Langchain agents

Real-time observability for AI agents. See every thought, tool call, and error — live.

Agent runtime tracing and deterministic replay for LLM applications

TraceRazor LangGraph/LangChain callback - token efficiency auditing

Signed execution receipts for every LangChain model and tool call.

LangChain tools for the TradeOdds REST API — drop-in agent integrations for quantitative pattern analysis.

Lightweight structural RAG library — index documents as trees, query without a vector DB.

Python LLM agent framework with multi-model support (OpenAI, Anthropic, Gemini, DeepSeek), tool calling, session management, A2A/MCP/AGUI protocols, and FastAPI server integration

Library to systematically track and evaluate LLM based applications.

Library to systematically track and evaluate LangGraph based applications.

Library to systematically track and evaluate LLM based applications.

Library to systematically track and evaluate LLM based applications.

LangChain integration for TrustRAG — trust-verified retrieval + LangGraph multi-hop agent with trust budget

Truthlocks MAIP integration for LangChain — auto-generate cryptographic receipts for every chain and agent action

LangChain adapter for TruthStack supplement safety API. Check drug interactions, get evidence, search compounds.

TuringPulse SDK integration for LangChain

TuringPulse SDK integration for LangGraph

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Twitter Langchain Toolkit

Safety shield for LangChain — screen agent tool calls before execution

LangGraph checkpointer backed by Typesense

Adapters for uAgents to integrate with LangChain, CrewAI, MCP, and A2A

Universal plugin for uAgents: connect LlamaIndex, CrewAI, LangChain, OpenAI, etc.

UCode agent execution SDK – LangGraph, tools, MCP, checkpoints

Python SDK that enables developers to build and deploy LangGraph agents to the UiPath Cloud Platform

LangChain-compatible chat models and embeddings for UiPath's LLM services

ULMEN extension for LangGraph — compressed checkpoints, token-efficient context, binary streaming

A modular, production-ready Retrieval-Augmented Generation (RAG) platform with multi-vector database support

LangChain tools for the Unbrowse CLI — reverse-engineer any website into reusable API skills.

Unified Agent SDK

Unified Agent Protocol — Universal interoperability layer for AI agents and tools

UNIHODL Agent Handoff SDK — pass human session context to AI agents (Claude, Gemini, OpenAI, LangGraph). Decision-continuity protocol.

Support for Unity Catalog functions as LangChain tools

Framework-agnostic A2A agent with pluggable Providers & Frameworks (MCP, LangChain, LangGraph, CrewAI, BeeAI, AutoGen, watsonx.ai)

The Translation Layer: Compile Universal Agents to AWS, LangGraph, MCP, or UAA Kernel.

An unofficial Formosa Foundation Model API client implementation compatible with LangChain and OpenAI

A ready-to-use agent for UTCP tool calling

VAP LangChain integration - Execution control for agents calling paid APIs

Secure credential management for AI agents

Record and replay LLM interactions for langchain

Encrypted Vector Database for Secure and Fast ANN Searches with LangChain

Velixar AI memory retriever and memory module for LangChain

Veritell LangChain SDK

LangChain callback handler for Viatoris — emit a signed Viatoris receipt for every LangChain tool call

VideoSDK Agent Framework plugin for LangChain and LangGraph

Secure sandboxed code execution and agent toolbox

VM-X AI Langchain Python SDK

Python SDK for the Voidly Agent Relay — E2E encrypted agent-to-agent communication

LangChain tools for Voidly Pay — drop-in agent-to-agent payments. USDC-backed, x402, signed envelopes. Live on Base.

Vystak framework adapter — generates LangChain/LangGraph agent code

LangChain tools for waveStreamer — a multi-agent builder-operator platform. Get waveStreamer prediction, research, and survey capabilities into every LangChain agent.

LangGraph-orchestrated AI agent framework for multi-domain entity management

Web Structured Data Extraction Agent

LangChain integration for WebCrawlerAPI

CLI coding agent powered by LangGraph — intent routing, task decomposition, hierarchical memory, and 11 built-in tools

The Wise Agent Toolkit enables the integration of various AI frameworks and libraries with Wise APIs to create and manage transfers programmatically.

AI-powered document transcription and semantic chunking for RAG pipelines

A config-driven, plug-and-play worker agent template built on LangGraph + FastMCP.

