API · /cryptoetf-api

Spot Crypto ETF Tracker API

healthy 3,993 Subscribers

The US spot Bitcoin and Ethereum exchange-traded funds, tracked live and keyless from Yahoo Finance — the single biggest channel for institutional money into crypto. Since the 2024 launch of spot crypto ETFs, IBIT (BlackRock), FBTC (Fidelity), GBTC (Grayscale), ARKB, BITB and the rest trade billions of dollars a day, and their activity is a cleaner read on institutional appetite than any on-chain metric. The bitcoin endpoint lists every tracked spot Bitcoin ETF, ranked by trading volume, each with its price, daily change and volume, plus the aggregate total volume across all the funds and the day's volume leader. The ethereum endpoint does the same for the spot Ethereum ETFs (ETHA, FETH, ETHE and the rest). The etf endpoint returns one fund's detail by ticker. The summary endpoint is the institutional-appetite snapshot: total Bitcoin-ETF versus Ethereum-ETF trading volume and the ratio between them — which asset institutions are leaning into today — with the leading fund on each side. This is the spot-crypto-ETF trading cut — distinct from the coin price and market-cap feeds, the on-chain and mining feeds, and the Bitcoin valuation-model feed. It tracks ETF market activity (price, daily change, volume); it does NOT report fund flows or assets-under-management, which are not available without a paid/closed source — trading volume is the keyless institutional-interest proxy. Prices and volumes are in USD as reported by the exchange. No key, nothing stored beyond a short cache.

#bitcoin-etf #ethereum-etf #spot-etf #institutional #ibit #crypto #finance

api.oanor.com/cryptoetf-api

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Machine-readable spec so AI agents can integrate this API.

/api/cryptoetf-api/openapi.json

/api/cryptoetf-api/llms.txt

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

Spot Crypto ETF Tracker API — live data on the oanor API marketplace

API health

healthy

Uptime: 100.00%; Server probes · 24h
Avg latency: 166 ms; Server probes · 24h
Subscribers: 3,993; active
Total calls: 85; last 7 days

Full status page → · 10 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

900 calls / month
2 requests / second
Hard cap (429 above quota, no overage)
900 calls/month
2 req/sec
All endpoints
No credit card

Starter

€22.00 /month

27,000 calls / month
6 requests / second
Hard cap (429 above quota, no overage)
27k calls/month
6 req/sec
BTC + ETH ETF tables
Email support

Pro

€74.00 /month

135,000 calls / month
16 requests / second
Hard cap (429 above quota, no overage)
135k calls/month
16 req/sec
Institutional lean summary
Priority support

Scale

€209.00 /month

600,000 calls / month
40 requests / second
Hard cap (429 above quota, no overage)
600k calls/month
40 req/sec
Full ETF feed
Dedicated SLA

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PremiumApi

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api.oanor.com/institutions-api

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Live US insider and institutional ownership data from Nasdaq — no key, nothing stored. The "who owns and who is trading" view of a stock: the corporate insiders (executives and directors) buying and selling their own shares, and the institutions holding the stock, distinct from the price-quote, movers and earnings APIs in the catalogue. The insider endpoint returns recent insider transactions — the insider, their relation to the company, the date, whether it was a buy or sell, the shares, the price, the computed value and the resulting holding — plus the 3-month and 12-month open-market buy/sell summary. The institutional endpoint returns the institutional ownership picture: the percent of shares held by institutions, the total holdings value and the largest holders with their position size, recent change and market value. The positions endpoint returns the institutional position-change breakdown — how many holders increased, decreased, opened new or sold out their positions, and the shares involved. Build insider-signal trackers, smart-money dashboards, ownership-change alerts and due-diligence tools on top of real Nasdaq ownership data. Look up any US stock by its ticker symbol; values and share counts are returned as clean numbers.

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api.oanor.com/wemix-api

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api.oanor.com/monad-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Spot Crypto ETF Tracker API?

Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Spot Crypto ETF Tracker API with the x-oanor-key header. No credit card needed for the free tier.

What's the rate limit for Spot Crypto ETF Tracker 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 Spot Crypto ETF Tracker API cost?

Spot Crypto ETF Tracker API has a free tier with 100 calls / month. Paid plans start at €22.00 / 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 Spot Crypto ETF Tracker API GDPR-compliant?

All requests to Spot Crypto ETF Tracker 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.

Bitcoin 1

Ethereum 1

ETF 1

Service metadata

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Code snippets

curl https://api.oanor.com/cryptoetf-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."

const res = await fetch("https://api.oanor.com/cryptoetf-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();

$ch = curl_init("https://api.oanor.com/cryptoetf-api/SOME_PATH");
curl_setopt($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/cryptoetf-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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