generated: '2026-07-20'
method: searched
source: npm registry + crates.io (first-party OffchainLabs / @arbitrum packages)
packages:
  - language: typescript
    registry: npm
    name: "@arbitrum/sdk"
    version: 4.1.0
    url: https://www.npmjs.com/package/@arbitrum/sdk
    install: npm install @arbitrum/sdk
    description: TypeScript library for client-side interactions with Arbitrum (bridging, retryable tickets, gas estimation).
    repository: https://github.com/OffchainLabs/arbitrum-sdk
    official: true
  - language: typescript
    registry: npm
    name: "@arbitrum/orbit-sdk"
    version: 0.26.0
    url: https://www.npmjs.com/package/@arbitrum/orbit-sdk
    install: npm install @arbitrum/orbit-sdk
    description: TypeScript SDK for configuring and deploying Arbitrum (Orbit) chains and their core contracts.
    repository: https://github.com/OffchainLabs/arbitrum-orbit-sdk
    official: true
  - language: solidity
    registry: npm
    name: "@arbitrum/nitro-contracts"
    url: https://www.npmjs.com/package/@arbitrum/nitro-contracts
    install: npm install @arbitrum/nitro-contracts
    description: Smart contracts powering Arbitrum Nitro (rollup, bridge, sequencer inbox, precompiles).
    repository: https://github.com/OffchainLabs/nitro-contracts
    official: true
  - language: solidity
    registry: npm
    name: "@arbitrum/token-bridge-contracts"
    version: 1.2.5
    url: https://www.npmjs.com/package/@arbitrum/token-bridge-contracts
    install: npm install @arbitrum/token-bridge-contracts
    description: Contracts implementing the canonical Arbitrum token bridge (gateways, gateway router).
    repository: https://github.com/OffchainLabs/token-bridge-contracts
    official: true
  - language: rust
    registry: crates.io
    name: stylus-sdk
    version: 0.10.8
    url: https://crates.io/crates/stylus-sdk
    install: cargo add stylus-sdk
    description: Rust SDK for writing EVM-compatible smart contracts on Arbitrum Stylus.
    repository: https://github.com/OffchainLabs/stylus-sdk-rs
    official: true
  - language: rust
    registry: crates.io
    name: cargo-stylus
    version: 0.10.8
    url: https://crates.io/crates/cargo-stylus
    install: cargo install cargo-stylus
    description: CLI tool (cargo subcommand) for building, checking, and deploying Stylus contracts on Arbitrum chains.
    repository: https://github.com/OffchainLabs/stylus-sdk-rs
    official: true
    is_cli: true