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API · /kucoin-api

KuCoin API

healthy 4,654 Subscribers

Live spot-market data from KuCoin, one of the largest crypto exchanges and the best-known venue for altcoins, via its public API. KuCoin lists over a thousand trading pairs, so its signature is breadth. Get a pair's full 24-hour snapshot: last price, best bid and ask, high, low, the 24-hour change in price and percent, the base and quote volume, the 24-hour average price and the taker and maker fee. Pull the entire board — every KuCoin pair in one call with its last price and 24-hour change. Get the top of the order book with the spread. Read OHLCV candles at any interval. Live, no key, nothing stored. Distinct from Coinbase, Bitstamp, OKX, Gate.io, Bitfinex, Gemini, Kraken and Bybit venue APIs and from aggregated feeds — this is KuCoin's own ticker, full pair board, order book and candles. Perfect for trading, charting and market-data apps.

#kucoin #crypto #exchange #spot #altcoins #ticker #trading #ohlc
api.oanor.com/kucoin-api
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Machine-readable spec so AI agents can integrate this API.

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

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

KuCoin API — live data on the oanor API marketplace

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
379 ms
Server probes · 24h
Subscribers
4,654
active
Total calls
80
last 7 days
status Full status page → · 16 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 7,000 calls / month
  • 3 requests / second
  • Hard cap (429 above quota, no overage)
  • 7k calls/month
  • 3 req/sec
  • Ticker + prices + orderbook + klines
  • No credit card
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Starter

€11.00 /month

  • 146,000 calls / month
  • 8 requests / second
  • Hard cap (429 above quota, no overage)
  • 146k calls/month
  • 8 req/sec
  • Email support
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Pro

€35.00 /month

  • 865,000 calls / month
  • 20 requests / second
  • Hard cap (429 above quota, no overage)
  • 865k calls/month
  • 20 req/sec
  • Priority support
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Business

€80.00 /month

  • 4,750,000 calls / month
  • 45 requests / second
  • Hard cap (429 above quota, no overage)
  • 4.75M calls/month
  • 45 req/sec
  • Dedicated SLA
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Built by

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PremiumApi

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KCC Chain API

Live on-chain data for KuCoin Community Chain (KCC) — an EVM Layer 1 backed by the KuCoin community — via its public Blockscout explorer (no wallet, no key). The stats endpoint returns chain-wide totals (blocks, transactions, addresses, average block time, gas used); gas gives the current gas-price oracle (slow/average/fast). Blocks lists the latest blocks, and a single block resolves by height or by hash with its transaction count, gas, validator and timestamp. The address endpoint returns any account's KCS balance, nonce, contract flag and token holdings; transaction resolves a tx by hash with its from/to, value in KCS, fee, status and block. The token endpoint returns an ERC-20 token's metadata (name, symbol, decimals, total supply, holders) by contract address, and search runs a universal lookup across addresses, tokens, blocks and transactions. Gas, balances, values and fees are denominated in KCS, the native coin. Real on-chain data straight from the explorer, refreshed every call — no key. 9 endpoints. For multi-chain coverage combine with the other oanor chain APIs (Ethereum, Base, Arbitrum and more).

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Live EVM on-chain data for WEMIX (chain id 1111) — the gaming-focused public Layer-1 built by Wemade, whose native token is WEMIX — served directly from public EVM JSON-RPC nodes with multi-node failover. The status endpoint returns the chain and network id, the latest block height and the node client version. The block endpoint returns a block by number (or the latest) with its hash, parent hash, timestamp, transaction count, gas used and gas limit, miner and size. The gas endpoint returns the current gas price in both wei and gwei. The balance endpoint returns the WEMIX balance and outgoing transaction count for any address, converted from base wei (18 decimals) into whole WEMIX with exact big-integer scaling. Every figure is read live from the chain over JSON-RPC — nothing bundled or modelled — behind a short server-side cache with keep-warm so the feed stays fast and fresh. Ideal for explorers, wallet and dashboard tooling, gas trackers, address monitors and game-economy analytics across the WEMIX ecosystem. Live keyless upstream. 5 endpoints.

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Monad API

Live EVM on-chain data for Monad (chain id 143) — the high-performance, parallel-execution Layer-1 designed for thousands of transactions per second, whose native token is MON — served directly from public EVM JSON-RPC nodes with multi-node failover. The status endpoint returns the chain and network id, the latest block height and the node client version. The block endpoint returns a block by number (or the latest) with its hash, parent hash, timestamp, transaction count, gas used and gas limit, miner and size. The gas endpoint returns the current gas price in both wei and gwei. The balance endpoint returns the MON balance and outgoing transaction count for any address, converted from base wei (18 decimals) into whole MON with exact big-integer scaling. Every figure is read live from the chain over JSON-RPC — nothing bundled or modelled — behind a short server-side cache with keep-warm so the feed stays fast and fresh. Ideal for explorers, wallet and dashboard tooling, gas trackers, address monitors and analytics apps across the Monad ecosystem. Live keyless upstream. 5 endpoints.

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Superposition API

Live EVM on-chain data for Superposition (chain id 55244) — an Arbitrum-Orbit DeFi Layer-3 with ETH gas and on-chain yield-bearing Super Assets — served directly from the public Superposition JSON-RPC with server-side resilience. The status endpoint returns the chain and network id, the latest block height and the node client version. The block endpoint returns a block by number (or the latest) with its hash, parent hash, timestamp, transaction count, gas used and gas limit, miner and size. The gas endpoint returns the current gas price in both wei and gwei. The balance endpoint returns the ETH balance and outgoing transaction count for any address, converted from base wei (18 decimals) into whole ETH with exact big-integer scaling. Every figure is read live from the chain over JSON-RPC — nothing bundled or modelled — behind a short server-side cache with keep-warm so the feed stays fast and fresh. Ideal for explorers, wallet and dashboard tooling, gas trackers, address monitors and DeFi analytics across the Superposition and Arbitrum-Orbit ecosystem. Live keyless upstream. 5 endpoints.

api.oanor.com/superposition-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for KuCoin API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call KuCoin API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for KuCoin 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 KuCoin API cost?
KuCoin API has a free tier with 100 calls / month. Paid plans start at €11.00 / 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 KuCoin API GDPR-compliant?
All requests to KuCoin 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/kucoin-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/kucoin-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/kucoin-api/SOME_PATH");
curl_setopt($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/kucoin-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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