Add ADA (#668)

diff --git a/landing-pages/site/content/en/ecosystem/_index.md b/landing-pages/site/content/en/ecosystem/_index.md
index 6b49706..740412a 100644
--- a/landing-pages/site/content/en/ecosystem/_index.md
+++ b/landing-pages/site/content/en/ecosystem/_index.md
@@ -91,6 +91,8 @@
 
 ## Tools integrating with Airflow
 
+[ADA](https://github.com/IBM/ada) - A microservice created to retrieve analytics metrics from an Airflow database instance.
+
 [as-scraper](https://github.com/Avila-Systems/as-scraper) - An integration with Selenium to build & mantain web scrapers inside Airflow.
 
 [afctl](https://github.com/qubole/afctl) - A CLI tool that includes everything required to create, manage and deploy airflow projects faster and smoother.