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API · /cryptobasis-api

Crypto Basis API

healthy 4,769 Subscribers

Live crypto spot-versus-perpetual basis and premium as an API, served from the Bybit v5 feed. The basis is the gap between a coin's perpetual-futures price and its spot price: when the perp trades above spot the market is in contango (leveraged longs are paying up), when below it is in backwardation. For any coin this returns the spot price, the perp last, mark and index price, the basis in absolute and percentage terms, the mark-to-index premium, the market structure, and the funding rate — per-8-hour and annualised — that arbitrages the basis away. Get a coin's basis, or scan the majors ranked by basis. The cash-and-carry and funding-arbitrage signal layer for trading and dashboard apps. Live, no key, no cache. Distinct from funding-rate, open-interest and price APIs — this is the spot-perp basis.

#crypto #basis #perpetuals #contango #funding #bybit #derivatives #trading
api.oanor.com/cryptobasis-api
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Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
303 ms
Server probes · 24h
Subscribers
4,769
active
Total calls
24
last 7 days
status Full status page → · 12 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 8,000 calls / month
  • 5 requests / second
  • Hard cap (429 above quota, no overage)
  • 8k calls/month
  • 5 req/sec
  • All endpoints
  • No credit card
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Starter

€14.00 /month

  • 105,000 calls / month
  • 15 requests / second
  • Hard cap (429 above quota, no overage)
  • 105k calls/month
  • 15 req/sec
  • Email support
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Pro

€35.00 /month

  • 520,000 calls / month
  • 40 requests / second
  • Hard cap (429 above quota, no overage)
  • 520k calls/month
  • 40 req/sec
  • Priority support
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Desk

€83.00 /month

  • 2,700,000 calls / month
  • 100 requests / second
  • Hard cap (429 above quota, no overage)
  • 2.7M calls/month
  • 100 req/sec
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

Bithumb Exchange API

Live spot market data from Bithumb, South Korea's major crypto exchange, served straight from its public order books — no key on the data, nothing cached, nothing stored. Look up any market for its last price, 24h open/high/low, 24h change and base/quote volume; rank every market for a payment currency (Korean won KRW, or BTC) by 24h turnover; list the tradable coins; or pull live order-book depth with the running spread. Markets are addressed COIN_PAYMENT (BTC_KRW, ETH_BTC). This is the Bithumb venue specifically — a distinct Korean-won price feed, ideal for tracking the "kimchi premium" and KRW price discovery, separate from the USD/USDT-quoted exchange APIs in the catalogue.

api.oanor.com/bithumb-api

Biconomy Exchange API

Live spot market data from Biconomy, a global crypto exchange, served straight from its public order books — no key on the data, nothing cached, nothing stored. Look up any market for its last price, 24h high/low, 24h change and base/quote volume; rank every spot market for a quote currency (USDT, BTC, ETH…) by 24h turnover; list the tradable pairs with their base, quote and precision; or pull live order-book depth with the real best bid/ask and running spread. Markets are addressed as BTC_USDT, with base and quote either side of the underscore. This is the Biconomy venue specifically — a distinct global exchange feed, separate from the other exchange APIs in the catalogue, so cross-venue arbitrage and price-discovery workflows can read each book on its own terms.

api.oanor.com/biconomy-api

Deepcoin Exchange API

Live spot market data from Deepcoin, a global crypto exchange, served straight from its public order books — no key on the data, nothing cached, nothing stored. Look up any market for its last price, best bid/ask and spread, 24h high/low, 24h change and base/quote volume; rank every spot market for a quote currency (USDT, BTC, ETH…) by 24h quote volume; list the tradable instruments with their base, quote and tick/lot size; or pull live order-book depth with the running spread. Markets are addressed OKX-style as BTC-USDT, with base and quote either side of the hyphen. This is the Deepcoin venue specifically — a distinct global exchange feed, separate from the other exchange APIs in the catalogue, so cross-venue arbitrage and price-discovery workflows can read each book on its own terms.

api.oanor.com/deepcoin-api

CoinW Exchange API

Live spot market data from CoinW, a global crypto exchange, served straight from its public order books — no key on the data, nothing cached, nothing stored. Look up any market for its last price, best bid/ask and spread, 24h high/low, 24h change and turnover; rank every spot market for a quote currency (USDT, BTC, ETH…) by 24h turnover; list the tradable pairs with their base and quote; or pull live order-book depth with the running spread. Markets are addressed as BTC_USDT, with base and quote either side of the underscore. This is the CoinW venue specifically — a distinct global exchange feed, separate from the other exchange APIs in the catalogue, so cross-venue arbitrage and price-discovery workflows can read each book on its own terms.

api.oanor.com/coinw-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Crypto Basis API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Crypto Basis API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Crypto Basis 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 Crypto Basis API cost?
Crypto Basis API has a free tier with 100 calls / month. Paid plans start at €14.00 / 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 Crypto Basis API GDPR-compliant?
All requests to Crypto Basis 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/cryptobasis-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/cryptobasis-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/cryptobasis-api/SOME_PATH");
curl_setopt($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/cryptobasis-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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