> ## Documentation Index
> Fetch the complete documentation index at: https://developers.particle.network/llms.txt
> Use this file to discover all available pages before exploring further.

# SDK Reference (EvmService)

> Reference for the common EvmService SDK extension.

Throughout many of Particle Network's SDKs, a common **`EvmService`** module is included. It enables direct programmatic utilization of Particle's suite of **enhanced RPC endpoints**, and more (such as transaction construction, contract interaction, etc.). These methods provide simple ways of retrieving **rich on-chain data** with minimal added complexity.

A full reference of common methods alongside their parameters **can be found below**.

| Class      | Methods                  | Parameters (\* indicates optional)                                      |
| ---------- | ------------------------ | ----------------------------------------------------------------------- |
| EvmService | rpc                      | method, params                                                          |
| EvmService | getPrice                 | addresses, currencies                                                   |
| EvmService | getTokensAndNFTs         | address                                                                 |
| EvmService | getTokens                | address                                                                 |
| EvmService | getNFTs                  | address                                                                 |
| EvmService | getTransactionsByAddress | address                                                                 |
| EvmService | suggestGasFee            |                                                                         |
| EvmService | estimateGas              | from, to, value, data                                                   |
| EvmService | erc20Transfer            | contractAddress, to, amount                                             |
| EvmService | erc20Approve             | contractAddress, spender, amount                                        |
| EvmService | erc20TransferFrom        | contractAddress, from, to, amount                                       |
| EvmService | erc721SafeTransferFrom   | contractAddress, from, to, tokenId                                      |
| EvmService | erc1155SafeTransferFrom  | contractAddress, from, to, id, amount, data\*                           |
| EvmService | abiEncodeFunctionCall    | contractAddress, methodName, params, abiJsonString                      |
| EvmService | getTokenByTokenAddress   | address, tokenAddresses                                                 |
| EvmService | readContract             | contractAddress, methodName, params, abiJsonString                      |
| EvmService | writeContract            | from, contractAddress, methodName, params, abiJsonString, gasFeeLevel\* |
| EvmService | createTransaction        | from, data, value, to, gasFeeLevel\*                                    |
| EvmService | getSmartAccount          | eoaAddresses, version                                                   |