SDK Libraries

The NEAR SDK for Rust (near-sdk-rs) is the official library for developing smart contracts. Rust provides the most mature tooling, best performance, and the strongest safety guarantees when handling real assets on-chain.

The best place to start learning is our QuickStart Guide.

Rust SDK

Rust SDK reference documentation.

Smart contracts on NEAR

This is how a smart contract written in Rust using the NEAR SDK looks like:

#[near(contract_state)]
pub struct Contract {
    greeting: String,
}

impl Default for Contract {
    fn default() -> Self {
        Self { greeting: "Hello".to_string(), }
    }
}

#[near]
impl Contract {
    pub fn get_greeting(&self) -> String {
        self.greeting.clone()
    }

    pub fn set_greeting(&mut self, greeting: String) {
        self.greeting = greeting;
    }
}

Community SDKs

Since NEAR contracts compile to WebAssembly, the community maintains SDKs for other languages. They are great for prototyping and learning, but are not covered in this documentation:

Ready to start developing?

Start from our Smart Contract QuickStart Guide, and let it guide you through all our documentation on building smart contracts.

Want to see examples?

We have a section dedicated to tutorials and examples that will help you understand diverse use cases and how to implement them.

Reference docs

If you need to find a specific function signature, or understand the SDK structs and classes, visit the Rust SDK reference.

Building Smart Contracts

DevKit

Tutorials

Rust SDK

Smart contracts on NEAR

Community SDKs

Ready to start developing?

Want to see examples?

Reference docs

Rust SDK

​Smart contracts on NEAR

​Community SDKs

​Ready to start developing?

​Want to see examples?

​Reference docs

Smart contracts on NEAR

Community SDKs

Ready to start developing?

Want to see examples?

Reference docs