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JSON-RPC

Ethereum type JSON-RPC Methods

Pre-requisite Readings

Below is a list of Ethereum type JSON-RPC Methods where users can curl via local node. While you can also surf to our swagger playgroundfor a better understanding.

JSON-RPC Methods

Web3

Method Namespace Implemented Public
web3_clientVersion Web3 ✔ ✔
web3_sha3 Web3 ✔ ✔

Getting Blocks

Method Namespace Implemented Public
eth_getBalance Eth ✔ ✔
eth_getBlockByNumber Eth ✔ ✔
eth_getBlockByHash Eth ✔ ✔

Read data

Method Namespace Implemented Public
eth_call Eth ✔ ✔
eth_getTransactionByHash Eth ✔ ✔
eth_getTransactionCount Eth ✔ ✔
eth_getTransactionReceipt Eth ✔ ✔
eth_getBlockTransactionCountByNumber Eth ✔ ✔
eth_getBlockTransactionCountByHash Eth ✔ ✔
eth_getTransactionbyBlockNumberAndIndex Eth ✔ ✔
eth_getTransactionByBlockHashAndIndex Eth ✔ ✔
eth_sign Eth ✔
eth_coinbase Eth ✔

Writing data

Method Namespace Implemented Public
eth_sendTransaction Eth ✔
eth_sendRawTransaction Eth ✔ ✔
eth_sendPrivateTransaction Eth
eth_cancelPrivateTransaction Eth

Account

Method Namespace Implemented Public
eth_getBalance Eth ✔ ✔
eth_getStorageAt Eth ✔ ✔
eth_getCode Eth ✔ ✔
eth_accounts Eth ✔
eth_getProof Eth ✔

Event Logs

Method Namespace Implemented Public
eth_getLogs Eth ✔ ✔
eth_getFilterChanges Eth ✔
eth_getFilterLogs Eth ✔
eth_newBlockFilter Eth ✔
eth_newFilter Eth ✔
eth_newPendingTransactionFilter Eth ✔
eth_uninstallFilter Eth ✔

Chain

Method Namespace Implemented Public
eth_protocolVersion Eth ✔ ✔
eth_gasPrice Eth ✔ ✔
eth_estimateGas Eth ✔ ✔
eth_feeHistory Eth ✔ ✔
eth_maxPriorityFeePerGas Eth ✔ ✔
eth_chainId Eth ✔ ✔
eth_syncing Eth ✔ ✔
eth_blockNumber Eth ✔ ✔
net_listening Net ✔ ✔
net_version Net ✔ ✔
net_peerCount Net ✔ ✔

Websocket

Method Namespace Implemented Public
eth_subscribe Websocket ✔
eth_unsubscribe Websocket ✔

{% hint style="info" %} Tip
Block Number can be entered as a Hex string, "earliest", "latest" or "pending". {% endhint %}

{% hint style="info" %} When using batch requests, we currently only allow 3 objects for Mainnet and 5 objects for Testnet {% endhint %}

JSON-RPC namespaces

Pre-requisite Readings

Ethereum Namespaces

Namespace Description Supported Enabled by Default
eth Cronos provides several extensions to the standard eth JSON-RPC namespace. ✔ ✔
web3 The web3 API provides utility functions for the web3 client. ✔ ✔
net The net API provides access to network information of the node ✔ ✔
clique The clique API provides access to the state of the clique consensus engine. You can use this API to manage signer votes and to check the health of a private network. ❌
debug The debug API gives you access to several non-standard RPC methods, which will allow you to inspect, debug and set certain debugging flags during runtime. ✔
les The les API allows you to manage LES server settings, including client parameters and payment settings for prioritized clients. It also provides functions to query checkpoint information in both server and client mode. ❌
miner The miner API allows you to remote control the node’s mining operation and set various mining specific settings. ✔ ❌
txpool The txpool API gives you access to several non-standard RPC methods to inspect the contents of the transaction pool containing all the currently pending transactions as well as the ones queued for future processing. ✔ ❌
admin The admin API gives you access to several non-standard RPC methods, which will allow you to have a fine grained control over your nodeinstance, including but not limited to network peer and RPC endpoint management. ❌
personal The personal API manages private keys in the key store. ✔ ❌