-api

Programming Languages API

healthy 4,983 Subscribers

The language definitions GitHub uses to recognise code (the open-source Linguist data) as an API — a clean reference for syntax highlighting, file-type detection, repository dashboards and developer tooling. For each of 800+ languages the API returns its type (programming, markup, data or prose), its brand colour (the hex GitHub paints it), the file extensions associated with it, common aliases, the GitHub language id and the editor (ace) mode. Look a language up by name or alias (golang resolves to Go), reverse-look-up which language(s) own a file extension (.py → Python; .h → C, C++, Objective-C), list the languages of a type, search, or list them all. Distinct from languages-api (ISO 639 human languages) — this is the programming-language reference. Served from memory — always fast.

#programming-languages #linguist #github #developer-tools #syntax #reference
api.oanor.com/proglang-api
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Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
88 ms
Server probes · 24h
Subscribers
4,983
active
Total calls
48
last 7 days
status Full status page → · 18 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 25,000 calls / month
  • 3 requests / second
  • Hard cap (429 above quota, no overage)
  • 25k calls/month
  • 3 req/sec
  • All endpoints
  • No credit card
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Starter

€5.00 /month

  • 250,000 calls / month
  • 10 requests / second
  • Hard cap (429 above quota, no overage)
  • 250k calls/month
  • 10 req/sec
  • Email support
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Pro

€13.00 /month

  • 1,200,000 calls / month
  • 25 requests / second
  • Hard cap (429 above quota, no overage)
  • 1.2M calls/month
  • 25 req/sec
  • Priority support
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Mega

€31.00 /month

  • 5,500,000 calls / month
  • 60 requests / second
  • Hard cap (429 above quota, no overage)
  • 5.5M calls/month
  • 60 req/sec
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

Programming Languages API

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.)

api.oanor.com/proglangs-api

Crypto Coin Profile API

Live project profile, developer activity and official links for any cryptocurrency — what a coin is, not what it costs — served from the public CoinGecko feed with no key and nothing cached. The profile endpoint returns the project's description, market-cap rank, categories (Layer 1, DeFi, Meme and more), genesis date, hashing algorithm, country of origin, the community sentiment split, and the all-time high and low with their dates — Ethereum is a rank-2 Smart Contract Platform that launched in 2015 with an all-time high near $4,946. The developer endpoint returns the GitHub development activity investors use to gauge a project's health: stars, forks and watchers, the count of total and closed issues, merged pull requests and recent commits — Bitcoin's repositories carry over seventy thousand stars and thousands of merged pull requests. The links endpoint returns every official link: homepage, whitepaper, block explorers, GitHub repositories, the subreddit, Twitter handle, Telegram and forums. This is the project-research and due-diligence layer for any crypto research, screener, wallet or portfolio app. Live from CoinGecko, nothing stored. Distinct from price, market-cap and OHLC APIs — this is the project profile, developer activity and links. 4 endpoints.

api.oanor.com/coinprofile-api

GitHub API

Read GitHub in real time — no token, no OAuth. Look up any repository by owner/name for its full detail (stars, forks, watchers, open issues, language, license, topics, default branch, timestamps) and pull its commits, contributors, language breakdown, releases, branches, tags, open/closed issues and decoded README. Look up any user or organization profile, list a user's repositories, and run GitHub search across repositories, users and issues/PRs with sort and order. Pass repo as "owner/name" (or a github.com URL). Every call is live (no cache) and returns the upstream GitHub REST shape, paginated with page + per_page (max 100). 16 endpoints. The unauthenticated GitHub limit is 60 requests/hour per IP — this service routes every call through a rotating residential proxy, so each request gets a fresh budget and you are not rate-limited. Built for dev dashboards, OSS analytics, dependency and supply-chain tooling, and repo monitoring. No upstream token, no cache.

api.oanor.com/github-api

MIME Types API

The canonical MIME / media-type database (the jshttp mime-db used by Express and most of the Node ecosystem: IANA + Apache + nginx), served from memory — no key. Resolve a media type to its file extensions, charset and compressibility; reverse-lookup the media type(s) for a file extension (e.g. png → image/png); and search or list types by source. 2,600+ media types, 1,000+ with file extensions. Lean, predictable JSON. Ideal for upload validation, Content-Type resolution, file-type detection, download handlers and developer tooling.

api.oanor.com/mimetypes-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 €5.00 / 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/proglang-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/proglang-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/proglang-api/SOME_PATH");
curl_setopt($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/proglang-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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