This demonstration paper introduces the urdflib library for MicroPython, which facilitates the development of RDF manipulation programs for embedded devices that run MicroPython, and additionally ensures the API is compatible with the widely used RDFLib Python library. The library is openly available on GitHub, a demo is presented, and the performances of the library are evaluated on the Unix and the ESP32 ports of MicroPython. urdflib performs better than RDFLib on the Unix port.