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LangChain
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Overview
Developed byHarrison Chase
Maintained byLangChain AI Inc
Founded byHarrison Chase
Founded2022
LicenseMIT License
Open source✓ Open Source
Primary languagePython
Use casebuilding applications with large language models
Technical
Protocols
REST APIsREST API
Also see
Alternative to
LlamaIndex
Based onPython
Competes with
LlamaIndex
Knowledge graph stats
Claims64
Avg confidence93%
Avg freshness99%
Last updatedUpdated 4 days ago
WikidataQ117340550
Trust distribution
100% unverified
Governance
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LangChain

product — also known as: LangChain AI, LangChain Inc

Most widely adopted LLM orchestration framework for building AI applications in Python and JavaScript

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package manager

ValueTrustConfidenceFreshnessSources
PyPI○UnverifiedHighFresh1
pip○UnverifiedHighFresh1

open source

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true○UnverifiedHighFresh1

based on

ValueTrustConfidenceFreshnessSources
Python○UnverifiedHighFresh1

requires

ValueTrustConfidenceFreshnessSources
Python○UnverifiedHighFresh1
Python 3.8+○UnverifiedHighFresh1

written in

ValueTrustConfidenceFreshnessSources
Python○UnverifiedHighFresh1

programming language

ValueTrustConfidenceFreshnessSources
Python○UnverifiedHighFresh1
JavaScript○UnverifiedHighFresh1
Python, JavaScript/TypeScript○UnverifiedHighFresh1

license type

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MIT License○UnverifiedHighFresh1

integrates with

ValueTrustConfidenceFreshnessSources
OpenAI GPT models○UnverifiedHighFresh1
OpenAI○UnverifiedHighFresh1
Anthropic○UnverifiedHighFresh1
Hugging Face Transformers○UnverifiedHighFresh1
pgvector○UnverifiedHighFresh1
Weaviate○UnverifiedHighFresh1
Qdrant○UnverifiedHighFresh1
ChromaDB○UnverifiedHighFresh1
Pinecone○UnverifiedHighFresh1
Hugging Face○UnverifiedHighFresh1
OpenAI○UnverifiedHighFresh1
Anthropic Claude○UnverifiedHighFresh1
Vector databases○UnverifiedHighFresh1
Hugging Face Transformers○UnverifiedHighFresh1
Pinecone○UnverifiedHighFresh1
Anthropic○UnverifiedHighFresh1
Hugging Face models○UnverifiedHighFresh1
Chroma○UnverifiedHighFresh1
ChromaDB○UnverifiedModerateFresh1

supports database

ValueTrustConfidenceFreshnessSources
vector databases○UnverifiedHighFresh1

supports feature

ValueTrustConfidenceFreshnessSources
prompt templates○UnverifiedHighFresh1
document loading and processing○UnverifiedHighFresh1
vector databases○UnverifiedHighFresh1
retrieval augmented generation○UnverifiedHighFresh1

primary use case

ValueTrustConfidenceFreshnessSources
building applications with large language models○UnverifiedHighFresh1
building applications powered by large language models○UnverifiedHighFresh1

supports model

ValueTrustConfidenceFreshnessSources
OpenAI GPT models○UnverifiedHighFresh1
OpenAI GPT○UnverifiedHighFresh1
Anthropic Claude○UnverifiedHighFresh1
GPT-4○UnverifiedHighFresh1
Hugging Face Transformers○UnverifiedHighFresh1
Claude○UnverifiedHighFresh1

developed by

ValueTrustConfidenceFreshnessSources
Harrison Chase○UnverifiedHighFresh1

programming language support

ValueTrustConfidenceFreshnessSources
JavaScript○UnverifiedHighFresh1

supports language

ValueTrustConfidenceFreshnessSources
JavaScript○UnverifiedHighFresh1

has javascript version

ValueTrustConfidenceFreshnessSources
LangChain.js○UnverifiedHighFresh1

maintained by

ValueTrustConfidenceFreshnessSources
LangChain AI Inc○UnverifiedHighFresh1
LangChain AI○UnverifiedHighFresh1
LangChain Inc○UnverifiedHighFresh1
LangChain Inc.○UnverifiedHighFresh1

founded year

ValueTrustConfidenceFreshnessSources
2022○UnverifiedHighFresh1

founded by

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Harrison Chase○UnverifiedHighFresh1

founded in

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2022○UnverifiedHighFresh1

pricing model

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Open source with commercial services○UnverifiedModerateFresh1
Free open source with paid cloud services○UnverifiedModerateFresh1
Free open source with paid enterprise features○UnverifiedModerateFresh1
Free open source with commercial support○UnverifiedModerateFresh1
freemium○UnverifiedModerateFresh1

supports protocol

ValueTrustConfidenceFreshnessSources
REST APIs○UnverifiedModerateFresh1
REST API○UnverifiedModerateFresh1

supports framework

ValueTrustConfidenceFreshnessSources
Streamlit○UnverifiedModerateFresh1

alternative to

ValueTrustConfidenceFreshnessSources
LlamaIndex○UnverifiedModerateFresh1

competes with

ValueTrustConfidenceFreshnessSources
LlamaIndex○UnverifiedModerateFresh1

Alternatives & Similar Tools

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Commonly Used With

OpenAI GPT modelsOpenAIAnthropicHugging Face TransformerspgvectorWeaviateQdrantChromaDBPineconeHugging FaceOpenAIAnthropic ClaudeVector databasesHugging Face TransformersPineconeAnthropicHugging Face modelsChromaChromaDB

Related entities

Graph Insights

65 entities depend on LangChain
TrulensAgentopsRagasMarqoOllamaElasticsearch VectorRedis VectorLangSmith
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Claim count: 64Last updated: 4/5/2026Edit history