Get blocks, transactions, balances, and mempool data across multiple blockchains with one API.
Built with a standardised multi-chain interface, the Blockchains API works across account-based blockchains (EVM chains like Ethereum, Polygon, BSC), UTXO blockchains (Bitcoin, Litecoin, Dogecoin), and newer architectures such as SVM networks.
This allows developers to query blockchain data using a single API format, without worrying about chain-specific RPC differences.
Key Benefits of the Blockchains API
- Unified multi-chain interface – Query EVM, UTXO, and other blockchains using a single API.
- Raw blockchain data access – Retrieve blocks, transactions, balances, and mempool activity.
- Standardised response format – Consistent responses across all supported blockchains.
- Built for blockchain analytics – Ideal for explorers, analytics platforms, and monitoring tools.
- Scalable infrastructure – Designed for high-volume blockchain data queries.
Blockchains API Endpoints
The API provides multiple endpoints for retrieving blockchain data across supported networks.
Get Current Block
GET /v4/data/blockchains/block/current
Retrieve the latest block information for a supported blockchain.
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Get Block Details
GET /v4/data/blockchains/block
Retrieve detailed block information including transactions and metadata.
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Get Transaction Details
GET /v4/data/blockchains/transaction
Retrieve transaction details across supported EVM and UTXO blockchains.
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Get Address Balance
GET /v4/data/blockchains/balance
Retrieve the native balance of an address across supported blockchains.
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Get Mempool Transactions
GET /v4/data/blockchains/mempool
Retrieve pending (unconfirmed) transaction hashes from the mempool.
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Blockchains API FAQs
Which blockchains are supported?
The Blockchains API supports a wide range of networks across multiple architectures including:
- EVM blockchains (Ethereum, Polygon, BNB Smart Chain, Arbitrum, Optimism, Base)
- UTXO blockchains (Bitcoin, Litecoin, Dogecoin, Bitcoin Cash)
- Emerging ecosystems such as Berachain, Monad, and Unichain
What makes the Blockchains API different from native RPC APIs?
Native blockchain RPC APIs differ significantly across chains. The Blockchains API standardizes requests and responses so developers can query multiple blockchains using a consistent interface.
Can I retrieve internal transactions?
Yes. The API supports retrieving internal transactions for multiple EVM networks including Ethereum, BNB Smart Chain, Polygon, Arbitrum, Optimism, Avalanche, and others.
What can developers build using the Blockchains API?
Developers use the Blockchains API to build blockchain explorers, analytics dashboards, compliance tools, transaction monitors, and other applications that require direct blockchain data access.
Use Cases for Developers
- Build blockchain explorers and on-chain analytics dashboards.
- Monitor transactions, blocks, and mempool activity across multiple chains.
- Create compliance and transaction monitoring systems.
- Power wallet infrastructure with blockchain-level insights.
- Aggregate blockchain data for DeFi analytics and research tools.