- Tether’s WDK will include a starter wallet for iOS and Android.
- The kit supports humans, AI agents, and autonomous systems.
- WDK is open source, modular, and designed for large-scale adoption.
Paolo Ardoino, CEO of Tether, confirmed that the stablecoin issuer will release a fully open-source Wallet Development Kit (WDK) this week.
The release will include a compact “Starter Wallet” for iOS and Android that serves as a practical example of how developers can use the toolkit to rapidly build complete digital asset wallets.
The Tether Wallet Development Kit (WDK)
The WDK is Tether’s latest effort to accelerate the development of non-custodial financial tools.
According to Ardoino, the kit is intended to help developers and businesses integrate secure, self-custody wallets into their applications with minimal effort.
It features a modular and highly scalable architecture designed for easy deployment across platforms and use cases.
In demonstrations shared by Ardoino, the Starter Wallet already shows a full suite of features, including multiple mnemonic backup options, peer-to-peer functionality, and decentralized finance (DeFi) tools such as lending, swapping, and asset management.
Tether describes the WDK as “supermodular” and “battle-tested,” emphasizing a strong focus on security, flexibility, and interoperability.
By releasing the kit as open source, Tether invites the global developer community to inspect, contribute to, and extend its capabilities.
One notable aspect of this development is that the WDK is not only intended for human users.
Tether designed the toolkit to support machine interactions, including those from AI agents and robots.
This aligns with the company’s broader goal of enabling autonomous digital systems that can securely manage and transfer value without human intervention.
Ardoino noted that the WDK’s architecture is built to withstand complex, real-world scenarios and to operate across all blockchains supported by Tether’s stablecoins.
The timing of Ardoino’s launch follows Tether’s preview of the WDK at the Lugano Plan ₿ event, where he highlighted its peer-to-peer structure and privacy-preserving capabilities.
The company has long emphasized the importance of non-custodial models, positioning them as key to both financial inclusion and data sovereignty.
Tether’s AI team has also developed related tools, including a machine translation engine, a voice assistant, and an AI-powered Bitcoin wallet assistant that lets users—or even AI agents—interact with wallets using natural language commands.
Ardoino’s announcement was ambitious, claiming the WDK could enable “billions of self-custody wallets.”
While ambitious, the projection underscores Tether’s vision for broad adoption and integration across industries and devices.
The initiative aims to make it easier for businesses, developers, and individuals to deploy secure digital wallets, expanding access to financial services in emerging markets where self-custody and stablecoins are already playing a growing role.
Tether’s Financial Strength
The WDK launch comes at a time of considerable financial strength for Tether.
The company recently reported roughly $4.9 billion in net profit for Q2 2025, bringing total profit for the first half of the year to $5.7 billion.
It also disclosed holdings of more than $127 billion in U.S. treasury bills, solidifying its position among the largest holders of U.S. government debt.
Meanwhile, Tether’s flagship stablecoin, USDT, reached an all-time high market capitalization of $180.32 billion following the issuance of an additional $1 billion in October.
The combination of financial strength and product innovation suggests Tether is expanding its influence not only as a stablecoin issuer but also as a key infrastructure provider for digital finance.
Publishing the WDK as open source signals Tether’s confidence in its technology and a commitment to transparency, while betting that the future of finance will be built on privacy, autonomy, and interoperability.
Once the open-source version is live, attention will turn to how the developer community responds and the initial wave of projects built on the WDK.
If successful, this initiative could mark a significant milestone in Tether’s broader mission to make self-custodial finance accessible to both people and machines—and potentially influence value transfer in the next era of the digital economy.