Hierarchical Trace Capture
Record nested LLM calls, tool invocations, and retrieval steps for each user session and request.
Sources: https://langfuse.com
Langfuse
Category: Agentic AI Orchestration
Company: Clickhouse, Inc.
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Langfuse provides an observability and testing platform for agentic AI applications. It serves B2B organizations of all sizes, offering centralized logging, metrics, and replayable test suites to monitor and debug autonomous agents.
Target Market: B2B
Key Features
AI-generated feature reference from web research · Generated 2026-09-27; citations identify available source support and do not independently verify every claim.
Prompt Management & Rollbacks
Store, version, deploy, and rollback prompts separately from code with one-click deployments.
Sources: https://langfuse.com
Integrated Evaluation Framework
Run automated and human-in-the-loop evaluators on production or experimental datasets to score outputs.
Sources: https://langfuse.com
Experimentation & A/B Comparison
Define test cases, run experiments, and compare model or prompt variants side-by-side on real inputs.
Sources: https://langfuse.com
Observability Dashboards & Alerts
Monitor cost, latency, and quality with dashboards, filters, and automated alerts by custom metadata.
Sources: https://langfuse.com
Open Instrumentation & SDKs
Support OTel-based instrumentation plus native SDKs for Python, TypeScript, Go, Java, .NET and more.
Sources: https://langfuse.com
Extensive Integrations Ecosystem
Connect to 100+ integrations including LangChain, Vercel SDK, model providers, and agent frameworks.
Sources: https://langfuse.com
APIs, Exports, & Self-Hosting
Provide REST APIs, query SDKs, S3 exports, and self-hosted deployments via Docker, Helm, and Terraform.
Sources: https://langfuse.com
Human Annotation Workflows
Collaborative interfaces for reviewers to label traces and create golden datasets for training and evals.
Sources: https://langfuse.com
In-app Assistant & IDE Tooling
Automate investigations and take approved actions from the app or IDE via CLI, SKILL.md, and MCP integrations.
Sources: https://langfuse.com
Website: https://langfuse.com
Frequently asked questions
What is Langfuse?
Langfuse provides an observability and testing platform for agentic AI applications. It serves B2B organizations of all sizes, offering centralized logging, metrics, and replayable test suites to monitor and debug autonomous agents.
What is Langfuse known for?
Langfuse is best known for end-to-end LLM request and toolchain tracing with OpenTelemetry-compatible traces, granular prompt versioning, management, and comparative evaluation metrics for experiments and developer-focused observability dashboard combining traces, generation metadata, and failure analytics. Its strongest capability coverage is in Governance, Security & Monitoring and Secure Tool & API Integration.
Who is Langfuse for?
Langfuse primarily serves B2B organizations.
Who makes Langfuse?
Langfuse is owned and operated by Clickhouse, Inc.. See the company profile for leadership, milestones, and acquisitions.
How is Langfuse evaluated?
Langfuse is assessed across four dimensions — Innovation Index (30%), Organizational Strength (20%), Customer Mix (20%), and Vision Index (30%) — using documented evidence that is refreshed monthly. See the methodology page for the full scoring rules.
What are alternatives to Langfuse?
The alternatives page lists sibling platforms in the Agentic AI Orchestration category alongside Langfuse, each with a full profile and side-by-side capability comparison so you can weigh the trade-offs for your use case.