menu.md

Quickstart GuideQuickstart Guide

Models LLMs Getting Started Generic Functionality How to use the async API for LLMs How to write a custom LLM wrapper How (and why) to use the fake LLM How to cache LLM calls How to serialize LLM classes How to stream LLM and Chat Model responses How to track token usage

Integrations AI21 Aleph Alpha Azure OpenAI Banana CerebriumAI Cohere DeepInfra ForefrontAI GooseAI GPT4All Hugging Face Hub Hugging Face Local Pipelines Llama-cpp Manifest Modal NLP Cloud OpenAI Petals PipelineAI PredictionGuard PromptLayer OpenAI Replicate Runhouse SageMakerEndpoint StochasticAI Writer

Reference

Chat Models Getting Started How-To Guides How to use few shot examples How to stream responses

Integrations Anthropic Azure OpenAI PromptLayer ChatOpenAI

Text Embedding Models Aleph Alpha AzureOpenAI Cohere Fake Embeddings Hugging Face Hub InstructEmbeddings Jina Llama-cpp OpenAI SageMaker Endpoint Embeddings Self Hosted Embeddings Sentence Transformers Embeddings TensorflowHub[Models LLMs Getting Started Generic Functionality How to use the async API for LLMs How to write a custom LLM wrapper How (and why) to use the fake LLM How to cache LLM calls How to serialize LLM classes How to stream LLM and Chat Model responses How to track token usage

Integrations AI21 Aleph Alpha Azure OpenAI Banana CerebriumAI Cohere DeepInfra ForefrontAI GooseAI GPT4All Hugging Face Hub Hugging Face Local Pipelines Llama-cpp Manifest Modal NLP Cloud OpenAI Petals PipelineAI PredictionGuard PromptLayer OpenAI Replicate Runhouse SageMakerEndpoint StochasticAI Writer

Reference

Chat Models Getting Started How-To Guides How to use few shot examples How to stream responses

Integrations Anthropic Azure OpenAI PromptLayer ChatOpenAI

Text Embedding Models Aleph Alpha AzureOpenAI Cohere Fake Embeddings Hugging Face Hub InstructEmbeddings Jina Llama-cpp OpenAI SageMaker Endpoint Embeddings Self Hosted Embeddings Sentence Transformers Embeddings TensorflowHub](None)

Prompts Prompt Templates Getting Started How-To Guides Connecting to a Feature Store How to create a custom prompt template How to create a prompt template that uses few shot examples How to work with partial Prompt Templates How to serialize prompts

Reference PromptTemplates Example Selector Output Parsers

Chat Prompt Template Example Selectors How to create a custom example selector LengthBased ExampleSelector Maximal Marginal Relevance ExampleSelector NGram Overlap ExampleSelector Similarity ExampleSelector

Output Parsers Output Parsers CommaSeparatedListOutputParser OutputFixingParser PydanticOutputParser RetryOutputParser Structured Output Parser[Prompts Prompt Templates Getting Started How-To Guides Connecting to a Feature Store How to create a custom prompt template How to create a prompt template that uses few shot examples How to work with partial Prompt Templates How to serialize prompts

Reference PromptTemplates Example Selector Output Parsers

Chat Prompt Template Example Selectors How to create a custom example selector LengthBased ExampleSelector Maximal Marginal Relevance ExampleSelector NGram Overlap ExampleSelector Similarity ExampleSelector

Output Parsers Output Parsers CommaSeparatedListOutputParser OutputFixingParser PydanticOutputParser RetryOutputParser Structured Output Parser](None)

Indexes Getting Started Document Loaders CoNLL-U Airbyte JSON Apify Dataset Arxiv AZLyrics Azure Blob Storage Container Azure Blob Storage File BigQuery Loader Bilibili Blackboard Blockchain ChatGPT Data Loader College Confidential Confluence Copy Paste CSV Loader DataFrame Loader Diffbot Directory Loader Discord DuckDB Loader Email EPubs EverNote Facebook Chat Figma GCS Directory GCS File Storage Git GitBook Google Drive Gutenberg Hacker News HTML HuggingFace dataset loader iFixit Images Image captions IMSDb Markdown Notebook Notion Notion DB Loader Obsidian PDF PowerPoint ReadTheDocs Documentation Reddit Roam s3 Directory s3 File Sitemap Loader Slack (Local Exported Zipfile) Subtitle Files Stripe Telegram Twitter Unstructured File Loader URL Web Base WhatsApp Chat Word Documents YouTube

Text Splitters Getting Started Character Text Splitter Hugging Face Length Function Latex Text Splitter Markdown Text Splitter NLTK Text Splitter Python Code Text Splitter RecursiveCharacterTextSplitter Spacy Text Splitter tiktoken (OpenAI) Length Function TiktokenText Splitter

Vectorstores Getting Started AnalyticDB Annoy AtlasDB Chroma Deep Lake ElasticSearch FAISS LanceDB Milvus MyScale OpenSearch PGVector Pinecone Qdrant Redis SupabaseVectorStore Tair Weaviate Zilliz

Retrievers ChatGPT Plugin Retriever Contextual Compression Retriever Databerry ElasticSearch BM25 Metal Pinecone Hybrid Search Self-querying retriever SVM Retriever TF-IDF Retriever Time Weighted VectorStore Retriever VectorStore Retriever Vespa retriever Weaviate Hybrid Search[Indexes Getting Started Document Loaders CoNLL-U Airbyte JSON Apify Dataset Arxiv AZLyrics Azure Blob Storage Container Azure Blob Storage File BigQuery Loader Bilibili Blackboard Blockchain ChatGPT Data Loader College Confidential Confluence Copy Paste CSV Loader DataFrame Loader Diffbot Directory Loader Discord DuckDB Loader Email EPubs EverNote Facebook Chat Figma GCS Directory GCS File Storage Git GitBook Google Drive Gutenberg Hacker News HTML HuggingFace dataset loader iFixit Images Image captions IMSDb Markdown Notebook Notion Notion DB Loader Obsidian PDF PowerPoint ReadTheDocs Documentation Reddit Roam s3 Directory s3 File Sitemap Loader Slack (Local Exported Zipfile) Subtitle Files Stripe Telegram Twitter Unstructured File Loader URL Web Base WhatsApp Chat Word Documents YouTube

