Promptfoo: Secure and Test Your AI Applications with Confidence

Promptfoo is an AI security and testing framework designed to help developers proactively identify and fix vulnerabilities in large language model (LLM) applications. Built for test-driven LLM development, Promptfoo offers a suite of tools for red teaming, guardrails, model security, and evaluations, enabling teams to ensure robustness, safety, and compliance. With support for major LLM providers and seamless integration into CI/CD pipelines, Promptfoo empowers developers and security teams to build trustworthy AI systems. It is used by 85 of the Fortune 500 companies and features a community-driven platform with real-time threat intelligence from over 200,000 users.

Key Features:

• Red Teaming: Automated adversarial testing to uncover vulnerabilities in LLM applications.
• Guardrails: Implementation of safety rules to prevent harmful outputs.
• Model Security: Comprehensive security testing for LLMs and related systems.
• Evaluations: Automated benchmarking and scoring of model performance across prompts and metrics.
• MCP Proxy: Integration with Model Context Protocol (MCP) frameworks.
• CI/CD Integration: Seamless use in GitHub, GitLab, Jenkins, and other development workflows.
• Open-Source CLI & Library: Developer-friendly tools that run locally and support test-driven development.
• Support for Multiple LLMs: Compatible with OpenAI, Anthropic, Azure, Google, HuggingFace, Llama, and custom APIs.
• Real-Time Threat Intelligence: Community-driven insights from over 200,000 users.
• Local Execution: No PII is collected; data and API keys remain on the user's machine.
• Collaboration Tools: Web viewer for sharing results and team collaboration.
• On-Premise Deployment: Complete data isolation and dedicated support for enterprise needs.
• Anonymous Telemetry: Optional data collection with full user control.

Pricing: Promptfoo offers a free Community plan with core features like LLM evaluation, red teaming (10k probes/month), and vulnerability scanning. Enterprise plans include advanced capabilities such as continuous monitoring, team collaboration, SSO, API access, and professional support, with custom pricing available.

Conclusion: Promptfoo is a powerful, developer-centric AI security tool that combines open-source flexibility with enterprise-grade features. Its focus on local execution, privacy, and real-time threat intelligence makes it an essential solution for teams committed to building secure and reliable AI applications.