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Unichain API by Etherscan

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.

Trusted by teams at
Coinbase Coingecko Coingecko Metamask Metamask Binance
130
Unichain Mainnet chain ID
1301
Unichain Testnet chain ID
60+ EVM Chains
with one API key
99.99%
uptime status

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.

API key Active
YourApiKeyToken
One key for Unichain + 60+ chains
Step 1

Get your API key

Create an Etherscan API key and use it for Unichain Mainnet, Testnet, and other supported chains.

Unichain Mainnet 130
Unichain Testnet 1301
chainid=130 V2
Step 2

Set the Unichain chain ID

Pass chainid=130 for Unichain Mainnet or chainid=1301 for Unichain Testnet in Etherscan API requests.

Unichain query Ready
Balances & transfers
Contracts & logs
Tokens & receipts
Step 3

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.
View All Endpoints

What you can build with the Unichain API

Build Unichain wallets, accounting tools, security products, and analytics without operating a separate blockchain indexer.

Unichain transaction reconciliation API visual Unichain transaction reconciliation API visual Unichain transaction reconciliation API visual

Transaction Reconciliation

Match Unichain normal and internal transactions, token transfers, fees, timestamps, and execution status with ledger entries and imported wallet records.

Build with: /txlist /txlistinternal /getstatus and more
Unichain tax and accounting API visual Unichain tax and accounting API visual Unichain tax and accounting API visual

Tax & Accounting

Turn Unichain activity into tax filings, accounting workflows, and audit reports with internal transactions, token transfers, historical balances, and address metadata.

Build with: /tokenbalance /txlist /tokennfttx and more
Unichain financial reporting API visual Unichain financial reporting API visual Unichain financial reporting API visual

Financial Reporting & Audit Evidence

Produce Unichain period-end balance checks, transaction schedules, exception reports, and traceable source records for financial review.

Build with: /addresstokenbalance /balancehistory /getlogs and more
Unichain NFT and digital asset reporting API visual Unichain NFT and digital asset reporting API visual Unichain NFT and digital asset reporting API visual

NFT & Digital Asset Reporting

Track Unichain ERC-721 and ERC-1155 transfers, token IDs, counterparties, timestamps, and related transactions for ownership and disposal records.

Build with: /tokennfttx /token1155tx /getlogs and more

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.

Etherscan API supported chains