OpenLIT
OpenTelemetry-native open-source platform covering LLM tracing, GPU monitoring, guardrails and a prompt vault with one-line auto-instrumentation of 50+ providers.
| Category | Observability & Tracing |
| Open source | Yes |
| Self-hostable | Yes |
| Pricing model | free |
| Pricing notes | Apache-2.0, fully free self-hosted; no managed cloud tier |
| Framework integrations | opentelemetry, openai-sdk, anthropic, langchain, llamaindex, ollama |
| Funding / ownership | — |
Pricing/feature source: https://github.com/openlit/openlit