The passport data model should be API-ready from the start. Article 77 requires open standards, an interoperable format, transfer through an open interoperable data exchange network without vendor lock-in, and data that is machine-readable, structured, and searchable.
Article 78 adds operational requirements: free access based on access rights, storage by the responsible operator or authorised processor, availability if the responsible operator ceases activity in the Union, restricted write and update rights, authentication, reliability, integrity, security, privacy, and fraud prevention.