Langchain agents

Mimir persistent, local, encrypted memory for LangChain — tools and a retriever backed by the Mimir MCP engine.

LangChain tools for Novada — web search, scrape, crawl, extract, research & proxy — derived LIVE from the Novada MCP server (zero contract drift).

NVIDIA OpenShell sandbox backend for LangChain Deep Agents

LangChain document loader for pdfmuse — deterministic PDF/DOCX parsing for RAG.

QuantumScan tools for LangChain, LangGraph, CrewAI, and AutoGen — pre-transaction safety checks and post-quantum cryptography scanning for autonomous agents.

LangChain-native equivalent of Google ADK's RemoteA2aAgent — invoke remote A2A agents as LangChain Runnables and tools

An integration package connecting SearchApi.io and LangChain

An integration package connecting SibFly (measured ground motion per US address, from NASA InSAR) and LangChain

LangChain tools for Signatrust — cryptographically signed, tamper-evident AI Decision Receipts.

Superserve sandbox integration for Deep Agents

LangChain tools for the Synoppy web-data API — read, search, crawl, map, extract, classify, enrich, images, and screenshot the live web from your agent.

An integration package connecting TheCrawler and LangChain

LangChain integration for Tokonomics — AI cost metering, budget alerts, and spending caps for LLM API calls.

Tool governance and auditing framework for LangChain

LangChain VectorStore integration for VectorAmp

An integration package connecting Verifly (agent-native email verification) and LangChain

LangChain integration for XYNQ — decentralized OpenAI-compatible inference.

LangChain integration for ZeroEntropy zerank rerankers

A multi-agent teams implementation using LangGraph (Blackboard & Mailbox architecture)

ScyllaDB checkpointer for LangGraph

LangGraph abstractions for hierarchical multi-agent systems

SurrealDB checkpoint persistence and cross-thread stores for LangGraph.

LangGraph checkpoint saver for Azure CosmosDB with built-in message history pruning via agentstate-reducer

LangGraph checkpoint saver for Google Firestore with built-in message history pruning via agentstate-reducer

A global reusable LLM Registry wrapper for LangChain models with unified error mapping for Lighthouse Agents Factory

Typer + Rich CLI for recruit-loop-agent — run recruiting loops from the terminal

LangChain tools for the Metalift web context API

Microloop integration for LangGraph

MolTrust trust verification middleware for LangChain 1.x

MS-RAGS(ALL-IN-ONE) — production-grade RAG framework builder terminal CLI

Production-grade Harness Agent built on top of LangChain Deep Agents.

Circuit breaker SDK for LLM agents.

FanLang — LangChain integration. OODA Agent and FanLang Retriever for LangChain apps.

LLM-powered semantic assertions for pytest

Plug-and-play agentic framework with multi-backend, guardrails, and Azure AD support

A LangGraph-based multi-agent SDLC orchestration library

A local, free, self-fact-checking multi-agent research assistant (Ollama + MCP + RAG).

LangChain adapter for Snubber

LangChain BaseChatModel adapter for somm — lets LangChain/LangGraph/deepagents apps use somm as their LLM substrate

Drop-in state backend for LangGraph, CrewAI & custom agent loops - Rust core, framework-agnostic, built for production.

LangChain retriever for trelix code intelligence

Use TensorRT-LLM models from LangChain (ChatTrtLlm) with model load/unload and streaming

Governed agent runtime adapters for Tuning Engines, LangGraph, Temporal, and MCP.

LangGraph integration for Zep

LangChain callbacks for ZizkaDB — causal agent logging with parent_id lineage

Stellar Tools LangChain Adapter

LangGraph-powered autonomous CLI agent with guarded execution, local RAG, and memory-scoped planning.

LangChain tools for iCloud Mail (IMAP) and iCloud Calendar / Reminders (CalDAV) — direct protocol calls, no MCP. Auth via Apple ID + app-specific password. Extracted from Jarela.

Factory to create Deep Agents (LangChain) specialized on different databases (MySQL, Postgres, MongoDB, Neo4j, SQLite, DuckDB).

FurlPay tools for LangChain — stablecoin payments, investing, and x402 agentic payment rails

A read-only Kubernetes natural-language CLI agent using LangGraph

Perseus Vault persistent, local, encrypted memory for LangChain — tools and a retriever backed by the Perseus Vault MCP engine.

Grafomem (Fair Source) adapter for LangGraph Checkpointers

Use Mollie in AI agent frameworks — OpenAI, LangChain, Vercel AI SDK

Zero-dependency TypeScript SDK for the fastsearch REST API — hybrid search over docparse chunks, with first-class helpers for LLM agent development (tool definitions, RAG context, retrievers).

true402 tools for LangChain — pay-per-call on-chain rug/honeypot & address safety plus backlink/keyword SEO data for Base AI agents over x402 (USDC, no account, no API key).