Text Splitters Getting Started Character Text Splitter Hugging Face Length Function Latex Text Splitter Markdown Text Splitter NLTK Text Splitter Python Code Text Splitter RecursiveCharacterTextSplitter Spacy Text Splitter tiktoken (OpenAI) Length Function TiktokenText Splitter

Vectorstores Getting Started AnalyticDB Annoy AtlasDB Chroma Deep Lake ElasticSearch FAISS LanceDB Milvus MyScale OpenSearch PGVector Pinecone Qdrant Redis SupabaseVectorStore Tair Weaviate Zilliz

Retrievers ChatGPT Plugin Retriever Contextual Compression Retriever Databerry ElasticSearch BM25 Metal Pinecone Hybrid Search Self-querying retriever SVM Retriever TF-IDF Retriever Time Weighted VectorStore Retriever VectorStore Retriever Vespa retriever Weaviate Hybrid Search](None)

Memory Getting Started How-To Guides ConversationBufferMemory ConversationBufferWindowMemory Entity Memory Conversation Knowledge Graph Memory ConversationSummaryMemory ConversationSummaryBufferMemory ConversationTokenBufferMemory VectorStore-Backed Memory How to add Memory to an LLMChain How to add memory to a Multi-Input Chain How to add Memory to an Agent Adding Message Memory backed by a database to an Agent How to customize conversational memory How to create a custom Memory class Motörhead Memory How to use multiple memory classes in the same chain Postgres Chat Message History Redis Chat Message HistoryMemory Getting Started How-To Guides ConversationBufferMemory ConversationBufferWindowMemory Entity Memory Conversation Knowledge Graph Memory ConversationSummaryMemory ConversationSummaryBufferMemory ConversationTokenBufferMemory VectorStore-Backed Memory How to add Memory to an LLMChain How to add memory to a Multi-Input Chain How to add Memory to an Agent Adding Message Memory backed by a database to an Agent How to customize conversational memory How to create a custom Memory class Motörhead Memory How to use multiple memory classes in the same chain Postgres Chat Message History Redis Chat Message History

Chains Getting Started How-To Guides Async API for Chain Loading from LangChainHub LLM Chain Sequential Chains Serialization Transformation Chain Analyze Document Chat Over Documents with Chat History Graph QA Hypothetical Document Embeddings Question Answering with Sources Question Answering Summarization Retrieval Question/Answering Retrieval Question Answering with Sources Vector DB Text Generation API Chains Self-Critique Chain with Constitutional AI BashChain LLMCheckerChain LLM Math LLMRequestsChain LLMSummarizationCheckerChain Moderation OpenAPI Chain PAL SQL Chain example

Reference[Chains Getting Started How-To Guides Async API for Chain Loading from LangChainHub LLM Chain Sequential Chains Serialization Transformation Chain Analyze Document Chat Over Documents with Chat History Graph QA Hypothetical Document Embeddings Question Answering with Sources Question Answering Summarization Retrieval Question/Answering Retrieval Question Answering with Sources Vector DB Text Generation API Chains Self-Critique Chain with Constitutional AI BashChain LLMCheckerChain LLM Math LLMRequestsChain LLMSummarizationCheckerChain Moderation OpenAPI Chain PAL SQL Chain example

Reference](None)

Agents Getting Started Tools Getting Started Defining Custom Tools Multi-Input Tools Tool Input Schema Apify Arxiv API Shell Tool Bing Search ChatGPT Plugins DuckDuckGo Search File System Tools Google Places Google Search Google Serper API Gradio Tools Human as a tool IFTTT WebHooks OpenWeatherMap API Python REPL Requests SceneXplain Search Tools SearxNG Search API SerpAPI Wikipedia API Wolfram Alpha Zapier Natural Language Actions API

Agents Agent Types Custom Agent Custom LLM Agent Custom LLM Agent (with a ChatModel) Custom MRKL Agent Custom MultiAction Agent Custom Agent with Tool Retrieval Conversation Agent (for Chat Models) Conversation Agent MRKL MRKL Chat ReAct Self Ask With Search

Toolkits CSV Agent Jira JSON Agent OpenAPI agents Natural Language APIs Pandas Dataframe Agent PlayWright Browser Toolkit PowerBI Dataset Agent Python Agent SQL Database Agent Vectorstore Agent

Agent Executors How to combine agents and vectorstores How to use the async API for Agents How to create ChatGPT Clone How to access intermediate steps How to cap the max number of iterations How to use a timeout for the agent How to add SharedMemory to an Agent and its Tools[Agents Getting Started Tools Getting Started Defining Custom Tools Multi-Input Tools Tool Input Schema Apify Arxiv API Shell Tool Bing Search ChatGPT Plugins DuckDuckGo Search File System Tools Google Places Google Search Google Serper API Gradio Tools Human as a tool IFTTT WebHooks OpenWeatherMap API Python REPL Requests SceneXplain Search Tools SearxNG Search API SerpAPI Wikipedia API Wolfram Alpha Zapier Natural Language Actions API

