Mesh ships a @Cardano and Bitcoin wallet SDK funded through Catalyst
Mesh has released a combined Cardano and Bitcoin wallet SDK under its Catalyst Fund 14 proposal, giving developers a single interface across both chains with headless wallets, script handling, and open-source code under Apache 2.0.
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@meshsdk has shipped a combined $ADA and $BTC wallet SDK, giving developers a unified interface for building across both the Cardano and Bitcoin networks. The release, funded through Cardano's community grant programme Project Catalyst, marks a meaningful step in cross-chain developer tooling from one of the ecosystem's most active open-source teams.
What the SDK Includes
Mesh is an open-source, production-ready TypeScript SDK for Cardano blockchain development. The new wallet extension builds on that foundation by adding Bitcoin support through a single developer interface. The package includes headless wallets, Bitcoin primitives for address and script handling that mirror those already familiar to Cardano developers, and full support for transaction and data signing across both chains. All code is released under the Apache 2.0 licence, with documentation published publicly.
The SDK connects to Xverse and other Bitcoin browser extensions via a unified Sats Connect API. On the Cardano side, it provides wallets, transaction builders, data utilities, smart contract libraries, and blockchain providers in one SDK.
Catalyst Fund 14 Funding and Milestones
The work sits under Mesh's Catalyst Fund 14 proposal, budgeted at 100,000 ADA. Four of the five milestones have received approved proof of achievement, with the fifth currently awaiting closeout. A total of 76,000 ADA has been released to date.
Project Catalyst is a growth engine and grants programme for the Cardano blockchain ecosystem that has funding rounds every few months, with a set amount of funds ready to allocate to ideas. With 13 rounds of community voting already completed, more than 3 million votes cast, and over $100 million distributed to community-approved proposals, Catalyst has become a critical launchpad for Cardano builders.
For developers already working with Mesh on Cardano, the Bitcoin extension lowers the cost of building multi-chain applications considerably, removing the need to maintain separate toolchains for each network.
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Crypto RichRich has been researching cryptocurrency and blockchain technology for eight years and has served as a senior analyst at BSCN since its founding in 2020. He focuses on fundamental analysis of early-stage crypto projects and tokens and has published in-depth research reports on over 200 emerging protocols. Rich also writes about broader technology and scientific trends and maintains active involvement in the crypto community through X/Twitter Spaces, and leading industry events.