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LangChain

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The agent engineering platform. Check the source for its current scope.

Best for: Python teams building model-powered applications that need a framework for approved models, tools, and retrieval components.

Limitations: Connecting confidential data or action-taking tools before every provider, integration, permission, and retention path is approved.

Public use: 141,781 GitHub stars · 23,554 forks
Activity: Release langchain-core==1.4.9 on 8 Jul 2026 · repository updated 14 Jul 2026
Community: 359 open issues · Discussions available
Checked: 14 Jul 2026

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