# Echo Echo is a messaging application built on Enigma’s core primitives. It provides authenticated, identity-scoped signaling between participants, allowing systems to exchange data over the dynamic network layer. Echo demonstrates how identity and authorization models can support multi-party coordination without requiring centralized message brokers or persistent connections.\ \ **Echo demonstrates:** * Authenticated signaling across changing network paths * Coordination without centralized brokers or global trust * Identity-based authorization for data exchange --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.engma.io/built-on-enigma/echo.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.