Langchain agents

LangChain Agent - NEAR Liquidator

Build LangChain Tool: NEAR Price & Market Data

LangChain BaseTool to read access keys on NEAR Protocol

LangChain Chain - NEAR Token launch

LangChain Tool - NEAR update wallet

LangChain Tool - NEAR upgrade key

LangChain tool to verify NEAR Protocol accounts

LangChain tool to verify NEAR Protocol wallets

LangChain Agent - NEAR Yield Farmer

LangChain Chain - NEAR Yield farming

LangChain integration for Nebius AI Studio

An integration package connecting Neo4j and LangChain

An integration package connecting Netmind and LangChain

An integration package connecting NexaAI and LangChain

Langchain-Nexus is a Python library enabling easy integration with diverse language models like ChatGPT and GLM through a unified interface.

An integration package connecting Nia AI and LangChain

An integration package connecting Nimble and LangChain

An unofficial LangChain based Retriever built using concepts from the Titans Neural Memory

LangChain compliance middleware with hash-chained audit trails for EU AI Act readiness

An integration package connecting Nomic and LangChain

OS-enforced sandbox backend for LangChain Deep Agents using Landlock (Linux) and Seatbelt (macOS)

LangChain agent middleware that routes model calls through the NoPII PII-tokenization proxy

LangChain tools for x402 payments - let agents pay for APIs autonomously

Make Anthropic Model Context Protocol (MCP) tools compatible with LangChain and LangGraph agents.

A LangChain agent middleware that provides a plain-text scratchpad/notepad.

LangChain Tools & Toolkit for Notion (search pages, get page, create page).

LangChain tools for read/write access to Notion via the official API.

Novita sandbox backend integration for LangChain Deep Agents

Nuggets authority middleware for LangChain / LangGraph

An integration package connecting NVIDIA AI Endpoints and LangChain

This package is deprecated. Please use langchain-nvidia-ai-endpoints instead.

An integration package connecting TritonTensorRT and LangChain

LangChain integration for the NWO Robotics API — the only API enabling AI agents to control physical robots

LangChain integration for the Open Agent Communication Protocol

Integration package connecting ObjectBox and LangChain

An integration package connecting OceanBase and LangChain

An integration package connecting OCI and LangChain

Modular, vision-LLM-powered chain to convert image and PDF documents into clean Markdown.

LangChain integration for Octen Web Search

LangChain tools for OilPriceAPI — real-time oil, gas, and commodity prices

An integration package connecting Ollama and LangChain

The most reliable and cost-effective web search, scraping and crawling API for AI. Build intelligent agents that can search, scrape, analyze, and structure data from any website.

LangChain integration for OneBrain — persistent AI memory layer

LangChain toolkit for Microsoft Fabric OneLake — workspace, file, table, directory, and item operations powered by the Fabric MCP Server.

LangChain integration for OneLy x402 marketplace - AI agents can buy and sell APIs

LangChain tools for OneShot — commercial actions for AI agents

An integration package connecting OpenAI and LangChain

An integration package connecting OpenAI and LangChain

A bridge to use Langchain output as an OpenAI-compatible API.

Wrapper for Langchain & OpenAI api calls which use OpenAI headers to deal with TPM & RPM.

LangChain chat model wrappers that expose reasoning/thinking content in ag-ui-langgraph compatible format

A LangChain integration for OpenDataLoader PDF

openGauss vector store integration for LangChain

An integration package connecting OpenGradient and LangChain

One-line OpenMemory integration for LangChain with persistent, temporal, local-first memory.

An integration package connecting OpenRouter and LangChain

An integration package connecting Opensearch and LangChain

OpenTerms adapter for LangChain — sign and emit ORS v0.1 receipts for every tool call.

Proof-of-Time tools for LangChain agents — cryptographic temporal attestation for DeFi transactions and general LLM audit-trail timestamping

LangChain-OpenTutorial(https://github.com/LangChain-OpenTutorial/LangChain-OpenTutorial) Packages

LangChain openwebui

An integration package connecting OpperAI and LangChain

An integration package connecting Oracle Database and LangChain

LangChain Tool - Orderly Integration

LangChain integration for Oris: Compliant payment rails and KYA infrastructure for autonomous AI agents.

LangChain tools for Orizn Visa API — 39,585 passport-destination pairs in 15 languages

Oso observability integration for LangChain agents

Langchain Document loader for Outline

LangChain document loader for oxidize-pdf — fast, Rust-powered PDF parsing with element-disjoint RAG chunking

Oxylabs integration package for LangChain

An integration package connecting PaddleOCR and LangChain

LangChain integrations for Pangea

langchain-pangu

A LangChain integration for Parallel Web AI services, including Chat and Search.

ParallelWeb integration for LangChain

LangChain Tool - Paras Integration

LangChain integration for PathCourse Health — autonomous agent inference with USDC billing on Base L2

PayClaw tools for LangChain and LangGraph — give your agent a USDC wallet on Base it can actually spend. Gasless via Circle Paymaster.

LangChain integration for PayLobster - AI agent payment escrow on Base

LangChain integration for Parallel Context-of-Experts Decoding (PCED) for RAG pipelines

Generate clean, readable PDFs from raw text or LLM output

LangChain document loader for pdfmux — self-healing PDF extraction

An integration package connecting Perigon and LangChain

Access control tools and retrievers for LangChain.

LangChain toolkit for PermitBase — U.S. residential building permit data API (1980–present)

An integration package connecting Perplexity and LangChain

LangChain VectorStore for hybrid search with pgvector (dense) and pg_textsearch (BM25)

An integration package connecting Pinecone and LangChain