*A network scanner written in Rust. CLI, terminal UI, desktop app, and MCP server. One library behind all four.* [![CI](https://github.com/fstubner/netscli/actions/workflows/ci.yml/badge.svg)](https://github.com/fstubner/netscli/actions/workflows/ci.yml) [![crates.io](https://img.shields.io/crates/v/netscli.svg)](https://crates.io/crates/netscli) [![Release](https://img.shields.io/github/v/release/fstubner/netscli)](https://github.com/fstubner/netscli/releases) [![Downloads](https://img.shields.io/github/downloads/fstubner/netscli/total)](https://github.com/fstubner/netscli/releases) [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT) **[Documentation](https://netscli.com/docs/)** · **[Install](https://netscli.com/docs/install/)** · **[Changelog](https://netscli.com/changelog/)**

## Why this exists The terminal UI came first. I wanted to understand how the newer TUIs work, the ones coding agents like Claude Code have put real effort into. Autocomplete, command history, in-place progress, and a UI that does not take over the terminal, so scrollback and copying text keep working. Building one seemed like the way to learn it, and a network scanner gave it something to do. The MCP server came next. I thought it would be interesting to let an agent work with a network that way. Ask which device just joined, or whether port 22 is open on some host, instead of shelling out to another tool and parsing output that was written for a person to read. Then the CLI, for programmatic use. A script or a cron job wants one command and JSON back, not an interactive session. The desktop app came last. Some people would rather have a GUI than a terminal, and honestly I sometimes prefer it myself over running the commands locally. Three of them are the same binary. `netscli ` is the CLI, `netscli` on its own opens the terminal UI, and `netscli serve` starts the MCP server. The desktop app is a separate download over the same core. ## Screenshots

## Install ```bash # macOS / Linux brew tap fstubner/tap && brew install netscli # Windows winget install netscli # CLI, TUI and MCP server winget install netscli-gui # desktop app # Any platform, via cargo cargo install netscli ``` Desktop installers for Windows, macOS and Linux are attached to every [release](https://github.com/fstubner/netscli/releases/latest). Scoop, the AUR, the one-line install scripts, packet-capture builds and signature verification are all covered in the **[install guide](https://netscli.com/docs/install/)**. ## Usage ```bash netscli discover # find hosts on the local subnet netscli scan 192.168.1.10 -p 22,80,443 netscli inspect example.com # ping + scan + resolve netscli dns example.com # all record types netscli arp # ARP table with vendor lookup netscli interfaces ``` Every command that returns a result takes `--json` or `--yaml`, so results pipe straight into `jq`, and the ones that return a list also take `--csv` and `--md`. Run `netscli` with no arguments for the terminal UI: slash commands with autocomplete, command history, scrollback and `/export`. Full command reference: **[CLI](https://netscli.com/docs/cli/)** · **[TUI](https://netscli.com/docs/tui/)** · **[desktop app](https://netscli.com/docs/desktop/)** ## MCP server ```json { "mcpServers": { "netscli": { "command": "netscli", "args": ["serve"] } } } ``` That form needs netscli installed. To skip the install, use `npx` as the command (`"command": "npx", "args": ["-y", "netscli", "serve"]`), or open an `.mcpb` bundle from the [latest release](https://github.com/fstubner/netscli/releases/latest) in a client that supports them. Nine tools by default: discover, scan, ping, DNS, ARP, inspect, sweep, interfaces and mDNS. Packet-capture builds add four more. Details and the full schemas are in the **[MCP guide](https://netscli.com/docs/mcp/)**. ## Documentation | Page | Covers | | --- | --- | | [Overview](https://netscli.com/docs/) | What it does, the interface model, safety limits | | [Installation](https://netscli.com/docs/install/) | Every install route, per platform | | [CLI](https://netscli.com/docs/cli/) | Commands, flags, structured output | | [Terminal UI](https://netscli.com/docs/tui/) | Slash commands and session behaviour | | [Desktop app](https://netscli.com/docs/desktop/) | Tabs, filters, exports | | [MCP server](https://netscli.com/docs/mcp/) | Tools, schemas, agent setup | | [Interface coverage](https://netscli.com/docs/interface-coverage/) | Which capabilities each interface exposes | | [Operations](https://netscli.com/docs/operations/) | What each scan actually does | | [Result model](https://netscli.com/docs/result-model/) | Shape of the JSON and YAML output | | [Packet capture](https://netscli.com/docs/packet-capture/) | Requirements and the pcap builds | | [Core library](https://netscli.com/docs/core-library/) | Using `netscli-core` directly | ## Contributing Issues and pull requests are welcome. Building from source, the desktop app dev loop, packet-capture builds and the repository layout are all in [CONTRIBUTING.md](CONTRIBUTING.md). ## License MIT. See [LICENSE](LICENSE).