Grafana
Open observability — dashboards for metrics, logs, and traces.
AGPL-3.0 platform with 100+ data source integrations, multi-condition alerting, plugin marketplace, and Dashboard as Code. Self-host or Grafana Cloud.
monitoringanalyticsdashboards
74.1K14KAGPL-3.0
vs Datadog
Helicone
LLM observability and AI gateway — one-line integration for logging, cost tracking, prompt management, and rate limiting
Build reliable AI apps with comprehensive observability
aillmobservability
5.8K592Apache-2.0
vs LangSmith
Laminar
Agent observability and evaluation platform — signal alerts, trace debugging, and automated evals for LLM products
AI-powered platform for engineering LLM products
aillmobservability
3K203Apache-2.0
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OpenLIT
OpenTelemetry-native LLM observability — tracing, evaluation, prompt management, and cost tracking
Monitor, debug, and scale LLM applications with ease
aillmobservability
2.5K288Apache-2.0
vs Datadog