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CyberStrike – open-source AI harness for offensive security (AGPL)

CyberStrike, an open-source AI harness for offensive security released under AGPL, turns any LLM subscription into an autonomous red team agent with 13+ specialized agents, 7,600+ security skills, and 120+ OWASP test cases. The tool supports 150+ AI providers and 5,300+ models, and includes 56+ built-in tools and 176+ MCP tools. It is available via npm and offers a terminal TUI, with documentation at docs.cyberstrike.io.

read12 min views4 publishedAug 22, 2026
CyberStrike – open-source AI harness for offensive security (AGPL)
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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, 7,600+ security skills, and 120+ OWASP test cases.

150+ AI providers5,300+ models56+ built-in tools176+ MCP tools

Quick StartIntelligence LayerWhat Makes It DifferentAgentsSkillsWeb UIBoltMCP EcosystemPost-ExploitationInstallationDocsWebsite

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

for demos and guides.

cyberstrike.ioCyberStrike 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

150+ AI providers and 5,300+ models supported out of the box:

CyberStrike integrates with the entire AI ecosystem through 23 bundled SDK providers and 150+ providers via the models.dev catalog. Here are the core integrations:

Provider Models Notes
Anthropic
Claude 4.5, Claude 4 Best performance with extended thinking
OpenAI
GPT-5, GPT-4.1, o3, o4 Full tool-use + reasoning 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
Google Vertex AI
Gemini + Claude on GCP Regional endpoints (EU/US)
GitHub Copilot
GPT-5, Claude, Gemini Use your existing Copilot subscription
xAI
Grok 3, Grok 3 Mini Real-time data access
Groq
LLaMA, Mixtral Ultra-fast inference
Mistral
Mistral Large, Codestral European data residency
DeepSeek
DeepSeek V3, R1 Cost-effective alternative
Cerebras
LLaMA on Cerebras Fastest inference available
Cohere
Command R+ RAG-optimized models
OpenRouter
300+ models Single API, any model
Together AI
Open-source models Fine-tuning support
DeepInfra
Open-source models Pay-per-token, no GPU needed
Perplexity
Sonar models Search-augmented generation
Alibaba Cloud
Qwen, Kimi, DashScope Chinese model ecosystem
Cloudflare AI Gateway
Any provider via gateway Caching, rate limiting, analytics
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.

| 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. | Most AI security tools are thin wrappers that send your prompt to an API. CyberStrike's intelligence layer normalizes outputs across 150+ providers and 5,300+ models, 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. | | Anthropic, OpenAI, Google, Amazon Bedrock, Azure, Groq, Mistral, xAI, DeepSeek, Cerebras, Cohere, OpenRouter, Together AI, GitHub Copilot — or run fully offline with Ollama and LM Studio. 150+ providers, 5,300+ models. 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. | 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. |

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.

CyberStrike ships with 7,600+ security skill files — structured, Ed25519-signed methodology documents that give agents deep domain knowledge at runtime. Skills are lazy-loaded (one at a time, on demand) and statically injected into agent prompts.

Skill categories:

Category Skills What They Cover
Attack Methodologies
19 JWT attacks, SSRF, SSTI, race conditions, request smuggling, cache poisoning, CORS, GraphQL, prototype pollution, XXE, WebSocket, subdomain takeover, host header injection, open redirect
Post-Exploitation
5 AWS, Azure, Kubernetes, Windows, macOS privilege escalation and persistence
Compliance Frameworks
3 CIS Benchmarks (AWS/Azure/GCP/K8s), NIST Framework, MITRE ATT&CK (Enterprise, Mobile, ICS)
Domain Knowledge
8+ Active Directory security, web security patterns, recon methodology, CI/CD attacks, Kerberos attacks, eBPF techniques

Each skill includes testing procedures, payloads, tool commands, and CWE mappings. Skills are tagged with OWASP WSTG IDs, CIS control IDs, and chain relationships — so agents know which skills to combine for multi-step attack chains.

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.

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
cloudflared tunnel --url http://localhost:4096 run your-tunnel

Why this is secure:

Zero open ports— CyberStrike binds tolocalhost: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 onlocalhost

bypass auth for convenience; remote requests via CF tunnel always require credentials (detectsX-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.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

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

Server Tools What It Adds

github-security-mcpcve-mcposint-mcpAll open source. All installable with npx

. Plug them into CyberStrike or use them standalone with any MCP-compatible client.

CyberStrike agents have direct access to 56+ tools without any external dependencies:

Category Tools
Execution
Shell (bash), file read/write/edit/patch, directory listing, batch operations
Discovery
Web fetch, web search, code search, glob, grep, intel gathering
Offensive
HackBrowser, attack script execution, vulnerability reporting & triage
Post-Exploitation
AWS hook, Azure hook, Kubernetes hook, Windows hook, macOS hook, CI/CD pipe, eBPF
Web Context
Session context, endpoint/role/credential/function discovery and management
Proxy
HTTP/HTTPS interception, request replay, session context sharing across sub-testers
Reporting
Professional report generation, coverage notes, methodology tracking, VRT checks
Integration
MCP servers, Bolt remote tools, custom plugins, LSP

Plus a plugin SDK with 15+ hook types (tool interception, message transformation, permission prompts, shell environment) — build your own agents and tools, register them at runtime.

CyberStrike includes built-in post-exploitation capabilities across multiple platforms — no external tools required.

Platform Capabilities
macOS
Chrome credential extraction, Keychain dumping, keylogging, TCC bypass, GateKeeper bypass, XProtect checks, SSH key extraction, DTrace system tracing
Windows
Post-exploitation hooks for privilege escalation and persistence
Linux/eBPF
29 kernel-level scripts — process execution monitoring, SSL/TLS sniffing, keystroke logging, namespace manipulation detection, rootkit detection, process/file/connection hiding
AWS
IAM enumeration, S3 exposure, Lambda backdoors, CloudTrail evasion
Azure
Identity enumeration, storage exposure, function exploitation
Kubernetes
Pod escape, service account abuse, secret extraction, RBAC exploitation
CI/CD
Pipeline injection, secret extraction, build artifact manipulation

All post-exploitation tools are agent-driven — they execute based on context and findings, not as fixed scripts.

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

bun add -g @cyberstrike-io/cyberstrike@latest

brew install CyberStrikeus/tap/cyberstrike

scoop install cyberstrike

curl -fsSL https://cyberstrike.io/install.sh | bash

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.

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.

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

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

Project Domain Tools
CyberStrike
Autonomous offensive security agent
13+ agents, 56+ tools, 7,600+ skills, 150+ AI providers

github-security-mcpcve-mcposint-mcp cyberstrike.io ·

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Docs·

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GitHub Built by hackers who got tired of copy-pasting between terminals.

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