Langchain agents

AI agent observability SDK for agencies

Orchestrator Agent Node for n8n — intelligent multi-output classifier with LLM routing

TypeScript SDK for LangSmith Managed Deep Agents.

LangChain.js integration for PostgreSQL pgvector

Neo4j integrations for LangChain.js

A Unified Virtual Filesystem For AI Agents

Sanctum Runtime SDK — the runtime trust boundary for autonomous systems. Signed action tokens, blast-radius scoring, source-trust classification (indirect-prompt-injection defense), dual-approver + auto-escalate, policy replay, SOC2 + NIST AI RMF evidence

Node.js / TypeScript SDK for the Agent Event Protocol (AEP) — framework-neutral observability for multi-agent AI systems, with LangChain.js / LangGraph auto-instrumentation.

基于 LangGraph 的通用 AI 智能体 SDK，提供声明式和图构建器双层 API

Framework adapters and observability exports for TraceGate.

Claude Code skill pack for LangChain 1.0 + LangGraph 1.0 (Python) - 34 skills covering chains, agents, RAG, middleware, checkpointing, HITL, streaming, and production patterns

Multi-agent simulation harness that stress-tests conversational AI agents with adversarial synthetic users, then grades every transcript with auditable decision-tree judges.

Runtime guardrails for TypeScript AI agents — prevents duplicate tool calls, enforces per-user LLM cost budgets, and gates irreversible actions before they execute. Works with Mastra, Vercel AI SDK, LangGraph.js, and OpenAI Agents SDK.

LangChain integration for rezunate-llm-sdk

Read-only LangChain tools for RustChain — let any agent query the hardware-attested agent economy.

A behavioral-interview simulator and coach that runs in your terminal.

LangGraph drop-in adapter for Wayforth — one import, one init, execution via proxy

LangChain adapter for emitting AeroGraph traces from agent workflows.

Nuggets authority middleware for LangChain.js / LangGraph.js

AgentInsight integration for LangChain

ChainPe agent tools — drop-in x402 pay + discover tools for the Vercel AI SDK and LangChain, on Avalanche C-Chain.

LangGraph checkpointer adapter for MemForks — anchors agent state on Sui with branch-aware memory.

LangGraph middleware for AgentTrace - automatic tracing of node executions

Convert agent execution traces into reusable hybrid workflows (LangGraph / n8n).

Code-red TUI dispatcher for AI coding CLIs (Claude Code, OpenCode, Codex, Antigravity) with LangGraph workflow monitoring.

Deterministic record/replay of LLM and tool calls for AI agents, captured into human-readable cassettes.

LangChain tools for Atomic Mail register/help/JMAP operations

LangChain integration for FunASR (SenseVoice / Paraformer / Fun-ASR-Nano) speech-to-text

LangChain integration for JarvisClaw AI API (x402 USDC payments supported)

Upstash Box sandbox integration for Deep Agents

Open-source terminal AI agent for coding, deep research, automation, and multi-platform task execution.

LangChain & LlamaIndex tools for the Orbis API Marketplace — pay-per-call access to 8,000+ APIs via x402 USDC micropayments

Define your AI agent team in one YAML file — get a LangGraph supervisor, a live agent-network UI, an auto-generated MCP server, and a behavioral eval harness. TypeScript, batteries included.

Tenant isolation and per-tenant usage metering for LangGraph.js checkpointers and stores

Frontal Agents SDK — define, deploy, and observe AI agents with LangChain, LangGraph, and Vercel AI SDK integration

An integration package connecting Keenable web search and LangChain

OpenViking memory adapters for LangChain.js and LangGraph.js — retriever, store, agent tools, chat history, and context middleware.

