LangChain Python 集成

LangChain 提供了一个广泛的生态系统，涵盖聊天和嵌入模型、工具与工具包、文档加载器、向量存储等 1000 多种集成。 提供商是 LangChain 集成的第三方服务或平台，用于访问聊天模型、嵌入和向量存储等 AI 能力。这些提供商拥有独立的 langchain-provider 包，以改善版本管理、依赖管理和测试。

Chat models

Embedding models

Tools and toolkits

Sandboxes

要查看按组件类型分类的完整集成列表，请参阅侧边栏中的分类。

热门提供商

提供商	包
OpenAI	`langchain-openai`	✅
Google (Vertex AI)	`langchain-google-vertexai`	✅
Anthropic (Claude)	`langchain-anthropic`	✅
AWS	`langchain-aws`	✅
Google (GenAI)	`langchain-google-genai`	✅
Ollama	`langchain-ollama`	✅
Groq	`langchain-groq`	✅
Huggingface	`langchain-huggingface`	✅
Databricks	`databricks-langchain`	✅
Chroma	`langchain-chroma`	✅
Postgres	`langchain-postgres`	✅
Pinecone	`langchain-pinecone`	✅
MistralAI	`langchain-mistralai`	✅
Cohere	`langchain-cohere`	✅
Fireworks	`langchain-fireworks`	✅
MongoDB	`langchain-mongodb`	✅
xAI (Grok)	`langchain-xai`	✅
DeepSeek	`langchain-deepseek`	✅
Perplexity	`langchain-perplexity`	✅
Azure AI	`langchain-azure-ai`	✅
Nvidia AI Endpoints	`langchain-nvidia-ai-endpoints`	❌
IBM	`langchain-ibm`	✅
Tavily	`langchain-tavily`	✅
Qdrant	`langchain-qdrant`	✅
Milvus	`langchain-milvus`	✅
Elasticsearch	`langchain-elasticsearch`	✅
LiteLLM	`langchain-litellm`	N/A
DataStax Astra DB	`langchain-astradb`	✅
Redis	`langchain-redis`	✅
Together	`langchain-together`	✅
MCP Toolbox (Google)	`toolbox-langchain`	❌
OpenRouter	`langchain-openrouter`	❌
Google (Community)	`langchain-google-community`	❌
Unstructured	`langchain-unstructured`	✅
Neo4J	`langchain-neo4j`	✅
Graph RAG	`langchain-graph-retriever`	❌