Hiro

Build on Stacks

Hiro builds developer tools for Stacks, the network that enables apps and smart contracts for Bitcoin.

View the docs

New to Stacks? Start here

Why Stacks?

Enabling apps, smart contracts, and digital assets for Bitcoin

Build apps on Bitcoin

Stacks connects to Bitcoin and makes it programmable, enabling you to build apps, smart contracts, and digital assets that are integrated with Bitcoin's security, capital, and network.

Write safe smart contracts

Stacks enables smart contracts for Bitcoin with Clarity, a smart contract language optimized for security and predictability. It’s perfect for high-stakes code where bugs are not an option.

Innovate on Bitcoin

Stacks makes it easy to build Bitcoin-based logic into your smart contracts. This enables you to build apps and smart contracts that make the most of Bitcoin’s capital and network.

Stacks.js

All you need to build apps and smart contracts for Bitcoin

Stacks.js is a monorepo of libraries for authentication, storage, transactions, stacking, and more. It includes turnkey solutions for decentralized authentication, signing transactions, and data storage.

Explore the docs

Clarity smart contracts

Author, deploy, and integrate Clarity smart contracts

A complete toolkit for Clarity smart contracts, including a Javascript library, testing environement, and a browser-based Sandbox.

Explore the docs

More ways to build

CLI

Command-line interface for interacting with auth, storage, transactions, and more.

npm install @stacks/cli

View CLI docs

Stacks Blockchain API

Query anything from transactions, to smart contracts, blocks and accounts. The API comes with its own JS client and real-time updates.

View API docs

Stacks Explorer

Explore transactions and accounts on the Stacks blockchain. Clone any contract and experiment in your browser with the Explorer sandbox.

Open Stacks Explorer

Hiro Wallet

The most secure wallet for Stacks

Hiro Wallet is a safe place to store your STX, single-sign on for decentralized apps and it protects your funds when you interact with smart contracts. Downloadable as a browser extension or as a desktop app.

Get Hiro Wallet

Join the global Stacks community

Build together

We host hundreds of events for the Stacks ecosystem every year. From hackathons, to strategy sessions, community calls and meetups. Join us at one of our events or meet us on the official Stacks Discord.

Join the Stacks Discord ↗

View all events

NFT.NYC

Times Square, NYC

1 November - 4 September

LA Blockchain Summit

Virtual

2 November - 4 November