This toolkit is designed to help states leverage their managed care purchasing authority to advance primary care innovation. Based on the experience of states participating in the Center for Health Care Strategies Advancing Primary Care Innovation in Medicaid Managed Care national learning collaborative, the toolkit outlines design considerations and shares sample contract and procurement language within four key areas: 1) identifying and addressing social needs; 2) integrating behavioral health care; 3) enhancing team-based care; and 4) using technology to improve access. The toolkit also compares how three leading states—New York, Ohio, and Oregon—are advancing high-quality primary care in key domains and how they are leveraging managed care and specific payment methods to reimburse for patient-centered medical homes.