Promptfoo

Promptfoo is an automated AI security testing platform that helps organizations identify and fix vulnerabilities in AI applications throughout the development lifecycle. It provides tools for red teaming, evaluations, code scanning, model security, guardrails, and MCP proxy. The platform simulates real users to uncover application-specific vulnerabilities such as prompt injections, jailbreaks, data leaks, business rule violations, and insecure tool use. It integrates directly into CI/CD pipelines and developer workflows, delivering remediation guidance in pull requests. Built on a community of over 300,000 open source users and 279+ contributors, Promptfoo offers real-time threat intelligence and automated attack generation that scales beyond manual testing. Trusted by 156 Fortune 500 companies, including teams at OpenAI and Anthropic, Promptfoo is designed for CISOs, security directors, and developers who need to secure AI applications at enterprise scale. The platform is now part of OpenAI.

Key Benefits

• Automated red teaming that scales with context-aware attacks
• Integrates into CI/CD pipelines and developer workflows
• Real-time threat intelligence from a community of 300k+ users
• Used by 156 Fortune 500 companies