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+# Deploying and Interacting with EVM Smart Contracts
+
+## Table of Contents
+
+- [Overview](#overview)
+- [Prerequisites](#prerequisites)
+- [Chain Endpoints](#chain-endpoints)
+  - [Testnet](#testnet)
+  - [Mainnet](#mainnet)
+- [Using Standard EVM Tooling](#using-standard-evm-tooling)
+- [Using Polkadot JS Interface](#using-polkadot-js-interface)
+  - [Deploying a Contract](#deploying-a-contract)
+  - [Interacting with Contracts (evm.call)](#interacting-with-contracts-evmcall)
+- [Address Formats](#address-formats)
+- [Troubleshooting](#troubleshooting)
+
+## Overview
+
+Liberland blockchain implements EVM compatibility through [Frontier](https://github.com/polkadot-evm/frontier), enabling deployment and interaction with Ethereum smart contracts on a Substrate-based chain. Most standard EVM tooling works with Liberland blockchain out-of-the-box.
+
+## Prerequisites
+
+- Compiled smart contract bytecode
+- Account with LLD tokens for gas fees
+- Access to Polkadot JS Apps or standard Ethereum development tools
+
+## Chain Endpoints
+
+### Testnet
+
+| Type     | URL                                                                                                   | Description                             | Chain ID |
+| -------- | ----------------------------------------------------------------------------------------------------- | --------------------------------------- | -------- |
+| RPC      | `https://testchain.liberland.org`                                                                     | HTTP endpoint                           | 12865    |
+| Explorer | [Polkadot Apps](https://dotapps-io.ipns.dweb.link/?rpc=wss%3A%2F%2Ftestchain.liberland.org#/explorer) | Web interface for exploring the testnet | -        |
+
+### Mainnet
+
+| Type     | URL                                                                                                       | Description                                | Chain ID |
+| -------- | --------------------------------------------------------------------------------------------------------- | ------------------------------------------ | -------- |
+| RPC      | `https://mainnet.liberland.org`                                                                           | HTTP endpoint (operated by the Government) | 12864    |
+| Explorer | [Polkadot Apps](https://dotapps-io.ipns.dweb.link/?rpc=wss%3A%2F%2Fliberland-rpc.n.dwellir.com#/explorer) | Web interface for exploring the mainnet    | -        |
+
+## Using Standard EVM Tooling
+
+Liberland blockchain is fully compatible with standard Ethereum tools. You can deploy and interact with contracts using:
+
+- **MetaMask**: Add Liberland network using the RPC endpoints and Chain IDs above
+- **Hardhat/Truffle**: Configure with Liberland RPC endpoint
+- **Remix IDE**: Connect via MetaMask or direct RPC
+- **ethers.js/web3.js**: Use standard libraries with Liberland provider
+
+## Using Polkadot JS Interface
+
+For users who prefer Substrate-native tooling, contracts can also be deployed and managed through the Polkadot JS Apps interface.
+
+### Deploying a Contract
+
+**Via Polkadot JS Apps UI:**
+
+1. Navigate to Developer > Extrinsics
+2. Select `evm.create` extrinsic
+3. Fill parameters:
+   - **source**: EVM address assigned to your Substrate account
+   - **init**: Contract bytecode (0x-prefixed hex)
+   - **value**: Amount to send (usually 0)
+   - **gasLimit**: Estimated gas (e.g., 3000000)
+   - **maxFeePerGas**: Gas price (e.g., 100000000)
+   - **maxPriorityFeePerGas**: Priority fee (optional, can be left as None)
+   - **accessList**: Leave empty unless specific access is required
+
+![EVM Create Form](../media/evm-smart-contracts-create.png)
+
+4. Submit transaction
+5. Navigate to Network > Explorer
+6. Find contract address in `evm.Created` event
+
+![EVM Created event](../media/evm-smart-contracts-created-event.png)
+
+### Interacting with Contracts (evm.call)
+
+Use `evm.call` for both read and write operations on deployed contracts.
+
+**Via Polkadot JS Apps UI:**
+
+1. Navigate to Developer > Extrinsics
+2. Select `evm.call` extrinsic
+3. Fill parameters:
+   - **source**: EVM address assigned to your Substrate account
+   - **target**: EVM address of the deployed contract
+   - **input**: ABI-encoded function call (0x-prefixed hex)
+   - **value**: Amount to send (0 for most operations)
+   - **gasLimit**: Estimated gas
+   - **maxFeePerGas**: Gas price (e.g., 100000000)
+   - **maxPriorityFeePerGas**: Priority fee (optional)
+   - **accessList**: Leave empty
+
+![EVM Call Form](../media/evm-smart-contracts-call.png)
+
+4. Submit transaction
+
+## Address Formats
+
+Liberland blockchain uses two address formats:
+
+- **H160 (Ethereum)**: 20-byte addresses (0x...) used for EVM operations
+- **SS58 (Substrate)**: 32-byte addresses used for Substrate operations
+
+When using Polkadot JS interface, addresses are automatically converted between formats. When using standard EVM tooling, use H160 addresses exclusively.
+
+## Troubleshooting
+
+### Common Issues
+
+- **Gas estimation errors**: Increase `gasLimit` and/or `maxFeePerGas` parameters
+- **Transaction reverted**: Check contract logic and input encoding
+- **Address format errors**: Ensure correct format (H160 for EVM operations)
+- **Insufficient balance**: Ensure account has enough LLD for gas fees on both Substrate and EVM side
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