The article discusses the progress and innovations in protonic ceramic electrochemical cells for sustainable hydrogen production. Various studies have been conducted to tailor the chemical stability of protonic conductors like Ba(Ce0.8−xZrx)Y0.2O3−δ for intermediate temperature solid oxide fuel cells (IT-SOFCs). One study focused on self-sustainable protonic ceramic electrochemical cells utilizing a triple conducting electrode for hydrogen and power production. Researchers are exploring triple‐conducting layered perovskites as cathode materials and mixed proton and electron conducting double perovskite anodes for stable and efficient proton ceramic electrolyzers. Efforts to lower the temperature of solid oxide fuel cells are aimed at achieving highly energy-efficient conversion of ethane to ethylene and hydrogen at temperatures below 550°C. The chemical stability of various proton conductors in different atmospheres and conditions is also under investigation for optimal performance. Overall, the advancements in this field are contributing to the development of more efficient and sustainable hydrogen production technologies.