Agents Agent Types Custom Agent Custom LLM Agent Custom LLM Agent (with a ChatModel) Custom MRKL Agent Custom MultiAction Agent Custom Agent with Tool Retrieval Conversation Agent (for Chat Models) Conversation Agent MRKL MRKL Chat ReAct Self Ask With Search

Toolkits CSV Agent Jira JSON Agent OpenAPI agents Natural Language APIs Pandas Dataframe Agent PlayWright Browser Toolkit PowerBI Dataset Agent Python Agent SQL Database Agent Vectorstore Agent

Agent Executors How to combine agents and vectorstores How to use the async API for Agents How to create ChatGPT Clone How to access intermediate steps How to cap the max number of iterations How to use a timeout for the agent How to add SharedMemory to an Agent and its Tools](None)

Personal Assistants (Agents)Personal Assistants (Agents)

Autonomous AgentsAutonomous Agents

Agent SimulationsAgent Simulations

Question Answering over DocsQuestion Answering over Docs

ChatbotsChatbots

Querying Tabular DataQuerying Tabular Data

Code UnderstandingCode Understanding

Interacting with APIsInteracting with APIs

SummarizationSummarization

ExtractionExtraction

Evaluation Agent Benchmarking: Search + Calculator Agent VectorDB Question Answering Benchmarking Benchmarking Template Data Augmented Question Answering Generic Agent Evaluation Using Hugging Face Datasets LLM Math Evaluating an OpenAPI Chain Question Answering Benchmarking: Paul Graham Essay Question Answering Benchmarking: State of the Union Address QA Generation Question Answering SQL Question Answering Benchmarking: ChinookEvaluation Agent Benchmarking: Search + Calculator Agent VectorDB Question Answering Benchmarking Benchmarking Template Data Augmented Question Answering Generic Agent Evaluation Using Hugging Face Datasets LLM Math Evaluating an OpenAPI Chain Question Answering Benchmarking: Paul Graham Essay Question Answering Benchmarking: State of the Union Address QA Generation Question Answering SQL Question Answering Benchmarking: Chinook

InstallationInstallation

IntegrationsIntegrations

API References Models LLMs Chat Models Embeddings

Prompts PromptTemplates Example Selector Output Parsers

Indexes Docstore Text Splitter Document Loaders Vector Stores Retrievers Document Compressors Document Transformers

Memory Chains Agents Agents Tools Agent Toolkits

Utilities Experimental Modules[API References Models LLMs Chat Models Embeddings

Prompts PromptTemplates Example Selector Output Parsers

Indexes Docstore Text Splitter Document Loaders Vector Stores Retrievers Document Compressors Document Transformers

Memory Chains Agents Agents Tools Agent Toolkits

Utilities Experimental Modules](None)

LangChain Ecosystem AI21 Labs Aim AnalyticDB Apify AtlasDB Banana CerebriumAI Chroma ClearML Integration Cohere Comet Databerry DeepInfra Deep Lake ForefrontAI Google Search Wrapper Google Serper Wrapper GooseAI GPT4All Graphsignal Hazy Research Helicone Hugging Face Jina LanceDB Llama.cpp Metal Milvus Modal MyScale NLPCloud OpenAI OpenSearch Petals PGVector Pinecone PipelineAI Prediction Guard PromptLayer Qdrant Redis Replicate Runhouse RWKV-4 SearxNG Search API SerpAPI StochasticAI Tair Unstructured Weights & Biases Weaviate Wolfram Alpha Wrapper Writer Yeager.ai ZillizLangChain Ecosystem AI21 Labs Aim AnalyticDB Apify AtlasDB Banana CerebriumAI Chroma ClearML Integration Cohere Comet Databerry DeepInfra Deep Lake ForefrontAI Google Search Wrapper Google Serper Wrapper GooseAI GPT4All Graphsignal Hazy Research Helicone Hugging Face Jina LanceDB Llama.cpp Metal Milvus Modal MyScale NLPCloud OpenAI OpenSearch Petals PGVector Pinecone PipelineAI Prediction Guard PromptLayer Qdrant Redis Replicate Runhouse RWKV-4 SearxNG Search API SerpAPI StochasticAI Tair Unstructured Weights & Biases Weaviate Wolfram Alpha Wrapper Writer Yeager.ai Zilliz

LangChainHubLangChainHub

GlossaryGlossary

LangChain GalleryLangChain Gallery

DeploymentsDeployments

TracingTracing

DiscordDiscord

YouTubeYouTube

Production SupportProduction Support

LLMs Getting Started Generic Functionality How to use the async API for LLMs How to write a custom LLM wrapper How (and why) to use the fake LLM How to cache LLM calls How to serialize LLM classes How to stream LLM and Chat Model responses How to track token usage

Integrations AI21 Aleph Alpha Azure OpenAI Banana CerebriumAI Cohere DeepInfra ForefrontAI GooseAI GPT4All Hugging Face Hub Hugging Face Local Pipelines Llama-cpp Manifest Modal NLP Cloud OpenAI Petals PipelineAI PredictionGuard PromptLayer OpenAI Replicate Runhouse SageMakerEndpoint StochasticAI Writer

Reference[LLMs Getting Started Generic Functionality How to use the async API for LLMs How to write a custom LLM wrapper How (and why) to use the fake LLM How to cache LLM calls How to serialize LLM classes How to stream LLM and Chat Model responses How to track token usage

Integrations AI21 Aleph Alpha Azure OpenAI Banana CerebriumAI Cohere DeepInfra ForefrontAI GooseAI GPT4All Hugging Face Hub Hugging Face Local Pipelines Llama-cpp Manifest Modal NLP Cloud OpenAI Petals PipelineAI PredictionGuard PromptLayer OpenAI Replicate Runhouse SageMakerEndpoint StochasticAI Writer

