Bitcoin (BTC) Now Supported on Fystack: Secure BTC Transfers with MPC Wallet Infrastructure

Bitcoin has been the most requested chain from teams building on Fystack.

Today, we’re excited to share that Bitcoin is now supported on Fystack. Teams can now create receive deposits, and execute BTC transfers using the same operational environment they already use to manage stablecoins and other supported assets.

We just released our open-source indexer for mulitiple chains here: https://github.com/fystack/multichain-indexer

Policy uniformity across Bitcoin and stablecoins

Bitcoin infrastructure is fundamentally different from EVM-based networks.

Different transaction models, address formats, and signing mechanisms often force companies to maintain separate operational workflows for BTC and stablecoins.

With this release, Fystack unifies the policy and approval layer across chains.

That means teams can apply the same operational controls such as:

• transaction approvals
• spending limits
• monitoring alerts

to both BTC and stablecoin transactions within the same system.

For organizations managing multi-asset treasuries, this significantly reduces operational complexity and the risk of manual mistakes.

Features

Users can now deposit BTC directly into their Fystack wallets.

Deposit

With our advanced monitoring system, teams can track incoming BTC deposits and wallet activity in real time.

Users can also configure alerts to stay informed whenever there are incoming transactions or balance changes.

Withdrawal

BTC withdrawals can be coordinated among multiple team members.

This allows organizations to enforce internal approval workflows before transactions are executed, ensuring stronger operational security when managing Bitcoin.

Automatic approval limit

Teams can also set an automatic approval limit for BTC withdrawals.

Transactions below this threshold can be processed automatically, while larger transfers can require manual approval from multiple team members.

Sweep automation engine

Teams can configure automated rules to sweep BTC between wallets. For example, moving funds from hot wallets to cold storage once a balance threshold is reached.

Infrastructure sovereignty for Bitcoin

Today, many organizations still manage Bitcoin through hardware wallets or centralized custody SaaS platforms.

Fystack offers a different approach.

With MPC-secured wallet infrastructure and self-host deployment options, teams can operate their Bitcoin treasury with full control over their infrastructure and signing environment.

This model is particularly valuable for institutions, exchanges, and large BTC holders that require strong security guarantees without relying on centralized custody providers.

Sign up at https://app.fystack.io/ to create an MPC wallet for your team.

Fystack is also open-source. Developers are welcome to explore the code, contribute improvements, and help build the future of crypto wallet infrastructure.

⭐ If you find Fystack useful, consider starring our GitHub repository:
https://github.com/fystack