Best open-source observability tools in 2025

Open-source observability for AI agents' performance and security.
Free
+ from $31/m
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AI monitoring metrics
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API observability
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Analyze latency
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Curate datasets
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Developer accessibility
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Enhance security
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Enterprise-grade security
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Evaluate model accuracy
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Latency evaluation
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Latency tracking
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Monitor token usage
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Open-source evaluation
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Version control for prompts