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Langtrace
OpenTelemetry-native open-source tracing and metrics for LLM apps and agent frameworks, with a managed cloud option.
| Category | Observability & Tracing |
| OpenTelemetry-native | Yes — no proprietary-SDK lock-in |
| 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 |
| GitHub stars | 1,205 |
| Maintenance | slow (2025-11-17) |
| License (GitHub) | AGPL-3.0 |
| Open issues | 1 |
| Maturity signal | 58/100 (Growing) — computed from public GitHub signals, see methodology |
Pricing/feature source: https://docs.langtrace.ai
Maturity signal is computed from public GitHub data only. How it is calculated.
Frequently asked questions
Is Langtrace open source?
Yes. Licensed under AGPL-3.0.
Can I self-host Langtrace?
Yes — Langtrace can run in your own infrastructure.
Is Langtrace OpenTelemetry-native?
Yes — Langtrace speaks OpenTelemetry (OTLP) natively, so there is no proprietary-SDK lock-in.
How much does Langtrace cost?
Freemium. OSS self-host free; managed cloud with free + paid tiers