Reference](None)

Chat Models Getting Started How-To Guides How to use few shot examples How to stream responses

Integrations Anthropic Azure OpenAI PromptLayer ChatOpenAI[Chat Models Getting Started How-To Guides How to use few shot examples How to stream responses

Integrations Anthropic Azure OpenAI PromptLayer ChatOpenAI](None)

Text Embedding Models Aleph Alpha AzureOpenAI Cohere Fake Embeddings Hugging Face Hub InstructEmbeddings Jina Llama-cpp OpenAI SageMaker Endpoint Embeddings Self Hosted Embeddings Sentence Transformers Embeddings TensorflowHubText Embedding Models Aleph Alpha AzureOpenAI Cohere Fake Embeddings Hugging Face Hub InstructEmbeddings Jina Llama-cpp OpenAI SageMaker Endpoint Embeddings Self Hosted Embeddings Sentence Transformers Embeddings TensorflowHub

Prompt Templates Getting Started How-To Guides Connecting to a Feature Store How to create a custom prompt template How to create a prompt template that uses few shot examples How to work with partial Prompt Templates How to serialize prompts

Reference PromptTemplates Example Selector Output Parsers[Prompt Templates Getting Started How-To Guides Connecting to a Feature Store How to create a custom prompt template How to create a prompt template that uses few shot examples How to work with partial Prompt Templates How to serialize prompts

Reference PromptTemplates Example Selector Output Parsers](None)

Chat Prompt TemplateChat Prompt Template

Example Selectors How to create a custom example selector LengthBased ExampleSelector Maximal Marginal Relevance ExampleSelector NGram Overlap ExampleSelector Similarity ExampleSelectorExample Selectors How to create a custom example selector LengthBased ExampleSelector Maximal Marginal Relevance ExampleSelector NGram Overlap ExampleSelector Similarity ExampleSelector

Output Parsers Output Parsers CommaSeparatedListOutputParser OutputFixingParser PydanticOutputParser RetryOutputParser Structured Output ParserOutput Parsers Output Parsers CommaSeparatedListOutputParser OutputFixingParser PydanticOutputParser RetryOutputParser Structured Output Parser

Getting StartedGetting Started

Document Loaders CoNLL-U Airbyte JSON Apify Dataset Arxiv AZLyrics Azure Blob Storage Container Azure Blob Storage File BigQuery Loader Bilibili Blackboard Blockchain ChatGPT Data Loader College Confidential Confluence Copy Paste CSV Loader DataFrame Loader Diffbot Directory Loader Discord DuckDB Loader Email EPubs EverNote Facebook Chat Figma GCS Directory GCS File Storage Git GitBook Google Drive Gutenberg Hacker News HTML HuggingFace dataset loader iFixit Images Image captions IMSDb Markdown Notebook Notion Notion DB Loader Obsidian PDF PowerPoint ReadTheDocs Documentation Reddit Roam s3 Directory s3 File Sitemap Loader Slack (Local Exported Zipfile) Subtitle Files Stripe Telegram Twitter Unstructured File Loader URL Web Base WhatsApp Chat Word Documents YouTubeDocument Loaders CoNLL-U Airbyte JSON Apify Dataset Arxiv AZLyrics Azure Blob Storage Container Azure Blob Storage File BigQuery Loader Bilibili Blackboard Blockchain ChatGPT Data Loader College Confidential Confluence Copy Paste CSV Loader DataFrame Loader Diffbot Directory Loader Discord DuckDB Loader Email EPubs EverNote Facebook Chat Figma GCS Directory GCS File Storage Git GitBook Google Drive Gutenberg Hacker News HTML HuggingFace dataset loader iFixit Images Image captions IMSDb Markdown Notebook Notion Notion DB Loader Obsidian PDF PowerPoint ReadTheDocs Documentation Reddit Roam s3 Directory s3 File Sitemap Loader Slack (Local Exported Zipfile) Subtitle Files Stripe Telegram Twitter Unstructured File Loader URL Web Base WhatsApp Chat Word Documents YouTube

Text Splitters Getting Started Character Text Splitter Hugging Face Length Function Latex Text Splitter Markdown Text Splitter NLTK Text Splitter Python Code Text Splitter RecursiveCharacterTextSplitter Spacy Text Splitter tiktoken (OpenAI) Length Function TiktokenText SplitterText Splitters Getting Started Character Text Splitter Hugging Face Length Function Latex Text Splitter Markdown Text Splitter NLTK Text Splitter Python Code Text Splitter RecursiveCharacterTextSplitter Spacy Text Splitter tiktoken (OpenAI) Length Function TiktokenText Splitter

Vectorstores Getting Started AnalyticDB Annoy AtlasDB Chroma Deep Lake ElasticSearch FAISS LanceDB Milvus MyScale OpenSearch PGVector Pinecone Qdrant Redis SupabaseVectorStore Tair Weaviate ZillizVectorstores Getting Started AnalyticDB Annoy AtlasDB Chroma Deep Lake ElasticSearch FAISS LanceDB Milvus MyScale OpenSearch PGVector Pinecone Qdrant Redis SupabaseVectorStore Tair Weaviate Zilliz

Retrievers ChatGPT Plugin Retriever Contextual Compression Retriever Databerry ElasticSearch BM25 Metal Pinecone Hybrid Search Self-querying retriever SVM Retriever TF-IDF Retriever Time Weighted VectorStore Retriever VectorStore Retriever Vespa retriever Weaviate Hybrid SearchRetrievers ChatGPT Plugin Retriever Contextual Compression Retriever Databerry ElasticSearch BM25 Metal Pinecone Hybrid Search Self-querying retriever SVM Retriever TF-IDF Retriever Time Weighted VectorStore Retriever VectorStore Retriever Vespa retriever Weaviate Hybrid Search

