Langfuse's 147-line llms.txt shows what thorough AI preparation looks like

# Langfuse

> Langfuse is an **open-source LLM engineering platform** ([GitHub](https://github.com/langfuse/langfuse)) that helps teams collaboratively debug, analyze, and iterate on their LLM applications. All platform features are natively integrated to accelerate the development workflow.

## Langfuse Docs MCP Server

Connect to the Langfuse Docs MCP server to access documentation directly in your AI editor:

- **Endpoint**: `https://langfuse.com/api/mcp`
- **Transport**: `streamableHttp`
- **Documentation**: [Langfuse Docs MCP Server](https://langfuse.com/docs/docs-mcp)

The MCP server provides tools to search Langfuse documentation, GitHub issues, and discussions. See the [installation guide](https://langfuse.com/docs/docs-mcp) for setup instructions in Cursor, VS Code, Claude Desktop, and other MCP clients.

## Docs

- [Docs](https://langfuse.com/docs.md)
- [Audit Logs](https://langfuse.com/docs/administration/audit-logs.md)
- [Authentication And Sso](https://langfuse.com/docs/administration/authentication-and-sso.md)
- [Billable Units](https://langfuse.com/docs/administration/billable-units.md)
- [Data Deletion](https://langfuse.com/docs/administration/data-deletion.md)
- [Data Retention](https://langfuse.com/docs/administration/data-retention.md)
- [Llm Connection](https://langfuse.com/docs/administration/llm-connection.md)
- [Rbac](https://langfuse.com/docs/administration/rbac.md)
- [Scim And Org Api](https://langfuse.com/docs/administration/scim-and-org-api.md)
- [Spend Alerts](https://langfuse.com/docs/administration/spend-alerts.md)
- [Troubleshooting And Faq](https://langfuse.com/docs/administration/troubleshooting-and-faq.md)
- [Export From Ui](https://langfuse.com/docs/api-and-data-platform/features/export-from-ui.md)
- [Export To Blob Storage](https://langfuse.com/docs/api-and-data-platform/features/export-to-blob-storage.md)
- [Mcp Server](https://langfuse.com/docs/api-and-data-platform/features/mcp-server.md)
- [Observations Api](https://langfuse.com/docs/api-and-data-platform/features/observations-api.md)
- [Public Api](https://langfuse.com/docs/api-and-data-platform/features/public-api.md)
- [Query Via Sdk](https://langfuse.com/docs/api-and-data-platform/features/query-via-sdk.md)
- [Overview](https://langfuse.com/docs/api-and-data-platform/overview.md)
- [Ask Ai](https://langfuse.com/docs/ask-ai.md)
- [Demo](https://langfuse.com/docs/demo.md)
- [Docs Mcp](https://langfuse.com/docs/docs-mcp.md)
- [Core Concepts](https://langfuse.com/docs/evaluation/core-concepts.md)
- [Annotation Queues](https://langfuse.com/docs/evaluation/evaluation-methods/annotation-queues.md)
- [Llm As A Judge](https://langfuse.com/docs/evaluation/evaluation-methods/llm-as-a-judge.md)
- [Score Analytics](https://langfuse.com/docs/evaluation/evaluation-methods/score-analytics.md)
- [Scores Via Sdk](https://langfuse.com/docs/evaluation/evaluation-methods/scores-via-sdk.md)
- [Scores Via Ui](https://langfuse.com/docs/evaluation/evaluation-methods/scores-via-ui.md)
- [Data Model](https://langfuse.com/docs/evaluation/experiments/data-model.md)
- [Datasets](https://langfuse.com/docs/evaluation/experiments/datasets.md)
- [Experiments Via Sdk](https://langfuse.com/docs/evaluation/experiments/experiments-via-sdk.md)
- [Experiments Via Ui](https://langfuse.com/docs/evaluation/experiments/experiments-via-ui.md)
- [Overview](https://langfuse.com/docs/evaluation/overview.md)
- [Troubleshooting And Faq](https://langfuse.com/docs/evaluation/troubleshooting-and-faq.md)
- [Custom Dashboards](https://langfuse.com/docs/metrics/features/custom-dashboards.md)
- [Metrics Api](https://langfuse.com/docs/metrics/features/metrics-api.md)
- [Overview](https://langfuse.com/docs/metrics/overview.md)
- [Data Model](https://langfuse.com/docs/observability/data-model.md)
- [Agent Graphs](https://langfuse.com/docs/observability/features/agent-graphs.md)
