xsandt

xsandt is a cross-domain data interchange standard and software framework designed to enable interoperability between sensors, analytics tools, and data platforms. It defines a compact, extensible schema and a binary serialization format, with APIs across multiple programming languages and a streaming capability.

The term xsandt is an acronym for Cross-domain Sensor and Data Transport. The project domain emerged in academic and industry collaborations in the late 2010s as a response to fragmentation in sensor data pipelines.

It uses a schema language to describe data types; supports versioning and backward compatibility; uses an optional JSON wrapper for readability; includes security measures like integrity checks and optional encryption; supports both pull and push data models; has reference implementations in Python, C++, and Java.

While not as widely adopted as established formats like JSON, Protocol Buffers, or Apache Avro, xsandt has been used in experimental projects across IoT, environmental monitoring, and industrial automation to unify heterogeneous datasets.

Related concepts include data serialization, IoT standards, and cross-domain data exchange.