LangChain.js integration for Prefactor observability

Deno Sandbox backend for deepagents

Drop-in audit/compliance callback handlers for LangChain, LangGraph, CrewAI, AutoGen, Mastra, PydanticAI, and Microsoft Agent Framework. Streams events into the Ujex hash-chained audit ledger (IETF draft-sharif-agent-audit-trail-00). Resolves LangChain RF

LangGraph/LangChain framework wrapper for obs-unified Agent Action Graph

Zod v4-first LangGraph StateGraph wrapper with standardized node schemas, hooks, logging, checkpointing, test helpers, and resume support.

LangGraph.js checkpointer for PerSQL — durable agent state in an isolated SQLite database per agent

Apply Digital's AI coding assistant CLI — a Claude Enterprise harness for Apply Digital developers with BMAD support, multi-agent orchestration (Claude, Gemini, OpenCode), and secure Google SSO via Anthropic.

Papaya AI agent trace capture SDK for production apps.

Real-time observability and auto-debugging toolkit for AI agents

Semantic diff engine for AI agent behavior — find the exact decision fork between two runs

LangChain tools for Bolyra mutual ZKP authentication and SD-JWT delegation

INSPIRE HEP tools and API wrapper for LangChain.

LangChain tool for Skim — clean web reader for AI agents. Card plan with API key (free tier) or x402 wallet pay-per-call ($0.002 USDC on Base).

SecureVector SDK for LangChain — brings the local threat monitor's three controls (tool-call permissions, secret/data-leak detection, threat detection) to every LangChain tool call, with tamper-evident audit logging.

LangChain tools for Atlassian Jira and Confluence Cloud — direct REST calls, no MCP, proxy-aware. Extracted from Jarela.

LangChain tools for Atlassian Jira Align (portfolio / SAFe agile) — direct REST calls, no MCP, proxy-aware. Extracted from Jarela.

LangChain tools for the GitHub REST API — direct REST calls, no MCP, no gh CLI, proxy-aware. Extracted from Jarela.

n8n community node for the Google Gemini Chat Model, built on @intrvls/langchain-google-genai (the @google/genai-based port of @langchain/google-genai)

AgentMetrics observability integration for LangChain.js

Native LangChain BaseChatModel adapters for the Claude Code OAuth subscription (Anthropic) and opencode/Zen — no Pi, no API key.

Adapter LangChain.js do Riv — tools prontas (riv_authorize, riv_get_activity) e guard determinístico para tools de pagamento.

FULL self-hosted edition of the loomcycle n8n nodes — superset of @loomcycle/n8n-nodes-loomcycle. Adds the langchain-based AI-Agent Tool sub-nodes (Memory / Channel / Sub-Agent / MCP Server Tool), SSE-push triggers, and the Run 'Wait for Completion' op th

The language-agnostic governance-gate sidecar — govern a non-MCP agent runtime (LangGraph, CrewAI, AutoGen) by remoting each native tool call through the Action Kernel over a thin NDJSON-RPC seam. The reusable spine of Lodestar's runtime-adapter epic.

AgentMetrics observability integration for LangChain agents

Dee Mood Music for LangChain Agents — emotion-regulating music tools for AI agents

Govern a LangGraph agent's native tool calls with Lodestar — the thin native hook that remotes each tool call through the Lodestar Action Kernel over NDJSON-RPC (ADR-0024).

TypeScript SDK for LocusGraph memory system with LangChain integration

LangChain adapter for the Radius AI Agent Toolkit

AI agent security & MCP security middleware — prompt injection detection, AI firewall, runtime guardrails & data-loss prevention for LLM tool calls. 8-layer defense against data exfiltration & dangerous commands. Zero dependencies. SDK + OpenClaw plugin.

LangChain and LangGraph integration for animus-sdk — AnimusNode, AnimusRunnable, LCEL support

AgentShield SDK — instrument AI agents and capture execution events for the AgentShield Runtime Control Plane

Namespace alias for `langchain-ceki` — install the real package.

OKF-aware virtual filesystem backend for LangChain Deep Agents (Open Knowledge Format).

LangChain tools for the GhostCrawl web data API.

