Blockchain API
What is the Block API?​
The Blockchain API enables Web3 developers to quickly get data on specific blocks across multiple blockchains, in order to help them build and scale their dapps efficiently.
Block API Features​
The Blockchain API provides the following functionality out of the box to power the dapps you are building:
- fetching the contents of a block given the block hash
- fetching the closest block given the date
Plus so much more!
Popular use cases​
The Blockchain API is extremely flexible, meaning it can support a wide range of use cases, including:
- Block Explorer
- Transaction Monitoring
- Log Explorers
- Wallet Activity
Supported chains​
The Blockchain API supports multiple EVM chains:
| Name | Chain Id (Int) | Chain Id (Hex) | EvmChain | Type |
|---|---|---|---|---|
| Ethereum Mainnet | 1 | 0x1 | EvmChain.ETHEREUM | Mainnet |
| Ethereum Sepolia | 11155111 | 0xaa36a7 | EvmChain.SEPOLIA | Testnet |
| Ethereum Holesky | 17000 | 0x4268 | EvmChain.HOLESKY | Testnet |
| Polygon Mainnet | 137 | 0x89 | EvmChain.POLYGON | Mainnet |
| Polygon Amoy | 80002 | 0x13881 | EvmChain.POLYGON_AMOY | Testnet |
| Binance Smart Chain Mainnet | 56 | 0x38 | EvmChain.BSC | Mainnet |
| Binance Smart Chain Testnet | 97 | 0x61 | EvmChain.BSC_TESTNET | Testnet |
| Avalanche C-Chain | 43114 | 0xa86a | EvmChain.AVALANCHE | Mainnet |
| Fantom | 250 | 0xfa | EvmChain.FANTOM | Mainnet |
| Cronos Mainnet | 25 | 0x19 | EvmChain.CRONOS | Mainnet |
| Palm | 11297108109 | 0x2a15c308d | EvmChain.PALM | Mainnet |
| Arbitrum | 42161 | 0xa4b1 | EvmChain.ARBITRUM | Mainnet |
| Gnosis | 100 | 0x64 | EvmChain.GNOSIS | Mainnet |
| Gnosis Chiado | 10200 | 0x27d8 | EvmChain.GNOSIS_TESTNET | Testnet |
| Base | 8453 | 0x2105 | EvmChain.BASE | Mainnet |
| Base Sepolia | 84532 | 0x14a34 | EvmChain.BASE_SEPOLIA | Testnet |
| Optimism | 10 | 0xa | EvmChain.OPTIMISM | Mainnet |
| Optimism Sepolia | 11155420 | 0xaa37dc | EvmChain.OPTIMISM_SEPOLIA | Testnet |
| Linea | 59144 | 0xe708 | EvmChain.LINEA | Mainnet |
| Linea Sepolia | 59141 | 0xe705 | EvmChain.LINEA_SEPOLIA | Testnet |
| Moonbeam | 1284 | 0x504 | EvmChain.MOONBEAM | Mainnet |
| Moonriver | 1285 | 0x505 | EvmChain.MOONRIVER | Testnet |
| Moonbase | 1287 | 0x507 | EvmChain.MOONBASE | Testnet |
| Chiliz Mainnet | 88888 | 0x15b38 | EvmChain.CHILIZ | Mainnet |
| Chiliz Testnet | 88882 | 0x15b32 | EvmChain.CHILIZ_TESTNET | Testnet |