These tools integrates with

LangfusevsMastra

OSS LLM engineering platform (acquired by ClickHouse, Jan 2026) versus TypeScript AI agent framework by Vercel contributors

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Choose Langfuse when…

  • •You want open-source LLM observability
  • •Self-hosting your tracing stack is important
  • •You need cost tracking across models and users

Choose Mastra when…

  • •You're building TypeScript-native agentic workflows
  • •You want a structured framework for agent + RAG apps
  • •Node.js backend with AI logic is your stack

Side-by-side comparison

Field
Langfuse
Mastra
Category
Observability
Agent Frameworks
Type
Open Source
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Cloud: $59/mo
—
GitHub Stars
⭐ 7,000
⭐ 8,000
Health
●95 — Active
●95 — Active

Langfuse

Open-source platform for tracing, evaluations, and prompt management. Self-hostable alternative to LangSmith with broad framework support. Acquired by ClickHouse in January 2026; OSS core continues with deeper ClickHouse-backed analytics.

Website ↗GitHub ↗

Mastra

TypeScript-first framework for building AI agents and workflows. Supports tool use, memory, RAG, and evals with first-class Vercel AI SDK integration.

Website ↗GitHub ↗

Shared Connections2 tools both integrate with

OpenAI APIVercel AI SDK

Only Langfuse (29)

Claude CodeCrewAICursorLangGraphLangChainOpenHandsAutoGenLlamaIndexDifyMastra

Only Mastra (2)

Anthropic APILangfuse

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See how Langfuse and Mastra fit into the bigger picture — 235 tools, 543 relationships, all mapped.

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