Getting StartedGetting Started

How-To Guides ConversationBufferMemory ConversationBufferWindowMemory Entity Memory Conversation Knowledge Graph Memory ConversationSummaryMemory ConversationSummaryBufferMemory ConversationTokenBufferMemory VectorStore-Backed Memory How to add Memory to an LLMChain How to add memory to a Multi-Input Chain How to add Memory to an Agent Adding Message Memory backed by a database to an Agent How to customize conversational memory How to create a custom Memory class Motörhead Memory How to use multiple memory classes in the same chain Postgres Chat Message History Redis Chat Message HistoryHow-To Guides ConversationBufferMemory ConversationBufferWindowMemory Entity Memory Conversation Knowledge Graph Memory ConversationSummaryMemory ConversationSummaryBufferMemory ConversationTokenBufferMemory VectorStore-Backed Memory How to add Memory to an LLMChain How to add memory to a Multi-Input Chain How to add Memory to an Agent Adding Message Memory backed by a database to an Agent How to customize conversational memory How to create a custom Memory class Motörhead Memory How to use multiple memory classes in the same chain Postgres Chat Message History Redis Chat Message History

Getting StartedGetting Started

How-To Guides Async API for Chain Loading from LangChainHub LLM Chain Sequential Chains Serialization Transformation Chain Analyze Document Chat Over Documents with Chat History Graph QA Hypothetical Document Embeddings Question Answering with Sources Question Answering Summarization Retrieval Question/Answering Retrieval Question Answering with Sources Vector DB Text Generation API Chains Self-Critique Chain with Constitutional AI BashChain LLMCheckerChain LLM Math LLMRequestsChain LLMSummarizationCheckerChain Moderation OpenAPI Chain PAL SQL Chain exampleHow-To Guides Async API for Chain Loading from LangChainHub LLM Chain Sequential Chains Serialization Transformation Chain Analyze Document Chat Over Documents with Chat History Graph QA Hypothetical Document Embeddings Question Answering with Sources Question Answering Summarization Retrieval Question/Answering Retrieval Question Answering with Sources Vector DB Text Generation API Chains Self-Critique Chain with Constitutional AI BashChain LLMCheckerChain LLM Math LLMRequestsChain LLMSummarizationCheckerChain Moderation OpenAPI Chain PAL SQL Chain example

ReferenceReference

Getting StartedGetting Started

Tools Getting Started Defining Custom Tools Multi-Input Tools Tool Input Schema Apify Arxiv API Shell Tool Bing Search ChatGPT Plugins DuckDuckGo Search File System Tools Google Places Google Search Google Serper API Gradio Tools Human as a tool IFTTT WebHooks OpenWeatherMap API Python REPL Requests SceneXplain Search Tools SearxNG Search API SerpAPI Wikipedia API Wolfram Alpha Zapier Natural Language Actions APITools Getting Started Defining Custom Tools Multi-Input Tools Tool Input Schema Apify Arxiv API Shell Tool Bing Search ChatGPT Plugins DuckDuckGo Search File System Tools Google Places Google Search Google Serper API Gradio Tools Human as a tool IFTTT WebHooks OpenWeatherMap API Python REPL Requests SceneXplain Search Tools SearxNG Search API SerpAPI Wikipedia API Wolfram Alpha Zapier Natural Language Actions API

Agents Agent Types Custom Agent Custom LLM Agent Custom LLM Agent (with a ChatModel) Custom MRKL Agent Custom MultiAction Agent Custom Agent with Tool Retrieval Conversation Agent (for Chat Models) Conversation Agent MRKL MRKL Chat ReAct Self Ask With SearchAgents Agent Types Custom Agent Custom LLM Agent Custom LLM Agent (with a ChatModel) Custom MRKL Agent Custom MultiAction Agent Custom Agent with Tool Retrieval Conversation Agent (for Chat Models) Conversation Agent MRKL MRKL Chat ReAct Self Ask With Search

Toolkits CSV Agent Jira JSON Agent OpenAPI agents Natural Language APIs Pandas Dataframe Agent PlayWright Browser Toolkit PowerBI Dataset Agent Python Agent SQL Database Agent Vectorstore AgentToolkits CSV Agent Jira JSON Agent OpenAPI agents Natural Language APIs Pandas Dataframe Agent PlayWright Browser Toolkit PowerBI Dataset Agent Python Agent SQL Database Agent Vectorstore Agent

Agent Executors How to combine agents and vectorstores How to use the async API for Agents How to create ChatGPT Clone How to access intermediate steps How to cap the max number of iterations How to use a timeout for the agent How to add SharedMemory to an Agent and its ToolsAgent Executors How to combine agents and vectorstores How to use the async API for Agents How to create ChatGPT Clone How to access intermediate steps How to cap the max number of iterations How to use a timeout for the agent How to add SharedMemory to an Agent and its Tools

Agent Benchmarking: Search + CalculatorAgent Benchmarking: Search + Calculator

Agent VectorDB Question Answering BenchmarkingAgent VectorDB Question Answering Benchmarking

Benchmarking TemplateBenchmarking Template

Data Augmented Question AnsweringData Augmented Question Answering

Generic Agent EvaluationGeneric Agent Evaluation

Using Hugging Face DatasetsUsing Hugging Face Datasets

LLM MathLLM Math

Evaluating an OpenAPI ChainEvaluating an OpenAPI Chain

Question Answering Benchmarking: Paul Graham EssayQuestion Answering Benchmarking: Paul Graham Essay

