diff --git a/README.md b/README.md
index c96efd2..b8da4c1 100644
--- a/README.md
+++ b/README.md
@@ -475,11 +475,13 @@ Websites with lists of relays and their performance/health:
   - [WebLN demo](https://lab.oak-node.net/powpub/uv/wasm-client/) - Simple web demo where clients can pay with WebLN
 - [rana](https://github.com/grunch/rana)![stars](https://img.shields.io/github/stars/grunch/rana.svg?style=social) - Vanity pubkey miner based on nip13
 
-## Peer-to-peer
+## Peer-to-peer markets
 
+- [crusty-n3xb](https://github.com/nobu-maeda/crusty-n3xb) ![stars](https://img.shields.io/github/stars/nobu-maeda/crusty-n3xb.svg?style=social) - Rust library implementing the n3xB Bitcoin exchange protocol
 - [mostro](https://github.com/MostroP2P/mostro) ![stars](https://img.shields.io/github/stars/MostroP2P/mostro.svg?style=social) -  Daemon for Lightning Network peer-to-peer exchange platform on Nostr (WIP)
 - [mostro-cli](https://github.com/MostroP2P/mostro-cli) ![stars](https://img.shields.io/github/stars/MostroP2P/mostro-cli.svg?style=social) - CLI client to operate with Mostro (WIP)
 - [mostro-web](https://github.com/MostroP2P/mostro-web) ![stars](https://img.shields.io/github/stars/MostroP2P/mostro-web.svg?style=social) - Web client to operate with Mostro (WIP)
+- [n3xB](https://github.com/nobu-maeda/n3xb) ![stars](https://img.shields.io/github/stars/nobu-maeda/n3xb.svg?style=social) - Proposal for a Bitcoin exchange protocol and a globally shared order book on Nostr
 
 ## NIP-07 Browser extensions