LangWatch
Turns unpredictable AI agents into reliable production systems with simulations, evaluations, observability, and governance. Trusted by enterprises like Backbase, Deloitte, and Visma.
LangWatch is an open-source alternative to:
LangWatch
AI agent testing and evaluation platform that transforms unpredictable agents into reliable production systems. LangWatch provides simulations, evaluations, observability, and governance to ensure your AI agents perform consistently before and after deployment.
Key Features
- Agentic AI Testing: Run realistic user scenarios against your agent to catch issues before production
- LLM Evaluation: Measure response quality and accuracy to ship agents that hold up in production
- LLM Observability: Trace every agent step and monitor cost and latency with full production visibility
- AI Governance: Govern every model, key, and tool with virtual keys, budgets, routing policies, and audit trails
- Prompt Management: Version, deploy, and A/B test prompts as code with full history and GitHub sync
- Voice AI Testing: Simulate and test voice AI agents at scale before customer interactions
- LLM Red-teaming: Uncover safety and security gaps through simulated attacks
- Spec-driven Testing: Automatically turn requirements into agent tests for continuous improvement
- Self-improving Loops: Set up automated agent improvement cycles based on production traces
- CI/CD Integration: Run scenarios locally and in CI pipelines with no separate setup
Tech / Self-Hosting
LangWatch is open source and can be self-hosted in 15 minutes. The platform supports local development, CI/CD integration, and enterprise-grade deployment options. Documentation is available at docs.langwatch.ai.
Technologies include:
- TypeScript/JavaScript for core platform
- PostgreSQL for data storage
- Redis for caching and real-time features
- Docker for containerization
- Kubernetes for orchestration (enterprise deployments)
Self-hosting is supported via Docker Compose and Kubernetes Helm charts. Enterprise features include advanced security, SSO, and dedicated support.