> For the complete documentation index, see [llms.txt](https://sodex.com/documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sodex.com/documentation/for-developers/developers/valuechain-evm.md).

# ValueChain EVM

ValueChain EVM is the EVM-compatible system chain for the SoDEX ecosystem. It maintains shared system state and provides the account and settlement layer used by application-specific chains.

## Network configuration

| Network | Chain ID | HTTP JSON-RPC                    | WebSocket                         | Explorer                           |
| ------- | -------- | -------------------------------- | --------------------------------- | ---------------------------------- |
| Mainnet | `286623` | `https://mainnet.valuechain.xyz` | `wss://mainnet-ws.valuechain.xyz` | `https://main-scan.valuechain.xyz` |
| Testnet | `138565` | `https://testnet.valuechain.xyz` | `wss://testnet-ws.valuechain.xyz` | `https://test-scan.valuechain.xyz` |

`SOSO` is the native gas token and uses 18 decimals on both networks. Target slot time is 2 seconds.

## Concepts

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[Differences from Ethereum](/documentation/for-developers/developers/valuechain-evm/differences-from-ethereum.md)
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[Gas & Fees](/documentation/for-developers/developers/valuechain-evm/gas-and-fees.md)
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[Transaction Finality](/documentation/for-developers/developers/valuechain-evm/transaction-finality.md)
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## Contracts

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[Contracts](/documentation/for-developers/developers/valuechain-evm/contracts.md)
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## Build

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[Developer Tools](/documentation/for-developers/developers/valuechain-evm/developer-tools.md)
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[Transaction Relayer](/documentation/for-developers/developers/valuechain-evm/relayer.md)
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[ValueChain JSON-RPC](/documentation/for-developers/api-reference/json-rpc.md)
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