Agile refers to certain software development techniques. Learning about these techniques can contribute to the technical professional development units to maintain a PMP certification. The technical category is one of three areas in the PMI Talent Triangle. Agile is not a listed tool or technique for any of the PMI processes.
Some forms of Agile techniques include Scrum, Lean, Kanban, Extreme Programming (XP).
PMI has a certification for PMI Agile Certified Practitioner (PMI-ACP)®.