Langtrace
OpenTelemetry-native open-source tracing and metrics for LLM apps and agent frameworks, with a managed cloud option.
| Category | Observability & Tracing |
| Open source | Yes |
| Self-hostable | Yes |
| Pricing model | freemium |
| Pricing notes | OSS self-host free; managed cloud with free + paid tiers |
| Framework integrations | opentelemetry, openai-sdk, anthropic, langchain, crewai |
| Funding / ownership | Built by Scale3 Labs |
Pricing/feature source: https://www.langtrace.ai