Langchain agents

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: turn its catalog - 500+ strong: 400+ x402 pay-per-call tools + 100+ skill packs (browser, web search, OCR, PDFs, memory) - into LangChain tools via four meta-tools (find/route/call/about), plus the cross-seller x402

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

Track AI agent costs, tokens, runtime and spending. Prevent runaway OpenAI, Anthropic, LangGraph and OpenRouter agents from exceeding budget.

Production reliability suite for LangChain/LangGraph multi-agent systems

Cut AI agent token costs. One line of code. Drop-in supervisor for LangChain, LangGraph, AutoGen, CrewAI, and Smolagents.

Full-process autonomous scientific research agent — from literature search to LaTeX paper

Autonomous coding agent — local-first, RAG-aware multi-agent CLI

ForgeSight LangGraph adapter — auto-instrument LangGraph/LangChain agents via callbacks.

LangChain tools for Hotdata runtime

LangGraph integration for Hotdata runtime

LangChain embeddings that run on the Apple Neural Engine, via ANEForge (no CoreML).

BabelTele: model-native, high-density text compression for LangChain pipelines and agents.

LangChain integration for Infino — vector, BM25, and hybrid retrieval over one engine on object storage.

Library with a Tigris object-storage implementation of LangGraph checkpoint saver, with zero-copy bucket-fork branching.

LangChain Agent framework with built-in Web UI

LangChain integration for HyperspaceDB

Decorators for provider collaboration and modern LangChain task patterns in NestJS.

LangSmith extension for Pi Coding Agent

LangGraph decorators and discovery integration for NestJS.

Persistent memory infrastructure for AI agents - Memory that adapts. Intelligence that compounds.

Track AI agent costs, tokens, runtime and spending. Prevent runaway OpenAI, Anthropic, LangGraph and OpenRouter agents from exceeding budget.

The model-independent trust layer for AI agents: verifiable identity, model provenance, tamper-evident SHA-256 audit chains, policy enforcement, and outcome verification. Framework-agnostic.

Node.js SDK for the BEACON Protocol - Agent Safety Layer

The runtime-agnostic AI agent specification. Define once. Run anywhere.

Axemere AI Gateway LangChain integration — ChatAiGateway BaseChatModel

AIGP governance adapter for LangChain/LangGraph

Deterministic security middleware for RAG applications to prevent context exfiltration via indirect prompt injection.

LangGraph adapter for Rifft

CLS observability SDK for LangChain/LangGraph — 6-layer span hierarchy, direct upload to Tencent Cloud CLS

Human-in-the-loop review as agent tools for LangChain, CrewAI, LlamaIndex, and AutoGen.

n8n community nodes for the ConfirmX WhatsApp Business Platform Public REST API. Ships a Message node (start conversation with a template, send text/media) and a ConfirmX AI Agent node, both eligible as AI Agent tools via n8n's usableAsTool.

Lightweight AI Agent Runtime for Node.js

Behavioral transaction risk SDK for crypto wallets and AI agent wallets

The official JS/TS SDK for Creduent: the open standard and security protocol for cryptographic AI agent identity, authentication, and trust verification using Ed25519 and DNS.

SpendGuard pre-call budget enforcement for n8n AI Agent workflows — drop a sub-node between Chat Model and AI Agent.

Tiered, token-budget-aware memory for any LLM agent

Use LLMs to robustly extract and enrich structured data from HTML and markdown

LangChain.js / LangGraph callback adapter for AgentInspect local execution trees and Evidence workflows

Agent-callable wrappers for Veil Protocol's quantum-resistant payments (x402-pqc) and private Ghost AI inference (circles) — MCP server, LangChain tools, OpenAI functions, and a REST API

LangChain tool adapter for the read-only BRADY Discovery SDK — advisory routing and observation tools for agent workflows

LangChain TS callback handler for SpendGuard budget guardrails

LangChain integration for the Grantex delegated authorization protocol

LangSmith tracing module and decorators for NestJS.

Render markdown to Telegram, stream agent replies into live drafts, and drive a snapshot/rollback turn-loop — runtime-agnostic.

NestJS decorators and discovery for LangChain tools.

Enprompta framework instrumentation for LangChain — emits typed, nested OpenTelemetry spans that Enprompta ingests as first-class Retrieval/Tool/Agent spans.

> AI framework integrations for the Yuno payment orchestrator

Thin NestJS registry and shared contracts for optional LangChain integrations.

PayDuct spend-request tool for LangChain agents

Stratos AI agent telemetry (OpenLLMetry), Vercel AI auto-spans, LangChain inspect/fix, MCP proxy.

Runtime adapter that bridges agent frameworks (OpenAI SDK, LangChain) with production infrastructure

A [HarnessV1](../harness) adapter that runs [Deep Agents](https://github.com/langchain-ai/deepagentsjs) (LangChain's LangGraph-based agent harness) as a coding-agent runtime inside an AI SDK sandbox.

NestJS prompt registry helpers for LangChain prompt templates.

LangChain tools for PayDirect — enable AI agents to make payments, check balances, swap tokens, and manage wallets

OpenAI-compatible provider tokens and model factory wiring for Nest LangChain.

Gemini provider tokens and model factory wiring for Nest LangChain.

Hosted graph documentation and layout APIs for Nest LangChain registries.

Anthropic provider tokens and model factory wiring for Nest LangChain.

Unbrowse as native LangChain JS tools. Three tools (resolve, execute, search) shaped exactly like LangChain's StructuredTool/DynamicStructuredTool — { name, description, schema (JSON Schema), invoke, call }. No zod dependency. Pass your own @langchain/cor

Anchor your LangChain.js agent's run tree as it executes: one callback handler turns every chain/LLM/tool step into a Merkle-batched, individually inclusion-proofed provenance record on ar.io — prompts and outputs are hashed locally and never uploaded.