Tether has released its Bitcoin mining operating system, Mining OS or MOS, as open source. The software aims to simplify management for operators ranging from home setups to industrial-scale operations.
Tether CEO Paolo Ardoino announced the full open-source release on February 3 in a post on X. He described MOS as a modular platform that supports operations across multiple locations through encrypted peer-to-peer networking and broad hardware compatibility. The company unveiled MOS as open source the previous day, February 2, at the Plan ₿ Forum in San Salvador.
MOS manages and automates Bitcoin mining through a single interface. Operators can monitor hardware performance, energy usage, cooling systems, and overall site operations from one dashboard. Its modular design allows customization via independent components connected through a shared system.
The platform runs locally on devices without depending on centralized servers. Peer-to-peer networking enables direct device communication, which Tether states enhances reliability and privacy compared to many commercial tools.
Released under the Apache 2.0 license, MOS permits free use, modification, and distribution. It operates on lightweight devices for small-scale mining rigs and scales to deployments with thousands of machines. Tether plans to introduce a companion Mining SDK, enabling developers to create custom tools and extensions. The company will finalize the SDK framework with open-source community input.
The open-source MOS seeks to decrease miners’ reliance on proprietary platforms like Hive OS and Foreman, which impose recurring fees. Tether indicates this can enable smaller operators to compete more effectively against large public mining companies.
This release aligns with Tether’s increased involvement in Bitcoin infrastructure. The company has extended network support and financed mining projects emphasizing operational efficiency and renewable energy sources in recent years.
Tether reduced certain mining operations in late 2025 amid higher energy costs. The MOS initiative centers on software development, not hardware ownership. Tether positions the project as a long-term commitment to decentralized infrastructure.
Tether’s Bitcoin holdings have grown steadily. Since 2023, the company has directed portions of profits toward Bitcoin acquisitions as a strategic reserve, in addition to traditional assets. As of early 2026, Tether held approximately 96,185 BTC, valued at more than $8 billion, ranking it among the largest corporate holders worldwide.
MOS supports encrypted peer-to-peer networking across sites, broad hardware compatibility for various setups, and local execution to avoid single points of failure. Tether’s announcement highlights its design for both individual miners with home rigs and enterprise-level farms managing thousands of ASICs.
The Apache 2.0 license ensures developers worldwide can fork, improve, and redistribute the code. Upcoming Mining SDK will include APIs for integrating third-party monitoring, automation scripts, and analytics tailored to specific hardware or energy profiles.
Paolo Ardoino’s X post on February 3 confirmed the code’s availability on GitHub, inviting contributions. The Plan ₿ Forum unveiling in San Salvador drew mining executives and drew attention to Tether’s pivot toward software solutions post its 2025 hardware adjustments.
Tether’s 96,185 BTC stash as of early 2026 underscores its conviction in Bitcoin, with allocations from operational profits since 2023 bolstering reserves. This positions Tether ahead of many firms in corporate adoption metrics.
