Javascript agents

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

LEGACY Langfuse v3 integration for LangChain (maintenance mode). For new projects use the current CallbackHandler from @langfuse/langchain: npm install @langfuse/langchain @langfuse/otel

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

LangChain adapters for Dawn agents, chains, tools, streaming, embeddings, and retry.

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 37 chains. 27 tools: attestation, wallet trust profiles (50 checks across 28 chains incl. Solana, XRPL, Bitcoin, Tron, Stellar, Sui

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. Memory firewall for any host that writes through it; runtime tool gates on Claude Code, OpenClaw, and Hermes.

LangChain tools and observability integrations for agent-context-kit

Extracts Langchain prompts and generates TypeScript types.

Implementation of the AG-UI protocol for LangChain.

Cloudflare integration for LangChain.js

LangChain.js chat model adapter for OpenAI Codex SDK.

LangChain useStream adapter for assistant-ui

LangGraph checkpoint saver backed by Ironflow entity streams — durable agent state with crash-resume

The LangServe adapters for nlux React, the React JS library for building conversational AI interfaces.

Angular integration for LangGraph & LangChain

MCP To LangChain Tools Conversion Library

n8n community node: Oracle OCI Generative AI (OpenAI-compatible chat) para AI Agent / chains

LangGraph

AgentLair adapter for LangChain.js — issue per-agent AATs, attach Bearer tokens to tool calls, emit audit envelopes, and sign outbound HTTP requests with RFC 9421 / Web Bot Auth.

Azure OpenAI Chat Model and Embeddings with MS OAuth2 for n8n

LangChain tool adapters for Copass — drop-in discover/interpret/search tools for LangChain agents

OpenInference-compatible observability for AG-Kit

Axon MCP server — local non-custodial trading terminal for AI agents. ~35 typed Model Context Protocol tools for Hyperliquid perps, Uniswap V3 spot, Aave V3 lending, GMX v2 perps across Arbitrum, Base, Avalanche, Polygon, Optimism. Drop-in for Claude Code

The **Illuma agent runtime** — the TypeScript engine behind Illuma's agents: graph orchestration, streaming event handling, tool execution, provider adapters, subagent delegation, and message/context management for single-agent and multi-agent runs.

Adapter that wraps a LangGraph agent into the runtime-neutral `Agent` contract from `@ngaf/chat`. The Angular equivalent of LangGraph's React `useStream()` hook — signal-driven access to messages, status, tool calls, interrupts, subagents, regenerate, and

n8n community node: DeepSeek R1/Reasoner Chat Model with proper reasoning_content handling for tool calls. Fixes the 'Missing reasoning_content field' error when using AI Agent with tools. Connect this as the Chat Model sub-node to your AI Agent.

You don't need this source code unless you want to modify the package. If you just want to use the package run:

LaunchDarkly AI SDK LangChain Provider for Server-Side JavaScript

Security Proxy for Model Context Protocol — Govern any MCP tool call with ABS Core NRaaS (Non-Repudiation as a Service)

Production payment infrastructure for AI agents — real Stripe/Paystack/Lightning rails, autonomous shopping with escrow, Agent Credit Score (300-850), Ed25519 identity, behavioral finance, Merkle integrity, anomaly detection, human-in-the-loop approval. B

LangChain.js integration for typia