opentelemetry-rust
opentelemetry-rust is the official Rust implementation of OpenTelemetry, a standardized toolkit for collecting and exporting telemetry data (traces, metrics, logs) from applications. It provides APIs and SDKs to instrument Rust code and send observability data to backends like Jaeger, Prometheus, or vendor-specific collectors.
Key facts
Objective fields from the source. Values we can't verify are shown as “Unknown” rather than guessed.
| Field | Value |
|---|---|
| Repository | open-telemetry/opentelemetry-rust |
| Owner | open-telemetry |
| Primary language | Rust |
| License | Apache-2.0 — OSI-approved |
| Stars | 2.6k |
| Forks | 675 |
| Open issues | 266 |
| Latest release | opentelemetry-semantic-conventions-0.32.1 (2026-06-26) |
| Last updated | 2026-07-07 |
| Source | https://github.com/open-telemetry/opentelemetry-rust |
What opentelemetry-rust is
Multi-signal observability framework offering stable Logs and Metrics APIs/SDKs with RC-level OTLP exporters, beta Traces components, and support for distributed context propagation. Built on Rust 1.75+ with modular crate architecture (opentelemetry, opentelemetry-sdk, opentelemetry-otlp, exporters) and bridges to tracing and log crates.
Get the opentelemetry-rust source
Clone the repository and explore it locally.
git clone https://github.com/open-telemetry/opentelemetry-rust.gitcd opentelemetry-rust# follow the project's README for install & configurationNeed it deployed, integrated, or customized instead? DEV.co ships production installs.
Best use cases
Implementation considerations
- Choose appropriate stability level: Logs and Metrics APIs/SDKs are stable; Traces remain beta. Beta components may have breaking changes in minor versions.
- Select exporter based on backend: OTLP (production-recommended), Prometheus (metrics), stdout (debug), or contrib crates for vendor-specific endpoints.
- Integrate with existing logging: Use opentelemetry-appender-tracing to bridge tracing logs or opentelemetry-appender-log to bridge log crate logs into OTel.
- Configure sampling strategies to control cardinality and overhead; understand how context propagation interacts with async Rust code and task spawning.
- Review VERSIONING.md for stability guarantees; subscribe to CNCF Slack (#otel/rust) for breaking changes and updates.
When to avoid it — and what to weigh
- Simple single-service logging needs — If you only need traditional logging without distributed tracing or metrics collection, the opentelemetry overhead is unnecessary; use tracing or log crates directly.
- Traces API/SDK stability critical — Traces-API and Traces-SDK remain at beta status; if stable trace guarantees are required for production, wait for stable release or evaluate mature alternatives.
- Non-standard observability backends — If your backend does not support OTLP or vendor-specific exporters listed in the OTel Registry, you may need to write custom exporters.
- Real-time performance-sensitive hot paths — Telemetry instrumentation adds overhead; benchmark carefully in latency-critical paths and use sampling strategies to minimize impact.
License & commercial use
Licensed under Apache License 2.0 (Apache-2.0), a permissive OSI-approved license compatible with most commercial and open-source projects.
Apache-2.0 permits commercial use, modification, and distribution with proper attribution and no warranty claims. Review Apache-2.0 terms directly; consult legal counsel if combining with copyleft dependencies or if license compliance audit is required.
DEV.co evaluation signals
Editorial assessment — not user reviews. Directional, with an explicit confidence level.
| Signal | Assessment |
|---|---|
| Maintenance | Active |
| Documentation | Strong |
| License clarity | Clear |
| Deployment complexity | Moderate |
| DEV.co fit | Strong |
| Assessment confidence | High |
Apache-2.0 licensed with OpenSSF Scorecard and Best Practices badges indicating security development workflow. FOSSA status badges present for license and security scanning. No zero-day disclosures stated. Telemetry data export carries data privacy implications—ensure OTLP endpoint uses TLS and sanitize sensitive attributes before export. Review exporter configuration for credential handling (API keys, mTLS certs).
Alternatives to consider
Jaeger Rust client
Focuses on tracing only; does not provide metrics or logs; less flexible for multi-signal observability.
Prometheus Rust client
Metrics-only library; no trace or log support; requires custom integration for full observability.
Datadog APM (agent-based)
Vendor-locked, closed-source; no vendor-agnostic setup; exporter integration possible but less flexible than OTel.
Build on opentelemetry-rust with DEV.co software developers
Start with the getting-started examples for logs, metrics, or traces. Deploy to your preferred backend (Jaeger, Prometheus, OTel Collector) and gain unified visibility into your Rust applications.
Talk to DEV.coRelated open-source tools
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opentelemetry-rust FAQ
Is opentelemetry-rust production-ready?
Do I need to run an OpenTelemetry Collector?
How does OpenTelemetry interact with my existing tracing or log crate?
What is the performance overhead?
Work with a software development agency
From first prototype to production, DEV.co delivers software development services around tools like opentelemetry-rust. Our software development agency staffs experienced software developers and web developers for custom software development, web development, integrations, and ongoing support across open-source observability and beyond.
Ready to Add Observability to Your Rust Services?
Start with the getting-started examples for logs, metrics, or traces. Deploy to your preferred backend (Jaeger, Prometheus, OTel Collector) and gain unified visibility into your Rust applications.