LangChain integrations
Welcome! These pages include reference documentation for all langchain-* Python integration packages.
To learn more about integrations in LangChain, visit the Integrations overview.
LangChain supports the Model Context Protocol (MCP). This lets external tools work with LangChain and LangGraph applications through a standard interface.
To use MCP tools in your project, see langchain-mcp-adapters.
Popular providers
langchain-openaiInteract with OpenAI (completions, responses) and OpenAI compatible APIs.
langchain-anthropicInteract with Claude (Anthropic) APIs.
langchain-google-genaiAccess Google Gemini models via the Google Gen AI SDK.
langchain-awsUse integrations related to the AWS platform such as Bedrock, S3, and more.
langchain-huggingfaceAccess HuggingFace-hosted models in LangChain.
langchain-groqInterface to Groq Cloud.
langchain-ollamaUse locally hosted models via Ollama.
Other providers are listed in the section navigation (left sidebar).
LangChain has hundreds of integrations, but not all are documented on this site. If you don't see the integration you're looking for, refer to their provider page in the LangChain docs. The community maintained langchain-community package was sunset in May 2026 and its integrations have moved to standalone packages.
For information on contributing new integrations, see the guide.