npm agents

PostBridge postal tools for LangChain JS and LangGraph — send physical letters to 5 countries from any LangChain agent.

Google Generative AI integration for LangChain.js

An implementation of a multi-agent swarm using LangGraph

OpenTelemetry instrumentation for LangchainJS

Shared LangChain agent utilities for Stream Chat

Various implementations of LangChain.js text splitters

LangChain AWS integration

Client library for connecting to the LangChain Hub.

MistralAI integration for LangChain.js

Langfuse integration for LangChain

Core types and classes for Google services.

Cohere integration for LangChain.js

Sample integration for LangChain.js

Google auth based authentication support for Google services


Core functions and utilities for Langfuse packages

React integration for LangGraph & LangChain

Google integrations for LangChain.js

Groq integration for LangChain.js

Langfuse OpenTelemetry export helpers

The **[AI SDK](https://ai-sdk.dev)** LangChain adapter provides seamless integration between [LangChain](https://langchain.com/) and the AI SDK, enabling you to use LangChain agents and graphs with AI SDK UI components.

Scaffold a DCP-AI governed LangChain agent project

Langfuse instrumentation methods based on OpenTelemetry

Library with base interfaces for LangGraph checkpoint savers.

A modular SDK for building on-chain autonomous agents using Hashgraph Online Standards, including HCS-10 for agent discovery and communication. https://hol.org

Ollama integration for LangChain.js

Weaviate integration for LangChain.js

GigaChat integration for LangChain.js

Langfuse API client for universal JavaScript environments

[Agentic applications](https://langchain-ai.github.io/langgraph/concepts/agentic_concepts/) give an LLM freedom over control flow in order to solve problems. While this freedom can be extremely powerful, the black box nature of LLMs can make it difficult

LangChain.js support for Google Vertex AI

Vue integration for LangGraph & LangChain

SDK for integrating Braintrust with LangChain.js

The official command-line interface for LangGraph.js, providing tools to create, develop, and deploy LangGraph.js applications.

LangChain integration for Pinecone's vector database

LangChain.js runtime adapter for VAT agents

An implementation of a computer use agent (CUA) using LangGraph

OpenInference Instrumentation for LangChain.js

Use Aerostack workspace tools as LangChain.js tools

Svelte integration for LangGraph & LangChain

SAP Cloud SDK for AI is the official Software Development Kit (SDK) for **SAP AI Core**, **SAP Generative AI Hub**, and **Orchestration Service**.

AI/ML workflow nodes — LLM completion, LangChain, agent loops, and vector search.

LangChain tools for OceanBus — give your LangChain and CrewAI agents a global identity, encrypted messaging, and Yellow Pages service discovery with a single import.

Coinbase AgentKit core primitives

xAI integration for LangChain.js

Deepseek integration for LangChain.js

LangChain.js integration for the Qdrant vector database

AgentFolio integration for LangChain — agent identity, trust scores, and marketplace access

OpenRouter integration for LangChain.js

LangChain integration for Agent Tool Protocol

Modal Sandbox backend for deepagents

Langfuse integration for OpenAI SDK

Sample integration for LangChain.js

Web-based authentication support for Google services

Langchain Toolkit extension of CDP Agentkit

Verification, observability, and quality scoring utilities for LangChain tool-calling agents. Includes confidence scoring, data freshness validation, numerical consistency checks, ticker symbol hallucination detection, error categorization, token tracking

LangChain tool-set for GenZAgents work receipts — issue, countersign, verify, lookup

Agent-side ATLAS Protocol tooling for LangChain and MCP. Speak ATLAS from any agent runtime.

Microsoft Agent 365 SDK LangChain instrumentation extensions for telemetry and observability

Tavily integration for LangChain.js

LangChain.js support for Google Vertex AI Web

LangChain.js tools for the hosted You.com MCP server

LangChain adapter for AG-Kit agents

Opik TypeScript and JavaScript SDK integration with LangChain

n8n Workflow Automation Tool

Cerebras integration for LangChain.js

LangGraph

TypeScript SDK for AWS Bedrock AgentCore

Sandboxed JavaScript REPL for deepagents using QuickJS (WASM)

Exa integration for LangChain.js

LangChain toolkit for SEC EDGAR data analysis

The official Node.js/TypeScript SDK for [Metorial](https://metorial.com) - Connect your AI agents to any MCP server with a single line of code. Deploy tools like Slack, GitHub, SAP, and hundreds more without managing infrastructure.

IBM Generative AI Node.js SDK (Tech Preview)

Reminix agents for LangChain - serve AI agents as REST APIs

Multi-framework AI agent SDK for the Zynd AI Network. Ed25519 identity, agent discovery, A2A protocol communication, agent cards, x402 micropayments, and one-shot deploy via zynd-deployer.

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Virtual File System sandbox backend for deepagents

Baidu Qianfan integration for LangChain.js

Shared scripts for LangChain.js

<p align="center"> <img src="https://raw.githubusercontent.com/cacheplane/dawnai/main/docs/brand/dawn-logo-horizontal-black-on-white.png" alt="Dawn" width="180" /> </p>

Runtime security middleware for LLM agents — prompt injection, tool misuse, and memory poisoning defense

Daytona Sandbox backend for deepagents

LangGraph

Aurracloud AgentKit core primitives, forked from Coinbase

AI Coding Agent using LangChain with SQLite checkpoint - React project generation and management

TypeScript utilities for building LibreChat agent workflows. The package provides graph orchestration, streaming event handling, tool execution, provider adapters, and message formatting for single-agent and multi-agent runs.

LangChain integration helpers for @fluidframework/tree-agent

Tool-call reliability layer for LangChain and custom agent runtimes.

Create a LangGraph chat app with one command

LangChain.js tools wrapping Toolstem MCP servers (Finance + SEC EDGAR) with x402 USDC micropayments.

A toolkit for working with Knock in Agent workflows.

MCP server for InsumerAPI — condition-based access infrastructure. Send a wallet and conditions, get a signed boolean across 38 chains. 27 tools: attestation, wallet trust profiles (49 checks across 27 chains incl. Solana, XRPL, Bitcoin, Tron, Stellar, Su

The LangChain adapters for nlux, the javascript library for building conversational AI interfaces.

Tool library for TypeScript AI agents: web, data, file, and integration tools (HTTP, scraping, CSV, XML/JSON, Slack, databases).

Agent middleware for atrib. Interceptor plus framework adapters for MCP attribution. Supports raw SDK, Claude Agent SDK, Cloudflare Agents, Vercel AI SDK, LangChain JS.

Nomic integration for LangChain.js

Trustworthy memory and security for AI agents. Recall debugging, review queue, OpenClaw session capture, and memory poisoning defence for Claude Code, Codex, OpenClaw, LangChain, and MCP agents.

LangChain tools and observability integrations for agent-context-kit