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SigNoz
Open-source OpenTelemetry APM that handles LLM observability via standard OTel instrumentation rather than an LLM-specific SDK.
| 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; cloud from $49/mo usage-based |
| Framework integrations | opentelemetry, openai-sdk, langchain |
| Funding / ownership | YC W21; $6.5M seed |
| GitHub stars | 27,319 |
| Maintenance | active (commit 2026-06-12) |
| License (GitHub) | not detected |
| Open issues | 1498 |
| Maturity signal | 90/100 (Mature) — computed from public GitHub signals, see methodology |
Pricing/feature source: https://signoz.io/pricing/
Maturity signal is computed from public GitHub data only. How it is calculated.
Frequently asked questions
Is SigNoz open source?
Yes.
Can I self-host SigNoz?
Yes — SigNoz can run in your own infrastructure.
Is SigNoz OpenTelemetry-native?
Yes — SigNoz speaks OpenTelemetry (OTLP) natively, so there is no proprietary-SDK lock-in.
How much does SigNoz cost?
Freemium. OSS self-host free; cloud from $49/mo usage-based