diff --git a/Using-the-API/API.md b/Using-the-API/API.md
index bdfba0fd..230558a6 100644
--- a/Using-the-API/API.md
+++ b/Using-the-API/API.md
@@ -55,6 +55,7 @@ ___
 - [For Java, Kotlin](https://github.com/sys1yagi/mastodon4j)
 - [For C#](https://github.com/pawotter/mastodon-api-cs)
 - [For Haskell](https://github.com/syucream/hastodon)
+- [For Crystal](https://github.com/decors/mastodon.cr)
 - [For C#(.NET Standard)](https://github.com/yamachu/Mastodot)
 
 ___