langchain vs mastra

Common questions

What is the difference between langchain and mastra?

langchain: The agent engineering platform.. mastra: Modern TypeScript framework for AI-powered applications and agents. See the comparison table for live GitHub stats and shared categories.

When should I choose langchain over mastra?

Choose langchain over mastra when langchain is primarily Python; mastra is TypeScript; License: langchain is MIT, mastra is Other; Mastra can integrate with LangChain, as both are used to build AI applications and agents, potentially leveraging one another's functionalities for broader capabilities; Tags unique to langchain: ai-agents, framework, langchain, multiagent; Also covers LLM Frameworks; When you need a framework that simplifies chaining together interoperable components and third-party integrations for AI application development.

When should I choose mastra over langchain?

Choose mastra over langchain when mastra is primarily TypeScript; langchain is Python; License: mastra is Other, langchain is MIT; Pricing: The core framework is free and open-source under Apache License 2.0, but enterprise features require a valid enterprise license for production use.; Requirements: Requires TypeScript and Node.js for development.; Mastra can integrate with LangChain, as both are used to build AI applications and agents, potentially leveraging one another's functionalities for broader capabilities; Tags unique to mastra: ai, chatbots, evals, javascript; Also covers Developer Tools; When you need a TypeScript framework that supports AI functionalities such as chatbots, evaluations, and text-to-speech.

When should I avoid langchain?

If you prefer a framework that does not offer built-in capabilities for common usage patterns such as planning and subagents, as LangChain's Deep Agents provide these features. When you need a higher-level abstraction that does not require detailed agent orchestration, as LangChain's LangGraph is designed for low-level control over agent workflows.

When should I avoid mastra?

If your project strictly requires an entirely open-source solution without any proprietary enterprise components. When you prefer frameworks that do not differentiate between open-source and enterprise features, as Mastra has distinct enterprise features that require a separate license.

Is langchain or mastra more popular on GitHub?

langchain has more GitHub stars (146,576 vs 28,149). Stars measure visibility, not whether either tool fits your constraints.

Are langchain and mastra open source?

Yes - both are open-source projects on GitHub (langchain: MIT, mastra: Other).

Where can I find alternatives to langchain or mastra?

GraphCanon lists graph-backed alternatives at langchain alternatives and mastra alternatives (langchain markdown twin, mastra markdown twin), ranked by typed relationship edges rather than popularity votes.

Is there a machine-readable version of this comparison?

Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.

Which is better maintained, langchain or mastra?

langchain: Very active. mastra: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.

Where are the full trust reports for langchain and mastra?

GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: langchain trust report; mastra trust report.