LangChain and LangGraph integration for Wren AI Core — attach a CLI-prepared Wren project to your agent in three lines.

wxai-langchain enables the use of IBM watsonx.ai in LangChain projects. This is not supported by IBM.

Framework-agnostic payer for the x402 HTTP payment protocol. Works with LangChain, CrewAI, AutoGen, LangGraph, or any other agent framework.

x402 payment integration for LangChain - Enable autonomous AI agent payments

26 AI agent tools in 2 lines. Web search, price feeds, Hive memory, on-chain tx simulation, LLM routing. Free tier, no credit card.

XAT signing for LangChain -- every tool call gets an Agent-Signature header. OpenAPI x-agent-trust.

xShieldAI / AEGIS DAN gate + budget guard for CrewAI agents — pre-execution governance via @xshieldai/aegis

xShieldAI / AEGIS DAN gate callback for LangChain agents — pre-execution governance via @xshieldai/aegis

LLM related tools

Convert YAML workflow files to LangGraph implementations

The @yeagerai Agent is used to create your custom LangChain Agents on-the-fly.

Useful classes extending langchain library

LangChain tools for policy-gated YieldAgentX402 execution — discovery, policy preview, receipt verification via the live MCP gateway. Proof: 16 tools, 18 chains, no custody, signed receipts.

helper functions for Ollama with Langchain

LangGraph utilities for Streamlit - StreamlitLanggraphHandler and more

ZARQ risk intelligence tool for LangChain agents — trust scores, crash probability, and structural risk for 205 crypto tokens.

LangChain integration for Zeta MLX

Private AI document assistant — local RAG pipeline with web GUI. Zero cloud. Supports local, NFS, SMB and object storage.

Zeus AI Platform - Next-generation AI Agent Development Platform

Chinese language processing library

A multi-framework AI agent SDK for the Zynd AI Network. Supports LangChain, LangGraph, CrewAI, PydanticAI, and custom agents with a unified invoke() interface. Provides Ed25519 identity, agent discovery via agent-dns, A2A protocol communication, agent cards, and x402 micropayments.

Conversation memory SDK — query meeting transcripts, decisions, and action items from any AI agent or application

ACP (Agent Client Protocol) server for DeepAgents - enables IDE integration with Zed, JetBrains, and other ACP clients

Nuggets identity verification toolkit for LangChain.js

Repository containing the LangchainJS toolkit for creating powerful web3 agents.

MCP server for n8n with tools for generating workflows, linting, diagnosing failed executions, and driving live n8n instances. Built for AI agents.

Agent instrumentation SDK for forensic auditing — auto-signing, hash-chaining, LangChain adapter

LangChain TypeScript SDK - Human-in-the-Loop validation via Loopman platform

n8n community node for DeepSeek chat models (Pro / Flash) with reasoning_content (Chain-of-Thought) support, usable as a LangChain sub-node inside the AI Agent and Basic LLM Chain.

CodeWave - AI-Powered Commit Intelligence. Multi-agent system for comprehensive code quality evaluation using 7-pillar methodology.

A programmable Solana wallet SDK for AI agents — LangChain, AutoGen, ElizaOS compatible

Framework for building AI agents through natural language and taking them from experiment to production at scale

Health monitoring and cluster management for AI agents. Monitor soul drift, manage multi-agent clusters, and ensure agent identity preservation.

JavaScript/TypeScript SDK for LangVoice Text-to-Speech API with AI agent integrations

Agentic workflow SDK — proof cards, contracts, human handoffs, MCP/A2A

TypeScript/Node.js client for dyolo-kya: cryptographic chain-of-custody for recursive AI agent delegation

On-chain AI safety infrastructure for autonomous agents. Encrypts actions client-side, submits to Chromia blockchain, and gets AI safety verdicts before execution.

Persistent memory for AI agents — JavaScript/TypeScript client for Cathedral

The open-source circuit breaker and accountability layer for multi-agent AI pipelines. Trace every action. Explain every decision. Short-circuit before the damage propagates.

LangGraph adapter package for AgentLedger Runtime.

A TypeScript CLI for packaging, installing, and running LangGraph workflow templates with manifest-based distribution and bundled OpenCode execution assets.