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