diff --git a/README.md b/README.md
index 9897959..2afc364 100644
--- a/README.md
+++ b/README.md
@@ -131,6 +131,14 @@ npx mcp-remote https://example.remote/server --transport sse-only
 - `http-only`: Only uses HTTP transport, fails if the server doesn't support it
 - `sse-only`: Only uses SSE transport, fails if the server doesn't support it
 
+### Post-Auth Redirect URI
+
+To customize the redirect behavior after an OAuth flow, include a `postAuthRedirectUri` query parameter in the request to the OAuth callback endpoint. This parameter specifies where users should be redirected after successful authentication.
+
+Ensure that your server appends `postAuthRedirectUri` as a query parameter when invoking the `redirectUri`.
+
+Once authentication is complete, users will be redirected to the specified URI instead of seeing the default "Authorization successful" message. This allows you to deliver a smoother user experience by guiding users to a custom post-authentication page.
+
 ### Claude Desktop
 
 [Official Docs](https://modelcontextprotocol.io/quickstart/user)