Python agents

Vaultak runtime security callback handler for LangChain agents

LangChain integration for VDM Nexus — signed-inference ChatModel that pays per call via x402 on Solana.

An integration package connecting VDMS and LangChain

LangChain integration for vecr-compress: deterministic retention-guaranteed LLM context compression.

An integration package connecting Vectara and LangChain

An integration package connecting Vectorize and LangChain

An integration package connecting VeDB and LangChain

LangChain integration for Velatir - AI governance, compliance, and human-in-the-loop workflows

LangChain VectorStore for VelesDB: The Local AI Memory Database. Microsecond RAG retrieval.

LangChain integration for Verathos — verified LLM inference on Bittensor

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Adapter to integrate LangChain with Vercel AI SDK SSE streaming

LangChain tools for VEROQ Intelligence API

LangChain integration for ViscribeAI image analysis - AI-powered tools for image understanding

Vision tools for langchain

Visualization and debugging tool for LangChain workflows

VM-X AI Langchain Python SDK

langchain intergration for Volcengine veDB for MySQL and RDS for MySQL

LangChain VectorStore for VolcEngine RDS for MySQL native vector indexing (HNSW)

An integration package connecting VoyageAI and LangChain

LangChain integration for the Web2Agent Protocol — turn any W2A-enabled website into LangChain tools

LangChain tools for waveStreamer — What AI Thinks in the Era of AI. Get waveStreamer into every LangChain-based agent.

An integration package connecting Weaviate and LangChain

A widget to run in Jupyter Notebook.

Wipro AI integration for LangChain

An integration package connecting Writer and LangChain (includes deprecated features such as PDFParser and WriterTextSplitter)

LangChain Document Loader for WTM API — convert any webpage to Markdown

WZRD velocity-aware model selection, inference, and earn-loop tooling for LangChain.

x402 payment protocol integration for LangChain - enable AI agents to pay for APIs with USDC

LangChain tool for x402 service discovery — find any x402-payable API endpoint at runtime

LangChain toolkit for 2,400+ x402 pay-per-call APIs — discover, call, and manage with no wallet setup

LangChain integration for Xache Protocol - verifiable AI agent memory

An integration package connecting xAI and LangChain

LangChain integration for Xbaza Belarus Job Market API

在LangChain中流畅地使用讯飞星火大模型

langchain extension python package

An integration package connecting Xinference and LangChain

LangChain integration with xParse Parse API for intelligent document parsing

An integration package connecting YDB and LangChain

An integration package connecting You.com and LangChain

YouTube loader for LangChain using yt-dlp

An integration package connecting YugabyteDB and LangChain

LangChain integration for the Yutori API — Navigator browser control, browser automation, web research, and monitoring

A LangChain integration tool that provides reliable web scraping capabilities at any scale using ZenRows' Universal Scraper API

ZeroDB vector store for LangChain - AI-native vector database with free embeddings, semantic search, and RAG support. Pinecone alternative.

An integration package connecting ZeusDB and LangChain.

LangChain interface for Zhipu AI

Implementation of LangChain for ZhipuAI(Just for coding exercise)

A retriever for the langchain framework, connecting to the zotero API. Utilizes pyzotero.

ZeroTrustedAI library

LangChain integration for Zunno LLM and Embeddings

Building applications with LLMs through composability

将阿里云灵积模型（通义千问等）集成到LangChain

LangChain Sandbox

将智谱AI集成到LangChain

A unified wrapper for various LLM providers using LangChain.

Building applications with LLMs through composability

Best of 4 worlds [LangChain, LiteLLM, Instructor, Rich] in 1 helper + 1 client with easy debugging.

langchain for hyperclovax written by xeexu

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The LangChain Hub API client

LangChainKit makes it easier to work with Qwen3 models via vLLM, and simplifies the process of prompting LLMs to return structured outputs using LangChain and Langfuse.

Building applications with LLMs through composability

Building applications with LLMs through composability

Client library to connect to the LangSmith LLM Tracing and Evaluation Platform.

Reusable prompt viewer module

DSPy-powered prompt optimization plugin for LangCore — auto-optimize extraction prompts with MIPROv2 and GEPA

LangCore hybrid provider — combines deterministic rule/regex extraction with LLM fallback for cost savings

LangCore provider plugin for LiteLLM

RAG query parsing plugin — parse natural language queries into semantic terms and structured filters using LLMs

LangEvals Haystack evaluator

LangEvals OpenAI moderation evaluator for LLM outputs.

LangEvals Ragas evaluator

LangExtract provider plugin for Anthropic Claude

LangExtract provider plugin for Azure OpenAI

LangExtract provider plugin for AWS Bedrock

Anthropic Claude provider plugin for LangExtract

LangExtract provider plugin for LiteLLM

LangExtract provider plugin for llama.cpp

OpenAI and Azure OpenAI provider plugin for LangExtract

LangExtract provider plugin for VLLM

Governance components for Langflow — policy enforcement, trust routing, audit logging, and compliance checking for visual AI flows

Agent for interacting with Langfuse Observability API

Langfuse integration for Haystack

Custom DSPy LM class for token usage tracking with Langfuse

A client library for accessing langfuse

Langfuse trace analysis agent with built-in web console

langfuse-pydantic-ai

Building stateful, multi-actor applications with LLMs

LangGraph A2A server framework with GenericAgentExecutor and pluggable agents

LangGraph to Google A2A Protocol Adapter