Update README.md

README.md

@@ -8,3 +8,15 @@ pinned: false
 ---
 
 Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+# CodexHF Sovereign API Gateway
+
+This is the RESTful API backend for evaluating work descriptions via the Codex Work-as-Value engine. It includes ethical constraint enforcement (CodexΛ) and symbolic output.
+
+## Endpoints
+- POST /evaluate
+
+## Setup
+```
+pip install -r requirements.txt
+uvicorn api_gateway:app --reload
+```