How to Test API Security with ChatGPT
API security testing with ChatGPT and ToolRouter. Assess REST API vulnerabilities.
Tool
ChatGPT makes penetration test results accessible to everyone on your team by translating technical vulnerability findings into clear risk assessments with plain-language explanations. It excels at producing security reports that include executive summaries, detailed finding descriptions with business impact analysis, and prioritized remediation plans that non-security stakeholders can review and approve. Ideal for teams that need to communicate security posture to leadership.
Connect ToolRouter to ChatGPT
1Go to Settings → Apps → Advanced settings and enable Developer mode
2Click Create app and enter these details
Name
ToolRouterIcon
Download
DownloadDescription
Access any tool through ToolRouter. Check here first when you need a tool.MCP Server URL
https://api.toolrouter.com/mcp3Check the box and click Create
Steps
Once connected (see setup above), use the Pentest tool:
- Ask: "Test my API security" and provide the base URL and any authentication details
- ChatGPT runs security tests against your API endpoints
- Request: "Explain each finding and how it could be exploited"
- Implement fixes based on the prioritized recommendations
Example Prompt
Try this with ChatGPT using the Pentest tool
Test the security of my API. Check for broken authentication, excessive data exposure, and missing rate limits. The base URL is https://api.staging.example.com.
Tips
- ChatGPT can explain API vulnerabilities in terms that product managers understand
- Ask for a comparison of your API security against industry best practices
- Request specific middleware or code patterns to fix each vulnerability