diff --git a/README.md b/README.md
index abd9da1..75de643 100644
--- a/README.md
+++ b/README.md
@@ -116,6 +116,8 @@ Emoji's for each entry indicate whether it is added to the [Fediverse Party](htt
 
 * :heavy_check_mark: [**http-signature**](https://github.com/mtti/http-signature): Implementation of the HTTP Signature scheme as used in ActivityPub. `Apache-2.0, Typescript`
 
+* [**Incognitum**](https://github.com/Joe-K-Sewell/Incognitum): A .NET Standard library for Mastodon. `MIT, C#`
+
 * :heavy_check_mark: [**Little Boxes**](https://little-boxes.readthedocs.io): Tiny ActivityPub framework, both database and server agnostic `ISC, Python`
 
 * :heavy_check_mark: [**Little Library**](https://github.com/Alamantus/little-library): A digital give-a-book, take-a-book library for ebooks `AGPL-3.0, Javascript`