- [Comments](https://langfuse.com/docs/observability/features/comments.md)
- [Corrections](https://langfuse.com/docs/observability/features/corrections.md)
- [Environments](https://langfuse.com/docs/observability/features/environments.md)
- [Log Levels](https://langfuse.com/docs/observability/features/log-levels.md)
- [Masking](https://langfuse.com/docs/observability/features/masking.md)
- [Mcp Tracing](https://langfuse.com/docs/observability/features/mcp-tracing.md)
- [Metadata](https://langfuse.com/docs/observability/features/metadata.md)
- [Multi Modality](https://langfuse.com/docs/observability/features/multi-modality.md)
- [Observation Types](https://langfuse.com/docs/observability/features/observation-types.md)
- [Queuing Batching](https://langfuse.com/docs/observability/features/queuing-batching.md)
- [Releases And Versioning](https://langfuse.com/docs/observability/features/releases-and-versioning.md)
- [Sampling](https://langfuse.com/docs/observability/features/sampling.md)
- [Sessions](https://langfuse.com/docs/observability/features/sessions.md)
- [Tags](https://langfuse.com/docs/observability/features/tags.md)
- [Token And Cost Tracking](https://langfuse.com/docs/observability/features/token-and-cost-tracking.md)
- [Trace Ids And Distributed Tracing](https://langfuse.com/docs/observability/features/trace-ids-and-distributed-tracing.md)
- [Url](https://langfuse.com/docs/observability/features/url.md)
- [User Feedback](https://langfuse.com/docs/observability/features/user-feedback.md)
- [Users](https://langfuse.com/docs/observability/features/users.md)
- [Get Started](https://langfuse.com/docs/observability/get-started.md)
- [Overview](https://langfuse.com/docs/observability/overview.md)
- [Advanced Features](https://langfuse.com/docs/observability/sdk/advanced-features.md)
- [Instrumentation](https://langfuse.com/docs/observability/sdk/instrumentation.md)
- [Overview](https://langfuse.com/docs/observability/sdk/overview.md)
- [Troubleshooting And Faq](https://langfuse.com/docs/observability/sdk/troubleshooting-and-faq.md)
- [Upgrade Path](https://langfuse.com/docs/observability/sdk/upgrade-path.md)
- [Troubleshooting And Faq](https://langfuse.com/docs/observability/troubleshooting-and-faq.md)
- [Data Model](https://langfuse.com/docs/prompt-management/data-model.md)
- [A B Testing](https://langfuse.com/docs/prompt-management/features/a-b-testing.md)
- [Caching](https://langfuse.com/docs/prompt-management/features/caching.md)
- [Composability](https://langfuse.com/docs/prompt-management/features/composability.md)
- [Config](https://langfuse.com/docs/prompt-management/features/config.md)
- [Folders](https://langfuse.com/docs/prompt-management/features/folders.md)
- [Github Integration](https://langfuse.com/docs/prompt-management/features/github-integration.md)
- [Guaranteed Availability](https://langfuse.com/docs/prompt-management/features/guaranteed-availability.md)
- [Link To Traces](https://langfuse.com/docs/prompt-management/features/link-to-traces.md)
- [Mcp Server](https://langfuse.com/docs/prompt-management/features/mcp-server.md)
- [Message Placeholders](https://langfuse.com/docs/prompt-management/features/message-placeholders.md)
- [N8n Node](https://langfuse.com/docs/prompt-management/features/n8n-node.md)
- [Playground](https://langfuse.com/docs/prompt-management/features/playground.md)
- [Prompt Version Control](https://langfuse.com/docs/prompt-management/features/prompt-version-control.md)
- [Variables](https://langfuse.com/docs/prompt-management/features/variables.md)
- [Webhooks Slack Integrations](https://langfuse.com/docs/prompt-management/features/webhooks-slack-integrations.md)
- [Get Started](https://langfuse.com/docs/prompt-management/get-started.md)
- [Overview](https://langfuse.com/docs/prompt-management/overview.md)
- [Troubleshooting And Faq](https://langfuse.com/docs/prompt-management/troubleshooting-and-faq.md)