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API · /zircuit-api

Zircuit API

healthy 3,473 Subscribers

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.

#zircuit #zk-rollup #ethereum-l2 #zkevm #blockchain #crypto #evm #rpc
api.oanor.com/zircuit-api
Get an API key Try in playground → Contact provider

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

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
160 ms
Server probes · 24h
Subscribers
3,473
active
Total calls
5
last 7 days
status Full status page → · 10 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 5,200 calls / month
  • 3 requests / second
  • Hard cap (429 above quota, no overage)
  • 5.2k calls/month
  • 3 req/sec
  • All 5 endpoints
  • No credit card
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Basic

€13.60 /month

  • 62,400 calls / month
  • 10 requests / second
  • Hard cap (429 above quota, no overage)
  • 62.4k calls/month
  • 10 req/sec
  • Status, blocks, gas & balances
  • Email support
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Pro

€33.60 /month

  • 241,500 calls / month
  • 25 requests / second
  • Hard cap (429 above quota, no overage)
  • 241.5k calls/month
  • 25 req/sec
  • Higher throughput
  • Priority support
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Mega

€72.80 /month

  • 949,000 calls / month
  • 60 requests / second
  • Hard cap (429 above quota, no overage)
  • 949k calls/month
  • 60 req/sec
  • Production scale
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

B2 Network API

Real-time on-chain data for B² Network (B-Squared, chain-id 223) — the Bitcoin Layer-2 ZK-rollup that commits its proofs back to Bitcoin, EVM-compatible and using BTC as its native gas token. 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 BTC balance and transaction count of any address. A keyless, no-account JSON wrapper over the canonical B² Network JSON-RPC node — decoded from hex into plain decimals and human-readable BTC so you do not have to. Ideal for explorers, wallets, dashboards, gas estimators and analytics on the B² Network Bitcoin L2.

api.oanor.com/bsquared-api

Merlin Chain API

Real-time on-chain data for Merlin Chain (chain-id 4200) — the Bitcoin Layer-2 ZK-rollup built on the Polygon CDK stack, EVM-compatible and using BTC as its native gas token. 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 BTC balance and transaction count of any address. A keyless, no-account JSON wrapper over the canonical Merlin Chain JSON-RPC node — decoded from hex into plain decimals and human-readable BTC so you do not have to. Ideal for explorers, wallets, dashboards, gas estimators and analytics on the Merlin Chain Bitcoin L2.

api.oanor.com/merlin-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

Starknet API

Live on-chain data from Starknet, the Ethereum Layer 2 zk-rollup built on the Cairo VM and STARK proofs, via a public Starknet JSON-RPC node. Starknet has no externally-owned accounts: every account is a smart contract with native account abstraction, and fees are paid in STRK or ETH. Resolve an address's transaction nonce, the account contract class it runs and its STRK and ETH balances, read straight from the fee-token contracts. Get a block's number, hash, status, timestamp, sequencer and transaction count. Look up any transaction with its type, finality and execution status, the address that sent it and the actual fee paid. Read the live chain state — the chain id, the JSON-RPC spec version, the latest block and whether the node is syncing. Live, no key, nothing stored. Distinct from the XRP Ledger, Stellar, TRON, Aptos, Algorand, Tezos, Cardano, Hedera, Kaspa, Cosmos, Sui, NEAR, MultiversX, Solana and EVM on-chain APIs and from price feeds — this is Starknet's Cairo-account state, balances, blocks and transactions. Perfect for wallets, explorers and analytics apps.

api.oanor.com/starknet-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Zircuit API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Zircuit API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Zircuit 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 Zircuit API cost?
Zircuit API has a free tier with 100 calls / month. Paid plans start at €13.60 / 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 Zircuit API GDPR-compliant?
All requests to Zircuit 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/zircuit-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/zircuit-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/zircuit-api/SOME_PATH");
curl_setopt($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/zircuit-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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