The main objective of the project is to implement the process of prototyping API services of the administration supporting government administration in consultations on changes in the portfolio of API services provided by its systems, which will allow to assess the suitability and demand for new API services. This will allow the decision to implement changes in API services by government administration units. The project does not involve the production of new e Services and production versions of API services.The CPA project involves the implementation by the public administration of a digital sandbox, a collection of interconnected elements consisting of an IT system, human resources, organisational and information procedures. The solution will provide test versions of API services: existing on the production environment, prepared for implementation and test versions of new API services. The CPA community will be able to use the offered API services in 3 formulas:• OpenLab – an open full-time laboratory available without limitation. CPA participants will have access to the test APIs of public administration and their technical specifications.• Events – cyclical, time-limited, approx. 80 % of all CPA activities. Less formalised and faster assessment of innovation ideas than for initiatives. Planned ok. 1 event/month. Duration of the event: it’s okay. Or weeks. They can overlap in time and be carried out in parallel. • Initiatives – addressed to partners (limited group of participants). Initiatives require greater involvement: the organisers offer substantive support during the initiative, and partners provide a formalised assessment of the tests carried out on new services and solutions. The project will host 4 initiatives.Ideas presented by the CPA community will be evaluated by a team of experts appointed at GovTech Polska, which will decide which of them will be implemented.