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Lunary

Build AI agents with confidence

Paid·All audiences·API available

Key strengths

LLM observability and tracingAgent monitoring and error trackingPrompt management and versioningPII masking and security (SOC 2 Type II, ISO 27001)Self-hosting support (Kubernetes/Docker)Analytics and cost trackingHuman reviews and feedback tracking
Paid only · from $20 USD/mo
Self-hostable
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  • LLM observability and tracing: Instrument LLM calls and agent workflows to capture full execution traces, latency, and token usage across your pipeline.\n- Agent error tracking: Monitor multi-step agent runs for failures and unexpected behaviors in production.\n- Prompt management and versioning: Store, version, and deploy prompts programmatically via the API or SDK, enabling controlled iteration.\n- Cost tracking and analytics: Aggregate event-level data to analyze spend and usage patterns across models and projects.\n- PII masking: Automatically redact sensitive data from traces before storage, supporting compliance with internal data-handling policies.\n- Self-hosted deployment: Deploy on Kubernetes or Docker for air-gapped or data-residency-constrained environments.\n- Human review pipelines: Route LLM outputs to human reviewers and capture structured feedback for evaluation and fine-tuning workflows.