# Chain

- [GET API Chain](/windyflo/node-documentation/langchain/chain/get-api-chain.md)
- [OpenAPI Chain](/windyflo/node-documentation/langchain/chain/openapi-chain.md)
- [POST API Chain](/windyflo/node-documentation/langchain/chain/post-api-chain.md)
- [Conversation Chain](/windyflo/node-documentation/langchain/chain/conversation-chain.md)
- [Conversational Retrieval QA Chain](/windyflo/node-documentation/langchain/chain/conversational-retrieval-qa-chain.md)
- [Graph Cypher QA Chain](/windyflo/node-documentation/langchain/chain/graph-cypher-qa-chain.md)
- [LLM Chain](/windyflo/node-documentation/langchain/chain/llm-chain.md)
- [Multi Prompt Chain](/windyflo/node-documentation/langchain/chain/multi-prompt-chain.md)
- [Multi Retrieval QA Chain](/windyflo/node-documentation/langchain/chain/multi-retrieval-qa-chain.md)
- [Retrieval QA Chain](/windyflo/node-documentation/langchain/chain/retrieval-qa-chain.md)
- [Sql Database Chain](/windyflo/node-documentation/langchain/chain/sql-database-chain.md)
- [Vectara QA Chain](/windyflo/node-documentation/langchain/chain/vectara-qa-chain.md)
- [VectorDB QA Chain](/windyflo/node-documentation/langchain/chain/vectordb-qa-chain.md)