API · /stackexchange-api

Stack Exchange API

healthy 4,562 Subscribers

Search Stack Overflow and the Stack Exchange network — questions by relevance with scores, answer counts and tags, full question details, and user profiles with reputation, badges and location. Ideal for developer tools, tech-trend monitoring, Q&A aggregation and reputation lookups.

api.oanor.com/stackexchange-api
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Machine-readable spec so AI agents can integrate this API.

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

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

Stack Exchange API — live data on the oanor API marketplace

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
707 ms
Server probes · 24h
Subscribers
4,562
active
Total calls
140
last 7 days
status Full status page → · 28 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 4,000 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 4,000 requests/month at 2 rps
  • Question search + question details
  • No credit card
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Basic

€8.00 /month

  • 60,000 calls / month
  • 8 requests / second
  • Hard cap (429 above quota, no overage)
  • 60,000 requests/month at 8 rps
  • Adds user profiles: reputation, badges, location
  • Commercial use allowed
  • Email support
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Pro

€24.00 /month

  • 300,000 calls / month
  • 20 requests / second
  • Hard cap (429 above quota, no overage)
  • 300,000 requests/month at 20 rps
  • Full Stack Exchange network search across all sites
  • Pooled-quota access beyond the 10k/day upstream cap
  • Priority email support
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Mega

€99.00 /month

  • 1,500,000 calls / month
  • 50 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,500,000 requests/month at 50 rps
  • All endpoints + bulk question/user lookups
  • 99.9% uptime SLA
  • Priority support
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Built by

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Trivia questions via the open Open Trivia Database (OpenTDB) — no key. The questions endpoint returns multiple-choice and true/false questions filtered by category, difficulty (easy, medium, hard) and type, each with the question text, the correct answer and the incorrect options; answers are decoded server-side to clean text. The categories endpoint lists all 24 trivia categories with their ids, and count returns a category's question-count breakdown by difficulty. A random endpoint pulls a single question with the same filters. Real trivia data straight from OpenTDB, fetched fresh — no key. 5 endpoints. Ideal for quiz and trivia games, pub-quiz generators, icebreakers, study apps and chatbot mini-games.

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Live creator and sketch data from OpenProcessing, the community for Processing and p5.js creative-coding sketches, served from its public API. The user endpoint returns a creator's profile — username, name, bio, location, website, join date and total sketch count. The sketches endpoint lists a creator's published sketches with title, license, engine mode and dates. The sketch endpoint returns a single sketch's detail — title, description, tags, license, libraries used, the fork parent it was remixed from, and the author. The social endpoint returns a creator's followers or the accounts they follow. This is a creative-coding community stats API — creator profiles, sketch catalogues and the follow graph — distinct from the code-hosting, package-registry and other social-platform APIs in the catalogue. A user is a numeric OpenProcessing userID and a sketch is a numeric visualID, both visible in OpenProcessing URLs. Live, no key on the upstream, nothing stored.

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Modrinth Minecraft Mods API

Live mod-platform stats from Modrinth, the open Minecraft content platform — no key, nothing stored. The adoption-and-community view of the Minecraft modding ecosystem: how much each mod, modpack, shader or resource pack is downloaded and followed, and which projects are most popular, distinct from the other developer-ecosystem and gaming APIs in the catalogue. The project endpoint returns a single project in full — total downloads, followers, type, categories, supported game versions and loaders, client/server sides and license. The search endpoint searches projects, filterable by type (mod, modpack, shader, resource pack, data pack) and sortable by downloads or follows, each with its download and follower count. The versions endpoint returns a project's recent releases with per-version downloads, supported game versions and loaders. Build mod dashboards, popularity trackers, "is this mod maintained" widgets and modpack browsers on top of real Modrinth data. Look up a project by its slug (sodium, iris, fabric-api); downloads are the headline popularity metric.

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Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Stack Exchange API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Stack Exchange API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Stack Exchange 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 Stack Exchange API cost?
Stack Exchange API has a free tier with 100 calls / month. Paid plans start at €8.00 / 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 Stack Exchange API GDPR-compliant?
All requests to Stack Exchange 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/stackexchange-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/stackexchange-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/stackexchange-api/SOME_PATH");
curl_setopt($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/stackexchange-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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