This article seeks to understand why Kenyans have responded so enthusiastically to the recent push, by the government and NGOs, for voluntary labor within health and development projects and interventions. It argues that voluntary labor gains meaning and value in relation to broader economies of work and unemployment, to anxieties about identity, recognition, and belonging, and to aspirations for personal as well as national development. In the context of precarious economies and the contraction of formal employment opportunities, voluntary labor constitutes valued, if unpaid, work; it offers opportunities for those excluded from formal employment to gain a valued identity and a sense of social worth; and it makes volunteers visible to powerful institutions (state and nonstate) that hold the keys to personal growth, social recognition, and developmental futures. Voluntary labor is a site of struggles about identity, social value, and recognition, which the decline of twentieth-century trajectories of progress has made acute.