Abstract: The present disclosure relates to systems and methods for application programming interface (API) mapping to address security and operational challenges in modern software ecosystems. The disclosed system introduces an API map that associates API calls with session identifiers, enabling the construction of detailed API transaction lineages and providing attribution to organizational teams, hardware infrastructure, and customer identities. Telemetry data from API gateways, service meshes, and event buses is captured to construct a central API inventory and identify business flows, such as “move money” or “file tax.” The system facilitates anomaly detection, blast radius analysis, incident tracing, and fraud behavior investigation, while reducing mean time to detect (MTTD) and mean time to remediate (MTTR). The non-intrusive design integrates session IDs into HTTP headers, ensuring seamless compatibility with existing systems.

Abstract: Intercommunicating applications (“apps”) on a computational device (typically, but not necessarily, a mobile device) facilitate completion of an eletronic transaction via interaction with a device user and a remote permissions-management server.

Abstract: A method for content storage on behalf of participating content providers begins by having a given content provider identify content for storage. The content provider then uploads the content to a given storage site selected from a set of storage sites. Following upload, the content is replicated from the given storage site to at least one other storage site in the set. Upon request from a given entity, a given storage site from which the given entity may retrieve the content is then identified. The content is then downloaded from the identified given storage site to the given entity. In an illustrative embodiment, the given entity is an edge server of a content delivery network (CDN).