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Steel — regolith-labs

Steel is a Rust framework for developing Solana smart contracts, providing helper functions, macros and code patterns for program structure, account handling, validation, events and common operations.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Steel — regolith-labs — OpenViST project profile in Developer Tools.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Steel when writing Solana program logic in Rust and you want framework-provided macros, account parsers and common-operation helpers alongside a CLI project workflow.

Who it is for

  • Rust developers building Solana smart contracts
  • Teams seeking reusable account, instruction and validation patterns for Solana programs

Documented uses

  • Create a Solana program project with the Steel CLI.
  • Define account and instruction types with macros that link them to discriminators and basic serialization.
  • Validate account data and signer, writable, mint and token-account conditions.
  • Add custom errors and events, and use helpers for operations such as lamport or token transfers.
  • Compile and test a program using the Solana toolchain.
Before you choose

Requirements & limits

  • Steel is under active development, and the README warns that interfaces can change.
  • The project describes its code as unaudited.
  • IDL generation and localnet and mainnet toolchains are listed as unfinished.
  • The recommended API/program workspace layout is optional, not enforced.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Create, compile and test a Steel project

Use the documented CLI workflow to create a project, then compile and test it with the Solana toolchain.

Before you start

  • Rust Cargo, to install the Steel CLI
  • The Solana toolchain, for compilation and testing

Steps

  1. Install the CLI with the command below.

    Documented command
    cargo install steel-cli

  2. Create a project with steel new my-project.

  3. From the project, compile with steel build.

  4. Run the documented test command, steel test.

Expected outcome

A Steel project is created, and the documented commands invoke its build and test stages.

Guide limitations

  • Steel is under active development and interfaces may change.
  • The project states that its code is unaudited.
  • The README lists localnet and mainnet toolchains as unfinished.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
17 October 2026
Original website title
regolith-labs/steel · Official homepage title · retained in its source language
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