CyberStrike

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The first open-source AI agent built for offensive security.

Automated penetration testing from your terminal — plug in your Claude, GPT, or any LLM subscription
and turn it into an autonomous red team agent with 13+ specialized agents and 120+ OWASP test cases.

Quick Start • Intelligence Layer • What Makes It Different • Agents • Web UI • Bolt • MCP Ecosystem • Installation • Docs • Website

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Quick Start

npm i -g @cyberstrike-io/cyberstrike@latest && cyberstrike

That's it. CyberStrike launches a TUI in your terminal, asks for your LLM provider and API key on first run, and you're ready to go. Tell it what to test — it handles reconnaissance, vulnerability discovery, exploitation, and reporting autonomously.

Already have a Claude Code or OpenAI subscription? CyberStrike's intelligence layer sits on top of your existing AI subscription. No separate API costs — your current plan powers an entire pentest toolkit.

Explore the full documentation at docs.cyberstrike.io or visit cyberstrike.io for demos and guides.

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Intelligence Layer

CyberStrike isn't just a wrapper around an LLM. It's an intelligence layer that transforms any AI model into an offensive security specialist.

How it works: When you connect your LLM provider, CyberStrike injects domain-specific context — OWASP testing methodology, vulnerability patterns, attack chain reasoning, and tool orchestration logic — into every interaction. The model doesn't need to know security; CyberStrike teaches it.

What the intelligence layer provides:

• Schema normalization — Structured output from any provider, regardless of response format differences
• Context guard — Prevents prompt leakage and keeps the agent focused on the current test phase
• Provider auto-detection — Automatically identifies your LLM endpoint and configures the optimal transport
• Tool orchestration — Chains security tools intelligently based on findings, not fixed scripts

15+ LLM providers supported out of the box:

Provider	Models	Notes
Anthropic	Claude 4.5, Claude 4	Best performance with extended thinking
OpenAI	GPT-4.1, o3, o4-mini	Full tool-use support
Google	Gemini 2.5 Pro/Flash	Long context for large codebases
Amazon Bedrock	All Bedrock models	IAM auth, no API keys needed
Azure OpenAI	All Azure-hosted models	Enterprise deployments
Groq	LLaMA, Mixtral	Ultra-fast inference
Mistral	Mistral Large, Codestral	European data residency
DeepSeek	DeepSeek V3, R1	Cost-effective alternative
OpenRouter	100+ models	Single API, any model
Together AI	Open-source models	Fine-tuning support
Ollama	Any GGUF model	Fully offline, local-only
LM Studio	Any local model	Desktop GUI + API server
vLLM	Any HuggingFace model	Self-hosted, GPU-optimized
Any OpenAI-compatible	—	Custom endpoints welcome

Air-gapped environments? Run CyberStrike entirely offline with Ollama or LM Studio. No data leaves your machine — ever.

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What Makes It Different

Specialized Security Agents, Not Generic Chat CyberStrike ships with 13+ agents purpose-built for security domains. Each agent carries domain-specific methodology, tool knowledge, and testing patterns. The web-application agent follows OWASP WSTG. The cloud-security agent knows CIS benchmarks. The mobile agent uses Frida and follows MASTG/MASVS. They don't guess — they follow proven offensive security frameworks.

Intelligence Layer, Not Just an LLM Wrapper Most AI security tools are thin wrappers that send your prompt to an API. CyberStrike's intelligence layer normalizes outputs across 15+ providers, guards context between test phases, auto-detects your provider configuration, and orchestrates multi-step attack chains. The result: consistent, methodology-driven pentesting regardless of which model you use.

Any LLM, Zero Lock-in Anthropic, OpenAI, Google, Amazon Bedrock, Azure, Groq, Mistral, DeepSeek, OpenRouter, Together AI — or run fully offline with Ollama and LM Studio. You choose the model. You own the results. As AI models get better and cheaper, CyberStrike gets better with them. Switch providers in seconds without reconfiguring anything.

Remote Tool Execution with Bolt Your security tools don't have to run on your laptop. Deploy Bolt on one or many remote servers, pair with Ed25519 keys, and control everything from your local terminal. One CyberStrike instance can orchestrate dozens of Bolt servers — each with its own toolkit, network position, and attack surface access.

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Agents

Switch between agents with Tab. Each one is a domain specialist.

