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Ecosystem
The open-source toolkit aims to accelerate development of self-custodial wallets for a programmable, multi-asset financial ecosystem.
October 17, 2025

Companies mentioned:
Tether has announced the launch of its Wallet Development Kit (WDK), a fully open-source toolkit designed to simplify the creation of self-custodial cryptocurrency wallets.
The WDK provides developers with a standardized framework and includes starter wallet templates for both iOS and Android. This initiative is designed to lower the barrier for developers to build applications that support Tether’s suite of stablecoins, including USD₮, XAU₮, and USA₮, alongside Bitcoin and the Lightning Network.
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By open-sourcing the toolkit, Tether aims to foster a broader ecosystem of interoperable and non-custodial financial products. The company envisions the WDK being used to build wallets for a vast number of applications and users, including everything from human-operated payment and savings tools to a "trillion AI agents" operating in an automated financial landscape.
This move signals a strategic push to embed Tether’s assets more deeply into the fabric of the digital economy by empowering developers to innovate on top of its infrastructure. The focus on self-custody aligns with a core principle of the crypto industry, giving users ultimate control over their own assets.
Read More:
https://docs.wallet.tether.io/
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