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    LangChain logo

    LangChain

    Open Source★ FEATURED
    https://langchain.com
    >> OPEN TOOL

    LangChain is an open-source framework for building applications with large language models, providing abstractions for chains, agents, memory, and tool use that simplify complex LLM application development.

    Category

    Coding

    Subcategory

    API Development

    Free Tier

    Free and open source

    Paid Plans

    LangSmith hosted platform from $39/month

    API Cost

    LLM provider costs apply

    APICLI

    ●SOC2○ISO27001●GDPR●HIPAA

    ● certified · ○ not verified

    Compliance data is community-sourced and may be incomplete or out of date. Always verify certifications directly with the vendor's official trust or security page before relying on them.

    Region

    US (GCP us-central-1)

    Trains on Data

    No

    Self-hostable

    Yes

    Building RAG (retrieval-augmented generation) appsCreating AI agents with tool useChaining LLM calls for complex workflowsBuilding chatbots with memoryConnecting LLMs to external data sources

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