> For the complete documentation index, see [llms.txt](https://docs.giwa.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.giwa.io/giwa-chain/en/get-started/smart-contract/develop.md).

# Develop Smart Contracts

Want to develop smart contracts on GIWA?

Follow the guide below to set up your development environment and learn how to build and deploy contracts directly on the GIWA Sepolia Testnet.

***

## Smart contract development

The GIWA chain runs smart contracts on the Ethereum Virtual Machine (EVM), just like Ethereum. The EVM executes low-level instructions called opcodes, similar to how a computer executes machine code.

Developing a smart contract means creating a program that can run on the EVM, compiling it into bytecode, and storing it on-chain for execution.

Because raw opcodes are difficult to work with, developers typically use high-level languages such as [Solidity](https://soliditylang.org/) or [Vyper](https://vyperlang.org/). Solidity has a syntax similar to JavaScript/TypeScript and is the most widely used language among Ethereum developers. Vyper has a syntax closer to Python, designed for readability.

In this guide, we’ll use Solidity, the most common choice for developers.

***

## Setting up the development environment

To develop smart contracts in Solidity, you need a development environment and developer tools.

You can do it with:

* Foundry
* Hardhat
* Remix IDE

Check out the documentations below to learn how to develop using each tool.

{% content-ref url="/pages/gI5IXP07auKJry5orsZS" %}
[Develop with Foundry](/giwa-chain/en/get-started/smart-contract/develop/foundry.md)
{% endcontent-ref %}

{% content-ref url="/pages/N4xpugcqLPvG5GxoqZrC" %}
[Develop with Hardhat](/giwa-chain/en/get-started/smart-contract/develop/hardhat.md)
{% endcontent-ref %}

{% content-ref url="/pages/rmCmC3J1P0NPbdX0czZ9" %}
[Develop with Remix IDE](/giwa-chain/en/get-started/smart-contract/develop/remix-ide.md)
{% endcontent-ref %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.giwa.io/giwa-chain/en/get-started/smart-contract/develop.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
