diff --git a/docs/Guides/Ecosystem.md b/docs/Guides/Ecosystem.md
index d7c1ac65c4..4476003868 100644
--- a/docs/Guides/Ecosystem.md
+++ b/docs/Guides/Ecosystem.md
@@ -557,3 +557,5 @@ section.
 #### [Community Tools](#community-tools)
 - [`fast-maker`](https://github.com/imjuni/fast-maker) route configuration
   generator by directory structure.
+- [`simple-tjscli`](https://github.com/imjuni/simple-tjscli) CLI tool to
+  generate JSON Schema from TypeScript interfaces.