Question Answering Benchmarking: State of the Union AddressQuestion Answering Benchmarking: State of the Union Address

QA GenerationQA Generation

Question AnsweringQuestion Answering

SQL Question Answering Benchmarking: ChinookSQL Question Answering Benchmarking: Chinook

Models LLMs Chat Models EmbeddingsModels LLMs Chat Models Embeddings

Prompts PromptTemplates Example Selector Output ParsersPrompts PromptTemplates Example Selector Output Parsers

Indexes Docstore Text Splitter Document Loaders Vector Stores Retrievers Document Compressors Document TransformersIndexes Docstore Text Splitter Document Loaders Vector Stores Retrievers Document Compressors Document Transformers

MemoryMemory

ChainsChains

Agents Agents Tools Agent ToolkitsAgents Agents Tools Agent Toolkits

UtilitiesUtilities

Experimental ModulesExperimental Modules

AI21 LabsAI21 Labs

AimAim

AnalyticDBAnalyticDB

ApifyApify

AtlasDBAtlasDB

BananaBanana

CerebriumAICerebriumAI

ChromaChroma

ClearML IntegrationClearML Integration

CohereCohere

CometComet

DataberryDataberry

DeepInfraDeepInfra

Deep LakeDeep Lake

ForefrontAIForefrontAI

Google Search WrapperGoogle Search Wrapper

Google Serper WrapperGoogle Serper Wrapper

GooseAIGooseAI

GPT4AllGPT4All

GraphsignalGraphsignal

Hazy ResearchHazy Research

HeliconeHelicone

Hugging FaceHugging Face

JinaJina

LanceDBLanceDB

Llama.cppLlama.cpp

MetalMetal

MilvusMilvus

ModalModal

MyScaleMyScale

NLPCloudNLPCloud

OpenAIOpenAI

OpenSearchOpenSearch

PetalsPetals

PGVectorPGVector

PineconePinecone

PipelineAIPipelineAI

Prediction GuardPrediction Guard

PromptLayerPromptLayer

QdrantQdrant

RedisRedis

ReplicateReplicate

RunhouseRunhouse

RWKV-4RWKV-4

SearxNG Search APISearxNG Search API

SerpAPISerpAPI

StochasticAIStochasticAI

TairTair

UnstructuredUnstructured

Weights & BiasesWeights & Biases

WeaviateWeaviate

Wolfram Alpha WrapperWolfram Alpha Wrapper

WriterWriter

Yeager.aiYeager.ai

ZillizZilliz

Getting StartedGetting Started

Generic Functionality How to use the async API for LLMs How to write a custom LLM wrapper How (and why) to use the fake LLM How to cache LLM calls How to serialize LLM classes How to stream LLM and Chat Model responses How to track token usageGeneric Functionality How to use the async API for LLMs How to write a custom LLM wrapper How (and why) to use the fake LLM How to cache LLM calls How to serialize LLM classes How to stream LLM and Chat Model responses How to track token usage

Integrations AI21 Aleph Alpha Azure OpenAI Banana CerebriumAI Cohere DeepInfra ForefrontAI GooseAI GPT4All Hugging Face Hub Hugging Face Local Pipelines Llama-cpp Manifest Modal NLP Cloud OpenAI Petals PipelineAI PredictionGuard PromptLayer OpenAI Replicate Runhouse SageMakerEndpoint StochasticAI WriterIntegrations AI21 Aleph Alpha Azure OpenAI Banana CerebriumAI Cohere DeepInfra ForefrontAI GooseAI GPT4All Hugging Face Hub Hugging Face Local Pipelines Llama-cpp Manifest Modal NLP Cloud OpenAI Petals PipelineAI PredictionGuard PromptLayer OpenAI Replicate Runhouse SageMakerEndpoint StochasticAI Writer

ReferenceReference

Getting StartedGetting Started

How-To Guides How to use few shot examples How to stream responsesHow-To Guides How to use few shot examples How to stream responses

Integrations Anthropic Azure OpenAI PromptLayer ChatOpenAIIntegrations Anthropic Azure OpenAI PromptLayer ChatOpenAI

Aleph AlphaAleph Alpha

AzureOpenAIAzureOpenAI

CohereCohere

Fake EmbeddingsFake Embeddings

Hugging Face HubHugging Face Hub

InstructEmbeddingsInstructEmbeddings

JinaJina

Llama-cppLlama-cpp

OpenAIOpenAI

SageMaker Endpoint EmbeddingsSageMaker Endpoint Embeddings

Self Hosted EmbeddingsSelf Hosted Embeddings

Sentence Transformers EmbeddingsSentence Transformers Embeddings

TensorflowHubTensorflowHub

Getting StartedGetting Started

How-To Guides Connecting to a Feature Store How to create a custom prompt template How to create a prompt template that uses few shot examples How to work with partial Prompt Templates How to serialize promptsHow-To Guides Connecting to a Feature Store How to create a custom prompt template How to create a prompt template that uses few shot examples How to work with partial Prompt Templates How to serialize prompts

Reference PromptTemplates Example Selector Output ParsersReference PromptTemplates Example Selector Output Parsers

How to create a custom example selectorHow to create a custom example selector

LengthBased ExampleSelectorLengthBased ExampleSelector

Maximal Marginal Relevance ExampleSelectorMaximal Marginal Relevance ExampleSelector

