# Reference

{% hint style="danger" %}
The following information is deprecated and may limit its use. Please refer to the WalletConnect 2.0 tab for the latest version of NEOPIN wallet integration: [walletconnect-2.0](https://docs.neopin.io/developers/walletconnect-2.0 "mention")
{% endhint %}

* [WalletConnect Docs](https://docs.walletconnect.com/specs)
* [WalletConnect Github (Version 1.7.8)](https://github.com/WalletConnect/walletconnect-monorepo/tree/v1.0)
* [JSON-RPC 2.0](https://www.jsonrpc.org/specification)
* [ethersjs](https://github.com/ethers-io/ethers.js)