diff --git a/README.md b/README.md
index a6aa619..ba435f0 100644
--- a/README.md
+++ b/README.md
@@ -302,6 +302,7 @@ Websites with lists of relays and their performance/health:
 - [Zappix](https://github.com/derekross/zappix)![stars](https://img.shields.io/github/stars/derekross/zappix.svg?style=social) - A nostr image sharing application for browsing, sharing, and zapping visual content. [Zappix.app](https://zappix.app/)
 - [zephyr](https://github.com/coracle-social/zephyr)![stars](https://img.shields.io/github/stars/coracle-social/zephyr.svg?style=social) - A meditative nostr feed reader
 - [pocket-wallet](https://github.com/RetricSu/pocket-wallet)![stars](https://img.shields.io/github/stars/RetricSu/pocket-wallet.svg?style=social) - PocketWallet is a nostr-based wallet on CKB blockchain supportting Nip07 and Nip46.
+- [cassette](https://cassette.cafe) - Portable WASM relays with standardized interface/bindings.
 
 ### Nostr Marketplace clients (NIP-15 & NIP-99)