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API · /chaintvl-api

Chain TVL API

healthy 3,418 Subscribers

Live DeFi total-value-locked per blockchain as an API, streamed from the DefiLlama chains feed. For every chain DefiLlama tracks: the dollar value of assets locked in its DeFi protocols, its native token symbol, and its share of all DeFi value (dominance), plus 7-day and 30-day change for a chain. Rank the blockchains by how much capital they hold, drill into one chain, read the total DeFi market and its leader, or search. The blockchain-level view of where DeFi capital lives. Live, no key. Distinct from protocol-level TVL, fees, DEX-volume and yield APIs — here the entity is the chain, not the protocol.

#crypto #tvl #chains #defillama #blockchain #defi #dominance
api.oanor.com/chaintvl-api
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Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
144 ms
Server probes · 24h
Subscribers
3,418
active
Total calls
30
last 7 days
status Full status page → · 10 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 240 calls / month
  • 3 requests / second
  • Hard cap (429 above quota, no overage)
  • 240 calls/month
  • 3 req/sec
  • Top, chain, total, search
  • No credit card
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Analyst

€13.00 /month

  • 8,400 calls / month
  • 10 requests / second
  • Hard cap (429 above quota, no overage)
  • 8.4k calls/month
  • 10 req/sec
  • Email support
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Pro

€35.00 /month

  • 43,000 calls / month
  • 25 requests / second
  • Hard cap (429 above quota, no overage)
  • 43k calls/month
  • 25 req/sec
  • Priority support
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Fund

€82.00 /month

  • 215,000 calls / month
  • 45 requests / second
  • Hard cap (429 above quota, no overage)
  • 215k calls/month
  • 45 req/sec
  • Dedicated SLA
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Related APIs

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EXMO Exchange API

Live spot market data from EXMO, a European/CIS 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/average and base/quote volume; rank every market for a quote currency by 24h turnover; list the tradable pairs with their base, quote and limits; or pull live order-book depth with the running spread. Markets are addressed BASE_QUOTE (BTC_UAH). This is the EXMO venue specifically — a distinct multi-fiat price feed that quotes against the Ukrainian hryvnia (UAH), Polish złoty (PLN), euro, Brazilian real and US dollar as well as USDT, ideal for UAH/PLN price discovery and Eastern-European-market arbitrage, separate from the USD/USDT-only exchange APIs in the catalogue.

api.oanor.com/exmo-api

Quidax Exchange API

Live spot market data from Quidax, a leading Nigerian crypto exchange, served straight from its public ticker feed — no key on the data, nothing cached, nothing stored. Look up any market for its last price, best bid/ask and spread, 24h open/high/low, 24h change and base/quote volume; rank every market for a quote currency (Nigerian naira NGN, USDT or USD) by 24h turnover; or list the tradable pairs with their base and quote. Markets are addressed as BTCNGN or BTC_NGN. This is the Quidax venue specifically — a distinct Nigerian-naira price feed for a high-adoption African market, ideal for NGN price discovery and Africa-market arbitrage, separate from the USD/USDT-quoted exchange APIs in the catalogue. Ticker-only: Quidax exposes no public order book, so the best bid/ask travel inside the ticker.

api.oanor.com/quidax-api

MAX Exchange API

Live spot market data from MAX (MaiCoin), Taiwan's leading 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 open/high/low, 24h change and base/quote volume; rank every market for a quote currency (New Taiwan dollar TWD, USDT or BTC) by 24h turnover; list the tradable pairs with their base, quote and precision; or pull live order-book depth with the running spread. Markets are addressed as BTCTWD or BTC_TWD. This is the MAX venue specifically — a distinct New-Taiwan-dollar price feed, ideal for TWD price discovery and East-Asia-market arbitrage, separate from the USD/USDT-quoted exchange APIs in the catalogue.

api.oanor.com/max-api

CoinMate Exchange API

Live spot market data from CoinMate, a long-running European (Czech) 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 open/high/low, 24h change and base/quote volume; rank every market for a quote currency (Czech koruna CZK, euro EUR, or BTC) 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 BASE_QUOTE (BTC_CZK). This is the CoinMate venue specifically — a distinct Czech-koruna and euro price feed, ideal for CZK/EUR price discovery and central-European-market arbitrage, separate from the USD/USDT-quoted exchange APIs in the catalogue.

api.oanor.com/coinmate-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Chain TVL API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Chain TVL API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Chain TVL 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 Chain TVL API cost?
Chain TVL API has a free tier with 100 calls / month. Paid plans start at €13.00 / 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 Chain TVL API GDPR-compliant?
All requests to Chain TVL 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/chaintvl-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/chaintvl-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/chaintvl-api/SOME_PATH");
curl_setopt($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/chaintvl-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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