diff --git a/_data/toc.yml b/_data/toc.yml
index 9d26749..546ad45 100644
--- a/_data/toc.yml
+++ b/_data/toc.yml
@@ -15,6 +15,8 @@ Advanced:
   - docs/persistence.md
   - docs/best-practices.md
 Reference:
+  - title: GitHub API
+    url: "http://octokit.github.io/rest.js/"
   - title: robot
     url: "https://probot.github.io/api/latest/Robot.html"
   - title: context