👋Introduction
Sats Connect is a simple javascript library that connects apps to Bitcoin, Spark, Starknet, Stacks, and other Bitcoin Layer 2 wallets like Xverse.
It’s already powering apps across the BitcoinFi ecosystem, with close to 2 million downloads — making it one of the most widely used ways for developers to integrate Bitcoin wallets today.
✨ What you can do with Sats Connect
Developers building on Bitcoin and its L2s can use Sats Connect to interact directly with users’ wallets:
🔑 Retrieve wallet addresses for Bitcoin, Spark, Starknet, Stacks, and more
✍️ Request signatures of messages for authentication or verification
🔗 Sign & send transactions:
Bitcoin PSBTs
Spark BTC & token transfers
Starknet & Stacks transfers & contract calls
🖼️🔲🪙 Ordinals, Runes & BRC-20:
Track balances across assets
Transfer tokens and inscriptions
Inscribe sats with arbitrary content, create and mint tokens
🛠️ Why Sats Connect?
Wallet-first – every interaction happens directly in the user’s wallet, with explicit approval
Bitcoin-native & multi-asset – supports Bitcoin L1 (BTC, Ordinals, Runes, BRC-20) as well as emerging L2s like Spark, Starknet, and Stacks
Comprehensive toolkit – from simple address retrieval to advanced features like signing PSBTs, transferring Spark tokens, or inscribing Ordinals
Battle-tested – trusted by leading BitcoinFi apps, with close to 2M downloads and a growing developer ecosystem
🚀 Get started
To get started, import sats-connect into your project.
Then request a wallet connection — and explore the docs to unlock the full Bitcoin stack: Bitcoin L1, Spark, Starknet, Stacks, and the assets built on top.
⚡ Power your Bitcoin apps with plug-and-play infra
Sats Connect lets your app connect directly to users’ wallets. The Xverse API gives you plug-and-play access to Bitcoin data and infrastructure — Ordinals, Runes, mempool, balances, transactions, collections, and more — without running your own nodes or indexers.
Together, they remove the heavy lifting so you can focus on building the next generation of Bitcoin apps.
🤝 Join the community
If you’re building with Sats Connect or Xverse API and need help with integration, join our developer forum to connect with the community and the Xverse team.
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