Agent	Focus	What It Does
cyberstrike	General	Full-access primary agent — reconnaissance, exploitation, reporting
web-application	Web	OWASP Top 10, WSTG methodology, API security, session testing
mobile-application	Mobile	Android/iOS, Frida/Objection, MASTG/MASVS compliance
cloud-security	Cloud	AWS, Azure, GCP — IAM misconfigs, CIS benchmarks, exposed resources
internal-network	Network	Active Directory, Kerberos attacks, lateral movement, pivoting

Plus 8 specialized proxy testers that run automatically on intercepted traffic:

Tester	What It Tests
IDOR	Object-level access control — can user A reach user B's resources?
Authorization Bypass	Vertical privilege escalation — can low-privilege users hit admin endpoints?
Mass Assignment	Unexpected writable fields — role, price, balance, userId in request bodies
Injection	SQL, command, LDAP, template injection across all input vectors
Authentication	Token validation, session fixation, credential exposure
Business Logic	Price manipulation, coupon reuse, race conditions, workflow bypass
SSRF	Internal host access via user-controlled URLs or redirect parameters
File Attacks	Path traversal, unrestricted upload, dangerous file types

Each tester uses a 3-gate confirmation protocol: execute a baseline request, execute the attack, compare responses. A finding is only reported when there is a measurable, reproducible difference — not on speculation. Duplicate findings (same endpoint + attack vector) are automatically suppressed across the session.

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HackBrowser

Full documentation: docs.cyberstrike.io/docs/tools/hacker-browser

HackBrowser is CyberStrike's built-in Chromium browser. Start it from the TUI with /hackbrowser. As you browse, every HTTP request is captured and routed through the proxy-agent pipeline — no manual export, no Burp project files.

Two capture modes:

• Manual — Browse the target yourself. Log in as different users, navigate features, trigger actions. HackBrowser captures the real API traffic behind every click.
• Autonomous — Provide credentials for multiple accounts, set a scope, and let HackBrowser crawl automatically. It logs in as each user, maps reachable pages, and captures the traffic difference between roles.

Role & credential discovery:

As you browse with multiple accounts, CyberStrike builds a session context — a live map of discovered credentials, inferred role hierarchy, and which endpoints each role can reach. The 8 proxy sub-testers use this context directly: they know which token to use for a high-privilege baseline and which lower-privilege credentials to test with, without any manual setup.

Browser traffic → Proxy intercept → Orchestrator → 8 sub-testers (parallel)
                                          ↓
                               Session context (credentials, roles,
                               endpoints, functions) shared across all testers

Scope control:

Use --scope to limit testing to specific domains. CyberStrike automatically derives the registered domain (e.g. --scope api.example.com covers api.example.com but not other.com). Pass multiple --scope flags for multi-domain targets.

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Web UI & Remote Access

CyberStrike includes a full web interface. Run cyberstrike web and control your agents, MCP servers, Bolt connections, and vulnerability findings from any browser.

Access from anywhere with Cloudflare Tunnel:

Browser ──HTTPS──▶ Cloudflare Tunnel ──encrypted──▶ cloudflared (localhost) ──▶ CyberStrike Server

export CYBERSTRIKE_SERVER_PASSWORD=your-secure-password
cyberstrike web
# In another terminal:
cloudflared tunnel --url http://localhost:4096 run your-tunnel

Why this is secure:

• Zero open ports — CyberStrike binds to localhost:4096. cloudflared makes an outbound-only connection to Cloudflare's edge. No firewall rules, no port forwarding needed.
• End-to-end encryption — Browser to Cloudflare edge is TLS. Cloudflare edge to your machine is an encrypted tunnel. No plaintext leaves your network.
• Password-protected API — Every API request requires Basic Auth. Local requests on localhost bypass auth for convenience; remote requests via CF tunnel always require credentials (detects X-Forwarded-For / CF-Connecting-IP).
• Your data stays local — LLM inference runs on your hardware. CyberStrike processes everything locally. The tunnel is just a secure pipe.

What's in the Web UI:

Tab	What It Does
Chat	Full conversation with all 13+ security agents
MCP	Live MCP server status, health, and tool counts
Bolt	Bolt remote server connection monitoring
Vulnerabilities	Discovered vulns with severity, PoC, and impact
Web Context	Endpoints, roles, credentials, and functions discovered during active sessions

app.cyberstrike.io is a hosted static page (no backend, no data storage) for convenience. Or self-host: clone the repo and serve packages/app/dist/ from your own domain.

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Bolt — Remote Tool Execution

Bolt is CyberStrike's remote tool server. Deploy it on any VPS, cloud instance, or Docker container — then control it from your local terminal over MCP protocol with Ed25519 authentication.

