---
title: "Nym Developer Tools: CLI, Echo & TcpProxy"
description: "Overview of Nym developer tools including nym-cli for blockchain interaction, echo server for traffic testing, and standalone TcpProxy binary downloads."
schemaType: "TechArticle"
section: "Developers"
lastUpdated: "2026-02-01"
---

# Tools

There are a few tools available to developers for chain interaction: the `nym-cli` tool, which operates as an easier-to-use wrapper around `nyxd`, to allow operators to script interactions with their infrastructure (and those who prefer CLI tools).

There is also a basic echo server tool which app developers can use as a quick endpoint for traffic testing. This will be deployed onto a persistent public server in the future so devs dont have to run it themselves.

Finally, there are also a pair of standalone versions of the TcpProxy Rust SDK module for developers to begin experimenting with sending app traffic through them mixnet (**this module will soon be deprecated in place of the `MixSocket`/`MixStream` abstractions**).