CyberStrike
An open-source offensive security agent for automated pentests that runs on your existing Claude Code or OpenAI subscription.

About CyberStrike
CyberStrike is an open-source AI agent built for offensive security: automated penetration testing from your terminal, with specialised agents, thousands of security skills and OWASP test cases. Its intelligence layer sits on top of the AI subscription you already have, so a Claude Code or OpenAI plan powers the whole pentest toolkit without separate API costs.
Can you use your ChatGPT plan in CyberStrike?
Yes. Your OpenAI (ChatGPT) subscription. CyberStrike's own page says: "Already have a Claude Code or OpenAI subscription? CyberStrike's intelligence layer sits on top of your existing AI subscription."
How to connect your plan
Claude Pro or Max
- Install CyberStrike (
npm install -g @cyberstrike-io/cyberstrike@latest). - Run
cyberstrike auth loginand select Anthropic. - Choose "Claude Pro/Max (browser)", authorize in your browser, then paste the code shown.
ChatGPT Plus or Pro
- Install CyberStrike (
npm install -g @cyberstrike-io/cyberstrike@latest). - Run
cyberstrike auth loginand select "OpenAI (ChatGPT Plus/Pro or API key)". - Choose "ChatGPT Pro/Plus (browser)" and sign in with ChatGPT.


