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API · /worldchain-api

World Chain API

healthy 4,648 Subscribers

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.

#worldchain #worldcoin #ethereum-l2 #op-stack #blockchain #crypto #evm #rpc
api.oanor.com/worldchain-api
Get an API key Try in playground → Contact provider

Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
127 ms
Server probes · 24h
Subscribers
4,648
active
Total calls
5
last 7 days
status Full status page → · 10 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 4,400 calls / month
  • 3 requests / second
  • Hard cap (429 above quota, no overage)
  • 4.4k calls/month
  • 3 req/sec
  • All 5 endpoints
  • No credit card
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Basic

€13.40 /month

  • 61,500 calls / month
  • 10 requests / second
  • Hard cap (429 above quota, no overage)
  • 61.5k calls/month
  • 10 req/sec
  • Status, blocks, gas & balances
  • Email support
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Pro

€34.60 /month

  • 246,000 calls / month
  • 25 requests / second
  • Hard cap (429 above quota, no overage)
  • 246k calls/month
  • 25 req/sec
  • Higher throughput
  • Priority support
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Mega

€74.20 /month

  • 982,000 calls / month
  • 60 requests / second
  • Hard cap (429 above quota, no overage)
  • 982k calls/month
  • 60 req/sec
  • Production scale
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

World Chain API

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.

api.oanor.com/world-api

Zircuit API

Real-time on-chain data for Zircuit (chain-id 48900) — the zero-knowledge rollup layer-2 on Ethereum with AI-driven Sequencer Level Security. 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 Zircuit 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 Zircuit ZK rollup.

api.oanor.com/zircuit-api

Scroll API

Real-time on-chain data for Scroll (chain-id 534352) — the native zkEVM layer-2 that scales Ethereum with zero-knowledge proofs. 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 Scroll 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 Scroll zkEVM rollup.

api.oanor.com/scroll-api

Orderly API

Live Orderly on-chain data via Blockscout. Orderly is an omnichain orderbook 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.

api.oanor.com/orderly-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 €13.40 / 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/worldchain-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/worldchain-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/worldchain-api/SOME_PATH");
curl_setopt($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/worldchain-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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