Orca TX Sender

A lightweight library for sending transactions to Solana with automatic priority fees, Jito tips, compute unit estimation, and retry logic.

Features

• Automatic Priority Fees: Dynamically calculates optimal priority fees based on recent network conditions
• Jito Tips: Optional support for Jito bundles with configurable tip amounts
• Compute Unit Estimation: Automatically estimates and sets compute unit limits with configurable margins
• Retry Logic: Built-in retry mechanism for failed transactions
• Address Lookup Tables: Full support for versioned transactions with ALTs

Packages

This monorepo contains two packages:

Package	Description	npm/crates
ts/	TypeScript SDK	@orca-so/tx-sender
rust/	Rust SDK	orca_tx_sender

Documentation

• TypeScript Documentation
• Rust Documentation

Development

Prerequisites

• Node.js 22+
• Yarn 4.13.0+
• Rust 1.86.0+

Setup

# Install dependencies
yarn install

# Build all packages
yarn build

# Run tests
yarn test

# Lint
yarn lint

License

See LICENSE