General Remarks

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API Standard          Data Standard          API Security
        REST                        YAML                OAuth 2.0 (FAPI)

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The API's interface architecture is based on representational state transfer (REST). This decision is motivated by the aim for fast performance, reliability and the ability to scale, against the background of a state-of-the-art approach with a future-proofed perspective.

The API is documented by the use of up-to-date technologies to ease its use by software developers. Therefore, the complete documentation of the API specification is also available electronically, based on YAML OpenAPI 3.0x files.

Conceptual Foundation

To ease the design of the API Spec, an existing meta model for the definition of the business domains was wanted. The choice of the spec team fell on BIAN as conceptual foundation of the Common API Specification for Banking (CAPS).