The recognition of the ecosystem services provided by permanent grasslands and their links to livestock activities is a major challenge for the Massif Central, the first grassland in Europe on the surface. However, land use change and global warming threaten the services rendered and biodiversity in these ecosystems. Thus, livestock must guarantee food security while integrating multiple challenges: reduce its environmental impact, take into account health and societal expectations. Agroecology is one of the responses by the design of livestock systems based on better use of natural processes and functional diversity of grasslands. It is therefore essential to assess the state and contribution of ecosystems to the well-being of societies. This project proposes to provide indicators to study ecosystem services provided by experimental approaches on grasslands, feeding of herbivores, animal products and socio-economic studies. We propose to develop an innovative platform with mobile and motionless sensors, allowing monitoring of the services rendered by livestock systems including: soil, plants, herbivores and atmosphere; mobilise a multidisciplinary partnership; to involve bearers of stakes around the agro-ecological transformation of farming practices, to promote the sharing between local actors and researchers.