MLflow Tracing

MLflow Tracing is ranked #19 of 32 in AI agent observability tools on The Geeks Club. It runs on API, Self-hosted, Web. There is a free plan.

MLflow Tracing plans and pricing

All plans

MLflow Tracing Free Open source · trace data hosted on your own infrastructure mlflow.org · 30 Sept 2026

Compared on AI agent observability tools

Free plan: Yes
Session replay: Yes
Prompt and tool tracing: Yes
Deployment options: hybrid
Agent framework support: open_standard
Cost tracking: Yes

Best MLflow Tracing alternatives

See all 12

7.9 W&B Weave Free plan

7.8 SigNoz Free plan

7.7 Opik Free plan

7.7 Traccia Free plan

7.7 VoltOps Free plan

7.6 Helicone Free plan

MLflow Tracing

Purpose: MLflow Tracing captures inputs, outputs, and metadata from each step of LLM application and agent requests to help diagnose bugs and unexpected behavior.
Trace views: Trace details include a span tree, per-span latency, inputs and outputs, tool calls, exception details, token counts, cost breakdown, feedback, and ground-truth annotations.
Automatic tracing: The integrations page lists automatic tracing for more than 40 LLM and AI agent libraries and frameworks.
Integrations: Listed integrations include OpenTelemetry, OpenAI, Anthropic, LangChain, LangGraph, LlamaIndex, DSPy, Vercel AI, and other frameworks, providers, gateways, and tools.
Manual instrumentation: The Python and TypeScript SDKs provide manual tracing APIs, and the Python SDK supports synchronous and asynchronous functions with the documented version requirements.
Production use: The documentation describes tracing as production-ready and recommends asynchronous logging and sampling for production deployments.
Lightweight SDK: The production tracing package, `mlflow-tracing`, is documented as having a 95% smaller footprint than the full `mlflow` package.
OpenTelemetry: MLflow Tracing is OpenTelemetry-compatible and supports GenAI Semantic Conventions for trace export and ingestion.
Sensitive data: Custom span processors can mask sensitive data on the client before spans are sent to the backend.
Server security: MLflow 3.5.0 and later include middleware for DNS rebinding, CORS, and clickjacking protections; the server documentation recommends a reverse proxy or VPN for TLS and authentication in production.
OTLP ingestion limit: OpenTelemetry trace ingestion requires MLflow 3.6.0 or later and a SQL-based backend store.
Browser limitation: The TypeScript SDK works in Node.js backend environments and is not compatible with frontend browser or Edge Runtime environments.
Maker and community: The MLflow site describes the project as backed by the Linux Foundation and committed to open source for more than five years.
Price from: Free

Visit site Alternatives

Where it ranks on The Geeks Club

Best AI Agent Observability Tools in 2026#19 of 32
Best AI LLM Observability Tools in 2026#14 of 23

Is MLflow Tracing yours?

Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.

Claim it free Promote MLflow Tracing

Sources

mlflow.org/docs/latest/llms/tracing/· checked 30 Sept 2026
mlflow.org/docs/latest/genai/tracing/observe-with-· checked 30 Sept 2026
mlflow.org/docs/latest/genai/tracing/integrations· checked 30 Sept 2026
mlflow.org/docs/latest/genai/tracing/app-instrumen· checked 30 Sept 2026
mlflow.org/docs/latest/tracing/production· checked 30 Sept 2026
mlflow.org/docs/latest/genai/tracing/observe-with-· checked 30 Sept 2026
mlflow.org/docs/latest/self-hosting/architecture/t· checked 30 Sept 2026
mlflow.org/docs/latest/genai/tracing/opentelemetry· checked 30 Sept 2026
mlflow.org/docs/latest/genai/tracing/faq/· checked 30 Sept 2026
mlflow.org· checked 30 Sept 2026