Whole month: priced, upcoming, filed
API · /ipo-api
IPO Calendar API
healthy
4,650 Subscribers
The live pipeline of US stock-market initial public offerings, served from Nasdaq's public IPO calendar — no key, nothing cached. This is the deal flow of companies going public, the data IPO investors and traders watch. The priced endpoint returns the IPOs that have just priced and begun trading, each with the ticker, company, exchange, offer price, shares offered, pricing date and total deal size. The upcoming endpoint returns the IPOs expected to price soon, with their price range and expected date — the near-term pipeline. The filed endpoint returns companies that have newly filed to go public, the earliest signal of a coming listing. The calendar endpoint returns the whole month in one call — priced, upcoming and filed — with counts. Any month back through the archive can be requested, and with no month it returns the current one. Everything is live from Nasdaq, nothing stored. This is the IPO-pipeline layer for any trading, investing, screener or finance app. Distinct from stock-quote and earnings APIs — this is the calendar of companies coming to market: priced, upcoming and freshly filed offerings. 4 endpoints, no key on our side.
api.oanor.com/ipo-api
API health
healthy- Uptime
- 100.00%
- Server probes · 24h
- Avg latency
- 127 ms
- Server probes · 24h
- Subscribers
- 4,650
- active
- Total calls
- 95
- last 7 days
Pricing
Pick a tier — billed monthly, cancel anytime.
Free
Free
- 3,200 calls / month
- 3 requests / second
- Hard cap (429 above quota, no overage)
- 3,200 calls/month
- 3 req/sec
- Priced, upcoming, filed, calendar
- No credit card
Starter
€9.00 /month
- 48,000 calls / month
- 8 requests / second
- Hard cap (429 above quota, no overage)
- 48,000 calls/month
- 8 req/sec
- Any past month + deal sizes
- Email support
Pro
€23.00 /month
- 260,000 calls / month
- 20 requests / second
- Hard cap (429 above quota, no overage)
- 260,000 calls/month
- 20 req/sec
- Trading & screener pipelines
- Priority support
Mega
€55.00 /month
- 1,250,000 calls / month
- 50 requests / second
- Hard cap (429 above quota, no overage)
- 1,250,000 calls/month
- 50 req/sec
- Platform scale
- Dedicated SLA
Built by
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api.oanor.com/mexico-stock-api
Frequently asked questions
Quick answers about pricing, quotas, and integration.
How do I get an API key for IPO Calendar API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call IPO Calendar API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for IPO Calendar 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 IPO Calendar API cost?
IPO Calendar API has a free tier with 100 calls / month. Paid plans start at €9.00 / 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 IPO Calendar API GDPR-compliant?
All requests to IPO Calendar 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/ipo-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."const res = await fetch("https://api.oanor.com/ipo-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();$ch = curl_init("https://api.oanor.com/ipo-api/SOME_PATH");
curl_setopt($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/ipo-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())Ratings
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