diff --git a/website/docs/user-guide/configuration.md b/website/docs/user-guide/configuration.md
index 1c491a48c..055fdb3d3 100644
--- a/website/docs/user-guide/configuration.md
+++ b/website/docs/user-guide/configuration.md
@@ -1200,6 +1200,8 @@ web:
 
 **Parallel search modes:** Set `PARALLEL_SEARCH_MODE` to control search behavior — `fast`, `one-shot`, or `agentic` (default: `agentic`).
 
+**Exa:** Set `EXA_API_KEY` in `~/.hermes/.env`. Supports `category` filtering (`company`, `research paper`, `news`, `people`, `personal site`, `pdf`) and domain/date filters.
+
 ## Browser
 
 Configure browser automation behavior: