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API · /world-api

World Chain API

healthy 3,632 Subscribers

Live World Chain on-chain data via Blockscout. World Chain is Worldcoin's Ethereum L2 built on the OP Stack; gas and balances are in ETH. Network stats, gas prices, latest blocks, a block by height or hash, address detail with ETH balance, a transaction by hash, ERC-20 token metadata and a universal search across addresses, tokens, blocks and transactions. Real data, no key.

#world-chain #worldcoin #ethereum #l2 #op-stack #blockchain #evm #web3
api.oanor.com/world-api
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Machine-readable spec so AI agents can integrate this API.

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

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

World Chain API — live data on the oanor API marketplace

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
272 ms
Server probes · 24h
Subscribers
3,632
active
Total calls
171
last 7 days
status Full status page → · 27 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

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

€16.50 /month

  • 90,000 calls / month
  • 10 requests / second
  • Hard cap (429 above quota, no overage)
  • 90k calls/month
  • 10 req/sec
  • Email support
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Pro

€51.00 /month

  • 600,000 calls / month
  • 20 requests / second
  • Hard cap (429 above quota, no overage)
  • 600k calls/month
  • 20 req/sec
  • Priority support
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Mega

€165.00 /month

  • 3,000,000 calls / month
  • 50 requests / second
  • Hard cap (429 above quota, no overage)
  • 3M calls/month
  • 50 req/sec
  • Dedicated SLA
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World Chain API — oanor API marketplace

World Chain API

Real-time on-chain data for World Chain (chain-id 480) — the Optimism-Superchain OP Stack layer-2 powering the Worldcoin / World ID ecosystem. Query live network status (latest block height, network id, client version), fetch any block by height or the latest one (timestamp, transaction count, gas used / limit, base fee, miner), read the current gas price in wei and gwei, and look up the native ETH balance and transaction count of any address. A keyless, no-account JSON wrapper over the canonical World Chain JSON-RPC node — decoded from hex into plain decimals and human-readable ETH so you do not have to. Ideal for explorers, wallets, dashboards, gas estimators and analytics on the Worldcoin chain.

api.oanor.com/worldchain-api

 Blockchair Multi-Chain Stats API — oanor API marketplace

Blockchair Multi-Chain Stats API

Live on-chain network statistics, mempool conditions and market data across the major UTXO blockchains and Ethereum, sourced from Blockchair. For any supported chain read the full network state — best block height, total and 24-hour block and transaction counts, mining difficulty, hashrate, coin circulation, on-chain transfer volume and chain size — or zoom into the mempool to see pending transactions, mempool size, transactions-per-second, the suggested fee per byte (or median gas price on Ethereum) and average and median transaction fees in native units and USD, or pull market data with the coin price in USD and BTC, 24-hour change, market capitalisation and dominance. Ten chains are covered: Bitcoin, Bitcoin Cash, Litecoin, Dogecoin, Dash, Zcash, Bitcoin SV, eCash, Groestlcoin and Ethereum. Distinct from single-chain mempool and gas feeds: this is one consistent multi-chain stats surface.

api.oanor.com/blockchair-api

 DexPaprika On-Chain DEX API — oanor API marketplace

DexPaprika On-Chain DEX API

Live on-chain decentralized-exchange market data across 35+ blockchains, with no key. List every supported network with its 24h DEX volume, transaction count and pool count; read the DEXes active on any chain; pull the top liquidity pools ranked by volume; get full token detail with multi-window price stats; search across every chain for tokens, pools and DEXes; and read global coverage totals. The on-chain / DEX / liquidity-pool layer for DeFi dashboards, token analytics, trading and research — distinct from centralized-exchange ticker readers. Live from DexPaprika (by the CoinPaprika team); short cache only.

api.oanor.com/dexpaprika-api

 EIP Registry API — oanor API marketplace

EIP Registry API

A live, queryable index of every Ethereum Improvement Proposal (EIP) and ERC token standard, read keyless straight from the canonical ethereum/EIPs and ethereum/ERCs repositories. Look up any proposal by number for its title, status (Draft, Review, Last Call, Final, Living, Stagnant or Withdrawn), type and category, authors, creation date, what it requires and its abstract; pull several proposals at once; or list the whole catalog of 1,500+ EIPs and ERCs. The reference layer for wallets, block explorers, documentation sites and developer tooling that need to resolve "what is EIP-1559" or "is ERC-4626 final yet" programmatically instead of scraping a website. Always current — read live from the source repos, lightly cached.

api.oanor.com/eipregistry-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for World Chain API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call World Chain API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for World Chain 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 World Chain API cost?
World Chain API has a free tier with 100 calls / month. Paid plans start at €16.50 / 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 World Chain API GDPR-compliant?
All requests to World Chain 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/world-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/world-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/world-api/SOME_PATH");
curl_setopt($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/world-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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