Local copy-paste runtime for the AIFluensLab learning labs. Build and run an agent on your own machine with your own provider key.

A CLI that uses a DeepAgents documentation agent to generate and maintain an OpenWiki for a codebase.

LangChain.js tool wrapper for the NodeProxy x402 web surface markdown parser

FalkorDB integration for LangChain.js - A blazing fast graph database for AI applications

LangGraph Checkpoint saver using native SQLite for Node.js and Bun.

Three-tier LangGraph checkpoint saver: L1 SQLite -> L2 NATS KV -> L3 PostgreSQL

The simplest way to use LLMs

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

LangChain Tool integration for The Factory — x402 micropayment data API

The Mandate Agent SDK — Trust Engine for the Agent Economy

Sign LangGraph tool calls and graph nodes with Vouch Credentials.

LangChain.js security integration for Weave Protocol - callbacks, tool wrappers, and retriever guards

MakerChecker connector for LangChain that wraps a StructuredTool so every invocation runs a deny-by-default governance check and records to the hash-chained audit log.

TypeScript/JavaScript SDK for the Agentum engine — agentic governance & IAM enforcement

Raindrop integration for LangChain Deep Agents

Framework to build secure, performant and reliable chat apps and services quickly and efficiently.

your intelligent agent CLI

TypeScript SDK for Lelu — the authorization engine for autonomous AI agents

Agentic Finance (AIFI): turn Agent402's catalog - 500+ strong: 400+ pay-per-call tools (x402 or MPP) + 100+ skill packs - into LangChain and CrewAI tools for Python agents. Free tier via proof-of-work - no wallet, no API keys.

A LangGraph + Ollama coding agent usable as a library via agent.run(query)

Job hunting + tailored CV generation agent built with LangChain deepagents

LangChain chat model provider for Apple's on-device Foundation Models framework

LangChain retriever for the arXiv

LangChain integration for Concentrate.ai — a unified LLM gateway with the OpenAI Responses API.

LangGraph BaseStore backed by Sibyl Memory (SQLite + FTS5, no vector database, no embeddings).

n8n AI Agent node with native Langfuse integration: tracing + prompt management

LiteLLM chat models, embeddings, credentials, and tool-calling AI agent nodes for n8n

Pylva SDK — cost infrastructure for AI agent businesses

Disclosed sponsored slots for MCP servers and AI agent tools. Ships data, never directives. Fail-open by design.

Cashfree payments tools for AI agent frameworks

Reusable LangGraph agent runtime: intent routing, sticky flows, Redis checkpointer, optional answer cache

LLM agent + LLM-as-Judge + Human-in-the-Loop review + learning loop, as an embeddable library

npm-installable CLI wrapper for agent-trace, deterministic record and replay for LLM agent HTTP traffic. Forwards straight to the real Python agent-trace CLI. Requires Python 3.10+ and the agent-observability-trace-cli PyPI package.

AI agent SDK for web pages — embed a chat assistant that edits page data via schema-validated tools. A lighter, framework-agnostic alternative to CopilotKit/LangChain for in-page JSON-editing agents. Vue-bundled; works with DeepSeek, OpenAI, MCP.

Local AI gateway for OpenCode with tool/function calling — use any model via OpenAI, Anthropic, or Gemini API format

Native cross-platform MCP agent. Inspector → MCPAgent → loop → fetch + @mcp-use/client. LangChain bridge at @mcp-use/agent/langchain.

Gateway Agnostic SDK for Punk's hosted AI gateway: OpenAI, Anthropic, OpenRouter, Vercel AI SDK, LangChain, agent tracing, tool caching, and governance.

Turn LangChain agent runs into portable Zansn evidence packs. Capture traces, tool calls, cost, and readiness with a callback handler.

LangChain tool wrappers for the CRYPTYX x402 API. Drop-in DynamicStructuredTool instances that any LangChain agent can bind — signals, factor scores, institutional trigger evaluation, natural-language query. Payment plumbing handled via @cryptyx/x402-clie

Framework-agnostic Agent Protocol engine for LangGraph.js — run engine, handlers, and SSE, driven entirely by injected dependencies.

Framework-agnostic Agent Protocol engine for LangGraph.js — the heart of skein-js.

A live canvas for LangChain agents — stream documents, charts, and rich artifacts into a React panel.

langgraph.json parser and graph loader (path:export) for skein-js.

Express adapter for skein-js — mount the Agent Protocol on an Express Router.