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Quandl

Quandl — keyless JSON API

📚 Open DataHEALTHYchecked 6 min ago
AUTH NONECORS ✗AGENT ✓HTTPS ✓COMMERCIAL ?

Quandl. Stock Market Data

93HOW IT'S SCORED ⓘ
Docs ↗
Status badge · for your READMEshipapis health badge: 93 · healthy
Uptime history
100%90 days
100%30 days
420P50 · ms
3525P95 · ms
operationalpartialdownno data
Response time · last 48 checks
Fastest 105 ms, slowest 1124 ms, most recent 386 ms.
Live response samplecaptured by our last successful check
GET https://www.quandl.com/.well-known/openapi.json

{
  "bearer_methods_supported": [
    "header"
  ],
  "resource": "https://data.nasdaq.com/.well-known/openapi.json",
  "authorization_servers": [
    "https://signin.nasdaq.com/oauth2/austt9dkdogT6EFRB417/"
  ],
  "resource_documentation": "https://data.nasdaq.com/"
}
Call itcurl · fetch · python
curl "https://www.quandl.com/.well-known/openapi.json"
const res = await fetch("https://www.quandl.com/.well-known/openapi.json");
const data = await res.json();
console.log(data);
import requests

res = requests.get("https://www.quandl.com/.well-known/openapi.json")
print(res.json())

BROWSER CALLS BLOCKED (NO CORS/HTTPS) — USE THE CURL SNIPPET

Endpoints · 5HealthyFULL DOCS ↗
Monitored path responding — GET /.well-known/openapi.json420 mschecked 6 min ago
GET/.well-known/openapi.jsonPROBED

Quandl — keyless JSON API

GET/.well-known

Well Known — documented GET route.

GET/.well-known/1

.Well Known details by ID (example: 1).

GET/.well-known?limit=10

Well Known — documented GET route.

GET/.well-known/search?q=test

Search by query parameters.

Machine-readable spec

We probe a documented GET and expect 2xx JSON — full uptime and health score. Export includes every documented route below.

Response-shape history

Stable. No schema drift observed since monitoring began — the response shape has not changed under our checks.

Quandl: common questions

Is Quandl free to use?

Yes — Quandl is a free open data API. Free tier: Free — limits not published. Whether the free tier allows commercial use is unclear — check the provider docs.

Does Quandl need an API key?

No — Quandl needs no API key or signup. You can call it straight away; rate limits still apply (Unpublished).

Can I call Quandl from the browser?

Not directly — Quandl doesn't send browser-friendly CORS headers, so call it from a server or proxy instead. Copy the curl or Python snippet on this page to get started.

Is Quandl up right now?

As of our last scheduled check, Quandl is healthy with 100% uptime over 90 days and a 420 ms median response. We re-probe it every sweep — the status badge and uptime chart above always show the latest.