diff --git a/README.md b/README.md
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@@ -332,6 +332,8 @@ For an overview of known relays, see [Relay List, a regularly updated, sorted li
 
 * :heavy_check_mark: [**Moderator Alerts**](https://gitlab.com/stemid/mastodon-moderator-alerts) ([Fedi account](https://mastodon.se/@stemid)): Mastodon moderation alerts using Pushover.net. `-, Python`
 
+* [**WebAP Browser Extension**](https://github.com/webap-api/webap-browser-extension): This is a browser extension that implements the [WebAP API](https://github.com/webap-api/WebAP-API) (still an idea), exposing it to web applications. `MIT, Typescript`
+
 ### Testing
 
 * :heavy_check_mark: [**activitypub-mock**](https://gitlab.com/evanp/activitypub-mock): A mock ActivityPub server to use in testing code `Apache-2.0, Javascript`