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API · /chainlink-api

Chainlink Price Feeds API

healthy 3,650 Subscribers

The on-chain prices that DeFi actually runs on, read live and keyless straight from Chainlink's price-feed contracts on Ethereum. Chainlink is the dominant oracle: a decentralised network writes each price on-chain and refreshes it on a heartbeat or when it moves past a deviation threshold, and thousands of lending, perpetual and stablecoin protocols read that exact number to value collateral and trigger liquidations. What matters is not just the price but whether the feed is fresh — a stale Chainlink feed is how DeFi protocols break — and that on-chain freshness is exactly what this exposes. The feeds endpoint lists every tracked Chainlink feed (crypto, stablecoins and FX) with its current on-chain answer, how many seconds ago it last updated and whether it is fresh. The feed endpoint returns one pair's full detail by name, including the round id, the update timestamp and the feed contract address. The health endpoint is the oracle-monitoring view: how many feeds are fresh versus stale, the stalest feed and the average update age — the on-chain reliability picture that a plain price API can't give you. Each price is read from the feed's latestRoundData and scaled by the feed's own on-chain decimals (USD feeds use 8); the update time is the contract's updatedAt. This is the Chainlink on-chain-oracle cut — distinct from the off-chain oracle-price APIs (which serve a price but not the on-chain feed's round and freshness) and from the exchange price feeds. Prices are in the feed's quote unit (USD here); times are UTC. No key, nothing stored beyond a short cache.

#chainlink #oracle #price-feed #defi #on-chain #ethereum #crypto
api.oanor.com/chainlink-api
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Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
146 ms
Server probes · 24h
Subscribers
3,650
active
Total calls
12
last 7 days
status Full status page → · 16 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 1,200 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,200 calls/month
  • 2 req/sec
  • All endpoints
  • No credit card
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Starter

€16.00 /month

  • 24,500 calls / month
  • 6 requests / second
  • Hard cap (429 above quota, no overage)
  • 24.5k calls/month
  • 6 req/sec
  • All feeds + freshness
  • Email support
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Pro

€63.00 /month

  • 152,000 calls / month
  • 16 requests / second
  • Hard cap (429 above quota, no overage)
  • 152k calls/month
  • 16 req/sec
  • Oracle health monitoring
  • Priority support
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Scale

€183.00 /month

  • 500,000 calls / month
  • 40 requests / second
  • Hard cap (429 above quota, no overage)
  • 500k calls/month
  • 40 req/sec
  • Full on-chain feed
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

RedStone Oracle Prices API

Live oracle price feeds for over a thousand assets across every asset class in a single source — cryptocurrencies, US equities and ETFs, precious metals and commodities, fiat currencies and liquid-staking and real-world-asset tokens — served from the public RedStone oracle, no key, nothing stored. RedStone is the decentralized oracle that DeFi protocols read on-chain for their prices, so this is the cross-asset reference-price layer: the same feed gives you Bitcoin, Apple, gold, the euro and wstETH side by side, each stamped with the time the oracle signed it. The price endpoint returns one asset's latest oracle value. The prices endpoint returns many assets in one call — mix crypto, stocks, metals, FX and staking tokens freely. The symbols endpoint lists and searches every supported asset, from majors to obscure liquid-staking and tokenized real-world assets you will not find in a normal price feed. This is the multi-asset oracle-price cut — one feed for every class — distinct from the single-asset-class price, converter and precious-metals APIs in the catalogue.

api.oanor.com/redstone-api

Pyth Network API

Live cross-asset prices from Pyth, the largest decentralised first-party oracle, which aggregates prices contributed by exchanges, market makers and trading firms and serves them across 90+ blockchains. Pyth covers far more than crypto: around 3,000 feeds spanning crypto, US and global equities, FX pairs, commodities and precious metals. The feeds endpoint searches the feed registry by symbol or asset type; the price endpoint returns one feed's latest aggregate price with its confidence interval, exponent, EMA price and publish time; the prices endpoint returns many feeds at once. Each price carries a confidence band — Pyth's signature measure of how tightly publishers agree. Read live from Pyth, nothing stored. This is Pyth's own multi-asset first-party oracle layer — distinct from single-DEX oracles and single-asset-class price feeds.

api.oanor.com/pyth-api

GMX API

Live oracle prices from GMX, the leading decentralised perpetual-swap exchange on Arbitrum and Avalanche. Unlike order-book DEXs, GMX executes trades against its GLP/GM liquidity pools at prices set by a keeper-signed oracle that quotes a MIN and a MAX price per token — the execution band traders open and close positions against. The prices endpoint returns every supported token's min/max/mid oracle price and the execution spread; the price endpoint returns a single token by symbol; the tokens endpoint returns the supported-token registry (contract address, decimals, synthetic flag); the spread endpoint ranks tokens by their oracle execution spread (the on-chain cost band of trading that token on GMX). Every endpoint accepts a chain parameter (arbitrum default, or avalanche). Read live from GMX's public oracle, nothing stored. This is GMX's own pool-DEX oracle min/max-price and execution-spread layer — distinct from centralised-exchange tickers, aggregate price feeds and order-book DEX feeds such as dYdX and Hyperliquid.

api.oanor.com/gmx-api

Honeypot Token Safety API

Live EVM token-safety checks — does this token let you sell, and what will it cost you? A "honeypot" is a token you can buy but cannot sell: the contract blocks the sell, traps your money or charges a punishing tax. This API detects it the only reliable way — by actually simulating a buy and a sell of the token against its real liquidity pool on-chain, right now (powered by honeypot.is), and reporting whether the sell went through, the live buy/sell/transfer tax, the gas cost and a plain risk summary. Beyond the honeypot verdict it returns the token's DEX trading pairs with their on-chain reserves and USD liquidity, the largest holders with the top-10 supply concentration (a top-heavy token can be dumped on you), and whether the contract source is verified/open and makes proxy calls. Covers Ethereum, BNB Chain, Base and other EVM chains. This is the EVM token-safety cut via live buy/sell simulation — distinct from the Solana rug-risk feed, which inspects SPL mint authorities on a different chain with a different method. A safety signal, not financial advice — always verify before trading.

api.oanor.com/honeypot-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Chainlink Price Feeds API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Chainlink Price Feeds API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Chainlink Price Feeds 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 Chainlink Price Feeds API cost?
Chainlink Price Feeds API has a free tier with 100 calls / month. Paid plans start at €16.00 / 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 Chainlink Price Feeds API GDPR-compliant?
All requests to Chainlink Price Feeds 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

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curl https://api.oanor.com/chainlink-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/chainlink-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/chainlink-api/SOME_PATH");
curl_setopt($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/chainlink-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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