LangChain offers an extensive ecosystem with 1000+ integrations across chat & embedding models, tools & toolkits, document loaders, vector stores, and more. A provider is a company or platform that hosts AI models and exposes them through an API (e.g., OpenAI, Anthropic, Google). Many providers have a dedicatedDocumentation Index
Fetch the complete documentation index at: https://docs.langchain.com/llms.txt
Use this file to discover all available pages before exploring further.
langchain-<provider> package that implements one or more of LangChain’s standard interfaces—chat models, embedding models, vector stores, and more—giving you a consistent API regardless of the underlying provider. Install the package, pick a model name, and swap providers without changing your code.
Chat models
Embedding models
Tools and toolkits
Middleware
Checkpointers
Sandboxes
Popular providers
All providers
See all providers or search for a provider using the search field. Community integrations can be found inlangchain-community.
Want to build your own integration? See how to create a custom integration package.
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