One CyberStrike, many Bolt servers:

                                          ┌─────────────────────┐
                                     ┌───►│  Bolt Server #1     │
                                     │    │  nmap, nuclei, ffuf  │
┌──────────────────┐   MCP + Ed25519 │    └─────────────────────┘
│  Your Terminal   │   over HTTPS    │    ┌─────────────────────┐
│  CyberStrike TUI │ ◄─────────────►├───►│  Bolt Server #2     │
│                  │   Tool Results   │    │  sqlmap, burp, zap   │
└──────────────────┘                 │    └─────────────────────┘
                                     │    ┌─────────────────────┐
                                     └───►│  Bolt Server #3     │
                                          │  Custom toolkit      │
                                          └─────────────────────┘

• Deploy anywhere — VPS, Docker, Kubernetes, or bare metal with pre-built Kali images
• Ed25519 key pairing — No passwords, no shared secrets, no attack surface
• Real-time streaming — Results flow back to your TUI as they happen
• Manage from TUI — Add, remove, and monitor Bolt servers without leaving CyberStrike
• Scale horizontally — Run heavy scans from servers with better bandwidth while you work locally

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MCP Ecosystem

CyberStrike connects to specialized MCP servers that extend its capabilities — 176+ security tools across 5 domains:

Server	Tools	What It Adds
cloud-audit-mcp	38	Cloud security audits — 60+ checks across AWS, Azure, GCP
github-security-mcp	39	GitHub security posture — repo, org, actions, secrets, supply chain
cve-mcp	23	CVE intelligence — NVD, EPSS, CISA KEV, GitHub Advisory, OSV
osint-mcp	37	OSINT recon — Shodan, VirusTotal, SecurityTrails, Censys, DNS, WHOIS

All open source. All installable with npx. Plug them into CyberStrike or use them standalone with any MCP-compatible client.

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Built-in Tools

CyberStrike agents have direct access to 30+ tools without any external dependencies:

Category	Tools
Execution	Shell (bash), file read/write/edit, directory listing
Discovery	Web fetch, web search, code search, glob, grep
Security	Vulnerability reporting (HackerOne format), evidence collection
Proxy	HTTP/HTTPS interception, request replay, session context sharing across sub-testers
Integration	MCP servers, Bolt remote tools, custom plugins

Plus a plugin SDK — build your own agents and tools, register them at runtime.

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Installation

# npm (recommended)
npm i -g @cyberstrike-io/cyberstrike@latest

# bun / pnpm / yarn
bun add -g @cyberstrike-io/cyberstrike@latest

# macOS (Homebrew)
brew install CyberStrikeus/tap/cyberstrike

# Windows (Scoop)
scoop install cyberstrike

# Linux / macOS (curl)
curl -fsSL https://cyberstrike.io/install | bash

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Who Is This For?

• Pentesters — Automate the repetitive parts. Let agents handle recon and initial testing while you focus on the creative attack chains that need human intuition.
• Bug Bounty Hunters — Faster reconnaissance, wider coverage, consistent methodology across programs. CyberStrike doesn't get tired at 3am.
• Security Teams — Run structured OWASP assessments with reproducible methodology. Get reports that map to standards your compliance team understands.
• Security Researchers — Extend CyberStrike with custom agents and MCP servers. The plugin system and MCP protocol make it a platform, not just a tool.

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Contributing

CyberStrike is built by the security community, for the security community. We welcome contributions across:

• Security agents and skills — New attack methodologies, testing patterns, vulnerability detection
• MCP servers — Connect new security tools and data sources
• Knowledge base — WSTG, MASTG, PTES, CIS methodology guides
• Core improvements — Performance, UX, provider integrations, bug fixes

Read the Contributing Guide before submitting a PR. All contributions must follow the project's ethical use policy — CyberStrike is for authorized security testing only.

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License

AGPL-3.0-only — Free for personal and open-source use. Commercial licensing available via contact@cyberstrike.io.

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MCP Security Suite

CyberStrike is the core platform. These MCP servers extend its capabilities:

Project	Domain	Tools
CyberStrike	Autonomous offensive security agent	13+ agents, 120+ OWASP test cases
cloud-audit-mcp	Cloud security (AWS/Azure/GCP)	38 tools, 60+ checks
github-security-mcp	GitHub security posture	39 tools, 45 checks
cve-mcp	Vulnerability intelligence	23 tools, 5 sources
osint-mcp	OSINT & reconnaissance	37 tools, 12 sources

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cyberstrike.io · Docs · Discord · X.com · GitHub

_{Built by hackers who got tired of copy-pasting between terminals.}