The complete API for Unichain data
Query Unichain balances, transactions, tokens, contracts, and logs using the same Etherscan API that powers Uniscan, with one API key and chainid=130.
Why teams choose Etherscan API for Unichain data
Explorer-grade blockchain data for teams that need accuracy, coverage, scale, and a clear path to multichain data from day one.
The first-choice API for Unichain data
When teams need blockchain data they can defend in front of users, finance, or compliance, they start with the Etherscan API.
The reference layer for onchain data
Built with Uniscan data, the API is used as a reference point to verify balances, transfers, internal transactions, and contract activity on Unichain.
Accuracy that holds up under scrutiny
Capture edge cases many providers miss and reduce time spent reconciling mismatched records across tools.
One integration, 60+ chains
Same endpoints, same structure, one API key across Unichain and other chains. Just set chainid=130 for Mainnet or chainid=1301 for Testnet.
Unichain data through a familiar API
Use the same request parameters, response formats, and API conventions that power Uniscan and other Etherscan-supported explorers.
The default for mission-critical data
If blockchain data is mission-critical, Etherscan API is the default choice for teams that need accuracy and reliability.
How to start querying Unichain with Etherscan API
Get an API key, set the Unichain chain ID, and call the same endpoint structure used across 60+ EVM chains.
Get your API key
Create an Etherscan API key and use it for Unichain Mainnet, Testnet, and other supported chains.
Set the Unichain chain ID
Pass chainid=130 for Unichain Mainnet or chainid=1301 for Unichain Testnet in Etherscan API requests.
Call Unichain endpoints
Use familiar account, token, contract, transaction, and log endpoints to pull Uniscan-grade indexed data into your app.
Single API to access all Endpoints & Metadata
Use Etherscan API with chainid=130 to query indexed Unichain data through a familiar endpoint structure.
All Etherscan API Endpoints
View all our available endpoints on Etherscan API documentation.What you can build with the Unichain API
Build Unichain wallets, accounting tools, security products, and analytics without operating a separate blockchain indexer.
Transaction Reconciliation
Match Unichain normal and internal transactions, token transfers, fees, timestamps, and execution status with ledger entries and imported wallet records.
Tax & Accounting
Turn Unichain activity into tax filings, accounting workflows, and audit reports with internal transactions, token transfers, historical balances, and address metadata.
Financial Reporting & Audit Evidence
Produce Unichain period-end balance checks, transaction schedules, exception reports, and traceable source records for financial review.
NFT & Digital Asset Reporting
Track Unichain ERC-721 and ERC-1155 transfers, token IDs, counterparties, timestamps, and related transactions for ownership and disposal records.
Multichain by Default
Turn your app to multichain with our API that supports over 60+ supported chains.
Start building on Unichain today
Choose an Etherscan API plan and start querying Unichain Mainnet data with chain ID 130.