Checkbook provides digital payment solutions, focusing on digital check technology and simplified payment processes. The company offers services for sending individual or bulk checks, invoicing, multi-party payments, and facilitating transactions between vendors and customers in marketplace settings.

Checkbook's platform integrates various payment functionalities, including digital checks, invoices, and multi-party endorsable payments. The company emphasizes cost-efficiency and convenience, catering to businesses of all sizes with scalable solutions. Checkbook also offers resources and integrations to support seamless adoption of their payment technologies.