Some embodiments of the present disclosure present network-based exchange processing techniques for facilitating credential-less exchanges. To do so, some of the techniques of the present disclosure leverage new data structures, UUEKs, that may replace persistent credentials traditionally used to authorize a value-based exchange. Using the techniques of the present disclosure, a UUEK may be securely issued across member platforms to allow a user to execute a value-based exchange using an identifier that is recognizable to a single party, the exchange platform. The UUEK may be mapped to unique identifiers that may reference sensitive information without directly identifying (and thereby exposing) the sensitive information. A unique identifier, for example, may reference a mapping only interpretable by a source platform, such that the identifiers are unusable by malicious parties unaffiliated with the exchange platform. In this manner, the exchange platform may distribute, track, and facilitate exchanges without exposing member platforms to data security risks. Moreover, the exchange platform may continuously update, modify, and/or redistribute UUEKs to the member platforms to continuously adapt UUEKs in real time. In this manner, the exchange platform may provide technical improvements to data and network security, while reducing the computing resource requirements (e.g., for securely encrypting persistent credentials) for facilitating value-based exchanges.