BlackSec Agent
The desktop AI coding companion. Multi-model chat, browser automation and a plugin system — built for security researchers and developers who want full control of the client on their own machine.
Free installer · Windows x64 · Installer License applies
Download
The installer is served directly from BlackSec. There is no third-party mirror and no public repository — this is the only distribution channel.
Verify your download
Every build is published with a SHA-256 digest. Compare the hash of the file you received before you run the installer — a mismatch means a corrupted or altered file, so delete it and download again rather than troubleshooting further.
# Windows PowerShell
Get-FileHash .\BlackSecAgent-Setup-x64.exe -Algorithm SHA256
# expected digest
not published yet
The full procedure, including what a mismatch means, is in the verification guide.
Built for the terminal generation
Everything you need in an AI coding companion, nothing you don't.
Multi-Model Chat
Switch between models mid-conversation. OpenAI, Anthropic, local models — all from one interface.
IAB Browser Tool
Interactive AI Browser lets the agent browse, click, and interact with the web in real time.
Keyboard-Driven
Alt+N new chat, Ctrl+K search, Ctrl+/ shortcuts. Designed for speed, not mouse menus.
Encrypted API Keys
AES-256-GCM encrypted key storage. Your credentials never touch disk in plaintext.
Usage Telemetry
Track tokens, latency, and cost per request. Full observability into every API call.
Plugin System
Extend with MCP servers, custom skills, and hooks. Automate your workflow end-to-end.
Tagged Conversations
Color-coded labels, batch operations, and instant search. Keep hundreds of threads organized.
Streaming Responses
Real-time SSE streaming with thinking indicators. See the model reason as it works.
What it actually does
BlackSec Agent is a client, not a model. It holds your conversations, your configuration and your tooling locally, and talks to the same OpenAI-compatible gateway your API keys already use.
- Model routing
- Point the agent at the platform gateway and every model your plan can reach is available in the picker. Switch models mid-conversation without losing the thread.
- Browser automation
- The Interactive AI Browser tool lets the agent drive a real browser session — navigating, clicking and reading pages — instead of only reasoning about text you paste in.
- Extensibility
- MCP servers, custom skills and hooks extend the agent into your own tooling, so repetitive work can be automated end to end rather than scripted by hand.
- Credential handling
- API keys are stored with AES-256-GCM encryption, and the session token lives in memory and the OS credential store rather than being written to disk in plaintext.
$ blacksec-agent
╭──────────────────────────────────────────╮
│ BlackSec Agent Desktop AI Companion │
╰──────────────────────────────────────────╯
API connected models online
Browser tool Plugin system
$ > Select a model to start chatting...
Keyboard first
A deliberately small shortcut set, so it stays in muscle memory.
System requirements
Minimum
- Windows 10 or 11 (x64)
- 4 GB RAM
- 200 MB free disk space
- Internet connection
Recommended
- Windows 11
- 8 GB RAM
- SSD storage
- Node.js 18+ (required only for plugins)
The installer places the application in %LOCALAPPDATA%\BlackSec\Agent by default.
Distribution and integrity
One source
BlackSec Agent is a private, closed-source product. There is no public repository and no third-party mirror — the installer is published only from this site.
Verifiable builds
Every build ships with a published SHA-256 digest, so you can confirm the file on your disk is byte-for-byte what was released.
Verified updates
The agent can update itself, and each update package is verified by cryptographic hash before it is applied. A failed check aborts the update.
Ready to install?
Grab the current Windows build, verify its digest, and you are two minutes from your first conversation.