NGram Overlap ExampleSelectorNGram Overlap ExampleSelector

Similarity ExampleSelectorSimilarity ExampleSelector

Output ParsersOutput Parsers

CommaSeparatedListOutputParserCommaSeparatedListOutputParser

OutputFixingParserOutputFixingParser

PydanticOutputParserPydanticOutputParser

RetryOutputParserRetryOutputParser

Structured Output ParserStructured Output Parser

CoNLL-UCoNLL-U

Airbyte JSONAirbyte JSON

Apify DatasetApify Dataset

ArxivArxiv

AZLyricsAZLyrics

Azure Blob Storage ContainerAzure Blob Storage Container

Azure Blob Storage FileAzure Blob Storage File

BigQuery LoaderBigQuery Loader

BilibiliBilibili

BlackboardBlackboard

BlockchainBlockchain

ChatGPT Data LoaderChatGPT Data Loader

College ConfidentialCollege Confidential

ConfluenceConfluence

Copy PasteCopy Paste

CSV LoaderCSV Loader

DataFrame LoaderDataFrame Loader

DiffbotDiffbot

Directory LoaderDirectory Loader

DiscordDiscord

DuckDB LoaderDuckDB Loader

EmailEmail

EPubsEPubs

EverNoteEverNote

Facebook ChatFacebook Chat

FigmaFigma

GCS DirectoryGCS Directory

GCS File StorageGCS File Storage

GitGit

GitBookGitBook

Google DriveGoogle Drive

GutenbergGutenberg

Hacker NewsHacker News

HTMLHTML

HuggingFace dataset loaderHuggingFace dataset loader

iFixitiFixit

ImagesImages

Image captionsImage captions

IMSDbIMSDb

MarkdownMarkdown

NotebookNotebook

NotionNotion

Notion DB LoaderNotion DB Loader

ObsidianObsidian

PDFPDF

PowerPointPowerPoint

ReadTheDocs DocumentationReadTheDocs Documentation

RedditReddit

RoamRoam

s3 Directorys3 Directory

s3 Files3 File

Sitemap LoaderSitemap Loader

Slack (Local Exported Zipfile)Slack (Local Exported Zipfile)

Subtitle FilesSubtitle Files

StripeStripe

TelegramTelegram

TwitterTwitter

Unstructured File LoaderUnstructured File Loader

URLURL

Web BaseWeb Base

WhatsApp ChatWhatsApp Chat

Word DocumentsWord Documents

YouTubeYouTube

Getting StartedGetting Started

Character Text SplitterCharacter Text Splitter

Hugging Face Length FunctionHugging Face Length Function

Latex Text SplitterLatex Text Splitter

Markdown Text SplitterMarkdown Text Splitter

NLTK Text SplitterNLTK Text Splitter

Python Code Text SplitterPython Code Text Splitter

RecursiveCharacterTextSplitterRecursiveCharacterTextSplitter

Spacy Text SplitterSpacy Text Splitter

tiktoken (OpenAI) Length Functiontiktoken (OpenAI) Length Function

TiktokenText SplitterTiktokenText Splitter

Getting StartedGetting Started

AnalyticDBAnalyticDB

AnnoyAnnoy

AtlasDBAtlasDB

ChromaChroma

Deep LakeDeep Lake

ElasticSearchElasticSearch

FAISSFAISS

LanceDBLanceDB

MilvusMilvus

MyScaleMyScale

OpenSearchOpenSearch

PGVectorPGVector

PineconePinecone

QdrantQdrant

RedisRedis

SupabaseVectorStoreSupabaseVectorStore

TairTair

WeaviateWeaviate

ZillizZilliz

ChatGPT Plugin RetrieverChatGPT Plugin Retriever

Contextual Compression RetrieverContextual Compression Retriever

DataberryDataberry

ElasticSearch BM25ElasticSearch BM25

MetalMetal

Pinecone Hybrid SearchPinecone Hybrid Search

Self-querying retrieverSelf-querying retriever

SVM RetrieverSVM Retriever

TF-IDF RetrieverTF-IDF Retriever

Time Weighted VectorStore RetrieverTime Weighted VectorStore Retriever

VectorStore RetrieverVectorStore Retriever

Vespa retrieverVespa retriever

Weaviate Hybrid SearchWeaviate Hybrid Search

ConversationBufferMemoryConversationBufferMemory

ConversationBufferWindowMemoryConversationBufferWindowMemory

Entity MemoryEntity Memory

Conversation Knowledge Graph MemoryConversation Knowledge Graph Memory

ConversationSummaryMemoryConversationSummaryMemory

ConversationSummaryBufferMemoryConversationSummaryBufferMemory

ConversationTokenBufferMemoryConversationTokenBufferMemory

VectorStore-Backed MemoryVectorStore-Backed Memory

How to add Memory to an LLMChainHow to add Memory to an LLMChain

How to add memory to a Multi-Input ChainHow to add memory to a Multi-Input Chain

How to add Memory to an AgentHow to add Memory to an Agent

Adding Message Memory backed by a database to an AgentAdding Message Memory backed by a database to an Agent

How to customize conversational memoryHow to customize conversational memory

How to create a custom Memory classHow to create a custom Memory class

Motörhead MemoryMotörhead Memory

How to use multiple memory classes in the same chainHow to use multiple memory classes in the same chain

Postgres Chat Message HistoryPostgres Chat Message History

Redis Chat Message HistoryRedis Chat Message History

Async API for ChainAsync API for Chain

Loading from LangChainHubLoading from LangChainHub

LLM ChainLLM Chain

Sequential ChainsSequential Chains

SerializationSerialization

Transformation ChainTransformation Chain

Analyze DocumentAnalyze Document

Chat Over Documents with Chat HistoryChat Over Documents with Chat History

Graph QAGraph QA

Hypothetical Document EmbeddingsHypothetical Document Embeddings

Question Answering with SourcesQuestion Answering with Sources

Question AnsweringQuestion Answering

SummarizationSummarization

Retrieval Question/AnsweringRetrieval Question/Answering

Retrieval Question Answering with SourcesRetrieval Question Answering with Sources