LangChain tool for Ceki — real Chrome sessions for AI agents

Husk sandbox integration for Deep Agents

SecureVector SDK for LangGraph — brings the local threat monitor's three controls (tool-call permissions, secret/data-leak detection, threat detection) to every LangGraph tool call, with tamper-evident audit logging.

SemantixRAG v2.0 — AI-Native Data Platform with GraphRAG, Compliance, and Observability

LangChain JS adapter for `@mpilot/tools`. Converts the framework-agnostic Concierge registry into `StructuredToolInterface[]` ready for `model.bindTools(tools)` or any LangChain agent toolset.

LangChain (JS) tools for Telaro. Drop these into any LangChain agent — OpenAI, Anthropic, Gemini — to query trust scores, gate capital delegation, and (optionally) auto-record actions on Solana.

OpenBox governance community node for n8n

LangChain + LangGraph integration for Anansi — retriever, memory tools, and graph-state memory annotation

The debugger for AI agents — add 2 lines, replay every run, get the plain-English root cause and exact fix in 30 seconds.

OpenGAP — the Git Agent Protocol: a framework-agnostic, git-native standard for defining AI agents

Multi-agent YAML workflow engine — 211 AI roles, auto DAG parallelism, zero code. One sentence → multiple AI roles collaborate → complete plan in minutes. 10 LLM providers, 7 need no API key.

Aroha ↔ LangChain/AutoGen/Semantic Kernel bridge — use Aroha as transport for any agent framework

Capsulate tools for AI agent frameworks — drop-in sandbox tools (launch / run code / files / computer-use) for the Vercel AI SDK, LangChain, LlamaIndex, and CrewAI.

Connect any AI agent to a live Skyward world over the Model Context Protocol. Framework-neutral: Claude, Cursor, Cline, the OpenAI Agents SDK, LangChain, and more.

ACA-governed checkpointer for LangGraph.js — adds source_tier, provenance, namespace isolation, and audit trail to LangGraph state

Decision records for AI agents — log every fork your agent considered, rejected, and executed as replayable JSONL. Adapters for OpenAI Agents and LangGraph, an MCP host, a proxy layer, policy packs, and signed export packs.

JWT-gated LLM gateway: authenticate (bcrypt/JWT), then run a LangChain-on-Vertex Gemini completion. Unauthenticated calls are rejected.

JWT-gated LLM gateway: authenticate (bcrypt/JWT), then run a LangChain-on-Vertex Gemini completion. Unauthenticated calls are rejected.

Run a prompt through a LangChain (system + human) chain over Gemini on Vertex AI; optional LangSmith tracing.

LangChain tools for Hlido — vet an AI agent against its independent, evidence-backed trust score before delegating to it.

SSE thin-layer SDK: LangchainAgentEvent → standard SSE for langchain_agentx_stream_ui

LangChain integration for Xpoz social media intelligence — Twitter/X, Instagram, Reddit, TikTok

One binding deadline for every inner timeout in a LangGraph node — clamp inner budgets to the cooperative deadline so work salvages instead of getting killed by the watchdog.

LangChain VectorStore integration for VectorDB (Vektra)

LangChain.js tools for Agent402.Tools (the applied layer of Agentic Finance): turn its catalog - 500+ strong: 400+ pay-per-call tools (x402 or MPP) + 70+ skill packs (browser, web search, OCR, PDFs, memory) - into LangChain tools via four meta-tools (find

Atomic Mail LangChain toolkit — register, jmap_request, and help tools for JS/TS agents.

LangChain tools for Microsoft To Do (Microsoft Graph /me/todo) — direct REST calls, no MCP. Extracted from Jarela.

LangChain.js BaseChatMemory implementation backed by Mnemosyne. Persistent, searchable, container-scoped chat history with hybrid BM25+vector recall. Replaces LangChain's in-process BufferMemory and ZepMemory. Per-conversation thread tracking, automatic r

Content Tools MCP - AI/LangChain/Mastra tools for the CMS service API