diff --git a/Backend/README.md b/Backend/README.md
index fbcf1e7..7c5c9cc 100644
--- a/Backend/README.md
+++ b/Backend/README.md
@@ -145,6 +145,11 @@ Stream realtime events:
 - Client receives `stream:started` when camera accepts.
 - Both devices receive `stream:ended` when session is closed.
 
+Experimental SFU scaffolding endpoints (`MEDIA_MODE=single_server_sfu`):
+- `GET /streams/:streamSessionId/sfu/session` – fetch in-memory SFU session state for participant devices
+- `POST /streams/:streamSessionId/sfu/publish-transport` – camera creates publish transport descriptor
+- `POST /streams/:streamSessionId/sfu/subscribe-transport` – participant creates subscribe transport descriptor
+
 #### Streaming Scale Tradeoffs (Current Prototype)
 - The current implementation is **not production-grade at scale**.
 - Video quality and reliability currently depend on direct browser-to-browser WebRTC success, with a low-fps frame relay fallback in the simulator.