Embodiments include managing Identity Provider (IdP) identifiers for Web Real-Time Communications (WebRTC) interactive flows, and related methods, systems, and computer-readable media. In one embodiment, a method for managing IdPs comprises selecting, by a WebRTC client executing on a computing device, one or more preferred IdP identifiers indicated by one or more preferences from a plurality of IdP identifiers corresponding to a plurality of IdPs for providing identity assertions during an establishment of a WebRTC interactive flow. The method further comprises obtaining one or more identity assertions from respective ones of the plurality of IdPs corresponding to the one or more preferred IdP identifiers. The method also comprises providing, during the establishment of the WebRTC interactive flow, the one or more identity assertions. In this manner, an entity may specify the IdP used for identity authentication, and the number of identity assertions provided during initiation of the WebRTC interactive flow.