Vector DB Text GenerationVector DB Text Generation

API ChainsAPI Chains

Self-Critique Chain with Constitutional AISelf-Critique Chain with Constitutional AI

BashChainBashChain

LLMCheckerChainLLMCheckerChain

LLM MathLLM Math

LLMRequestsChainLLMRequestsChain

LLMSummarizationCheckerChainLLMSummarizationCheckerChain

ModerationModeration

OpenAPI ChainOpenAPI Chain

PALPAL

SQL Chain exampleSQL Chain example

Getting StartedGetting Started

Defining Custom ToolsDefining Custom Tools

Multi-Input ToolsMulti-Input Tools

Tool Input SchemaTool Input Schema

ApifyApify

Arxiv APIArxiv API

Shell ToolShell Tool

Bing SearchBing Search

ChatGPT PluginsChatGPT Plugins

DuckDuckGo SearchDuckDuckGo Search

File System ToolsFile System Tools

Google PlacesGoogle Places

Google SearchGoogle Search

Google Serper APIGoogle Serper API

Gradio ToolsGradio Tools

Human as a toolHuman as a tool

IFTTT WebHooksIFTTT WebHooks

OpenWeatherMap APIOpenWeatherMap API

Python REPLPython REPL

RequestsRequests

SceneXplainSceneXplain

Search ToolsSearch Tools

SearxNG Search APISearxNG Search API

SerpAPISerpAPI

Wikipedia APIWikipedia API

Wolfram AlphaWolfram Alpha

Zapier Natural Language Actions APIZapier Natural Language Actions API

Agent TypesAgent Types

Custom AgentCustom Agent

Custom LLM AgentCustom LLM Agent

Custom LLM Agent (with a ChatModel)Custom LLM Agent (with a ChatModel)

Custom MRKL AgentCustom MRKL Agent

Custom MultiAction AgentCustom MultiAction Agent

Custom Agent with Tool RetrievalCustom Agent with Tool Retrieval

Conversation Agent (for Chat Models)Conversation Agent (for Chat Models)

Conversation AgentConversation Agent

MRKLMRKL

MRKL ChatMRKL Chat

ReActReAct

Self Ask With SearchSelf Ask With Search

CSV AgentCSV Agent

JiraJira

JSON AgentJSON Agent

OpenAPI agentsOpenAPI agents

Natural Language APIsNatural Language APIs

Pandas Dataframe AgentPandas Dataframe Agent

PlayWright Browser ToolkitPlayWright Browser Toolkit

PowerBI Dataset AgentPowerBI Dataset Agent

Python AgentPython Agent

SQL Database AgentSQL Database Agent

Vectorstore AgentVectorstore Agent

How to combine agents and vectorstoresHow to combine agents and vectorstores

How to use the async API for AgentsHow to use the async API for Agents

How to create ChatGPT CloneHow to create ChatGPT Clone

How to access intermediate stepsHow to access intermediate steps

How to cap the max number of iterationsHow to cap the max number of iterations

How to use a timeout for the agentHow to use a timeout for the agent

How to add SharedMemory to an Agent and its ToolsHow to add SharedMemory to an Agent and its Tools

LLMsLLMs

Chat ModelsChat Models

EmbeddingsEmbeddings

PromptTemplatesPromptTemplates

Example SelectorExample Selector

Output ParsersOutput Parsers

DocstoreDocstore

Text SplitterText Splitter

Document LoadersDocument Loaders

Vector StoresVector Stores

RetrieversRetrievers

Document CompressorsDocument Compressors

Document TransformersDocument Transformers

AgentsAgents

ToolsTools

Agent ToolkitsAgent Toolkits

How to use the async API for LLMsHow to use the async API for LLMs

How to write a custom LLM wrapperHow to write a custom LLM wrapper

How (and why) to use the fake LLMHow (and why) to use the fake LLM

How to cache LLM callsHow to cache LLM calls

How to serialize LLM classesHow to serialize LLM classes

How to stream LLM and Chat Model responsesHow to stream LLM and Chat Model responses

How to track token usageHow to track token usage

AI21AI21

Aleph AlphaAleph Alpha

Azure OpenAIAzure OpenAI

BananaBanana

CerebriumAICerebriumAI

CohereCohere

DeepInfraDeepInfra

ForefrontAIForefrontAI

GooseAIGooseAI

GPT4AllGPT4All

Hugging Face HubHugging Face Hub

Hugging Face Local PipelinesHugging Face Local Pipelines

Llama-cppLlama-cpp

ManifestManifest

ModalModal

NLP CloudNLP Cloud

OpenAIOpenAI

PetalsPetals

PipelineAIPipelineAI

PredictionGuardPredictionGuard

PromptLayer OpenAIPromptLayer OpenAI

ReplicateReplicate

RunhouseRunhouse

SageMakerEndpointSageMakerEndpoint

StochasticAIStochasticAI

WriterWriter

How to use few shot examplesHow to use few shot examples

How to stream responsesHow to stream responses

AnthropicAnthropic

AzureAzure

OpenAIOpenAI

PromptLayer ChatOpenAIPromptLayer ChatOpenAI

Connecting to a Feature StoreConnecting to a Feature Store

How to create a custom prompt templateHow to create a custom prompt template

How to create a prompt template that uses few shot examplesHow to create a prompt template that uses few shot examples

How to work with partial Prompt TemplatesHow to work with partial Prompt Templates

How to serialize promptsHow to serialize prompts

PromptTemplatesPromptTemplates

Example SelectorExample Selector

Output ParsersOutput Parsers