One workflow for Soroban smart contracts
BlockSmith is the all-in-one toolkit for Stellar Soroban developers.
No JavaScript. No glue code. From local testing to deployment, everything stays in Rust.
Developing on Stellar could be more efficient.
Soroban Testing is split
Logic runs in the VM, but integration over RPC often means rewriting tests in JavaScript.
Integration Development at Production Fidelity
Local environments lack mainnet state and real-world complexity.
Missing Support for Complex Test Scenarios
Contracts are hard to validate under adversarial or high-entropy conditions.
Limited Assistance for Fixing Contract Issues
Most contract fixes still require manual analysis and patching.
No Practical Way to Run Internal Pre-Audit
Teams lack tooling to catch issues before formal audits.
Cross-Ecosystem Learning Overhead
Adapting contracts across ecosystems adds significant learning overhead and development time.
Meet BlockSmith
BlockSmith is an all-in-one development toolkit purpose-built for Stellar smart contracts on Soroban.
It unifies testing, deployment, local networks, and performance analysis into a single, Rust-native workflow.
[nova] Starting local node...
✓ Local Soroban node is running
[nova] Stopping local node...
✓ All services stopped
[nova] Resetting local node...
✓ Node state cleared and ready to start
Local Node Lifecycle Management
Start, stop, reset, and manage local Soroban nodes with simple commands — fully integrated into your testing workflow.
#[tokio::test]
async fn test() {
// let invoker = RpcClient::new("http://localhost:9000/rpc").await.unwrap();
let ctx = Ctx::new(invoker);
let admin = ctx.generate_address().await;
// ...
// deploy contract, initialize state
// ...
let mut token = token_mod::Contract::new(
ctx.invoker_handle(),
contract_id.to_string(),
);
token.get_admin().await;
}
Unified Rust Testing
Write your tests once in Rust and run them against an in-memory VM or a real Soroban node — with a simple configuration switch
$ blocksmith test --measure
Contract: withdraw_request
──────────────────────────────
CPU Instructions 4,765,041 / 5,000,000 ✓
Memory Bytes 10,002,275 / 10,000,000 ⚠︎
Entry Reads 6 / 10,000 ✓
Entry Writes 3 / 10,000 ✓
$ blocksmith test --measure
Contract: withdraw_request
──────────────────────────────
CPU Instructions 4,765,041 / 5,000,000 ✓
Memory Bytes 10,002,275 / 10,000,000 ⚠︎
Entry Reads 6 / 10,000 ✓
Entry Writes 3 / 10,000 ✓
Testing That Matches Production
Simulate, measure, and understand your contracts before deployment.
Unlock the Future, Exciting Features Await
Embark on a journey of innovation as we prepare to unveil groundbreaking features that will transform your experience.
Mainnet Forking for Soroban
Run contracts against a fully mutable fork of real mainnet state, not just a static snapshot.
AI-Assisted Contract Development
Generate suggest patches, unit tests, and help adapt contract logic across ecosystems.
Internal Pre-Audit Gate
Run automated checks before formal audits to surface issues early and reduce remediation cycles.
Designed for Soroban, Proven by Modern Tooling
BlockSmith brings modern smart contract tooling patterns to Soroban without forcing developers into workflows that don't fit.
Traditional Stack
With BlockSmith
Start building with BlockSmith
Join the private beta and build Soroban contracts with a unified Rust workflow.