C-Chain API

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Ethereum has its own notion of networkID and chainID. These have no relationship to Avalanche’s view of networkID and chainID and are purely internal to the C-Chain. On Mainnet, the C-Chain uses 1 and 43114 for these values. On the Fuji Testnet, it uses 1 and 43113 for these values. networkID and chainID can also be obtained using the net_version and eth_chainId methods.

Avalanche offers an API interface identical to Geth's API. Check the full list of supported method calls here.

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Custom C-Chain methods:

• avax.getAtomicTx
• avax.getAtomicTxStatus
• avax.getUTXOs
• avax.issueTx
• eth_baseFee
• eth_maxPriorityFeePerGas