Langchain agents

Official Search1API tools for LangChain

🛡️ Experimental security guardrails for LangChain agent code execution — Docker sandbox isolation.

LangChain adapter for Sentinel AI agent governance — wrap any LangChain tool so every call is authorized (and audited) by the Sentinel gateway before it runs. Private beta: [email protected]

Zero-dependency Python graph runtime for agent loops with Mermaid export

LangChain and CrewAI tools for Sirenic - official French & European company data, paid per call via x402 (USDC/EURC on Base). No account, no API key.

General purpose 'deep agent' with sub-agent spawning, todo list capabilities, and mock file system. Built on LangGraph.

Local coding agent built on LangChain Deep Agents (LocalShell, no sandbox)

Ready-made agents for the TAI ecosystem — coding/deep agents, tool-calling, retrieval, voting, refinement, and vision agents — opt-in and manifest-loaded.

Temporal decay weighting for RAG. Rerank retrieval by similarity x document age, with adstock-derived decay kernels.

Mask PII in LLM tool-call outputs before they reach the model, with role-based access control. Zero dependencies.

LangChain request-signing adapter for the VAID standard: sign every outbound agent HTTP request with a VAID proof-of-possession via a thin httpx.Auth seam.

A veto gate for AI-written code in LangChain / LangGraph — 17 reality gates + frontier review, with veto power. Free to try, no signup.

LangChain integration for viparse — read Vietnamese documents, legacy encodings included

The LangGraph (Python) adapter for Welt's wire contract

LangChain integration for wigolo — local-first web search MCP server

AI Agent node (baseado no n8n-nodes-langchain.agent v2.21.0) com tracing para Langfuse

DeepSeek AI Chat Model sub-node for n8n AI Agent workflows (V4-native)

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.

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

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

NestJS/LangChain integration for the Langfuse v5 OpenTelemetry SDK: a noise-filtered LangChain callback handler, a version-stepped Langfuse-managed prompt runnable, and helpers for tracing detached session turns.

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.

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

Define LLM-powered backend actions as Markdown. Generate typed clients. Run them anywhere.

This package contains the LangChain.js integrations for Anthropic via the anthropic-ai/sdk package.

A personal Chinese knowledge workflow built as an upstream-compatible OpenWiki distribution.

Drop-in LangChain + LangGraph instrumentation with EvalGuard guardrails, trace logging & cost tracking

AI-powered code review from your terminal — security, performance, and quality agents on every PR

Countly AI observability adapter for LangChain

LangChain.js adapters for @localmode — drop-in local inference for existing LangChain apps

Provider adapters for AgentsKit.

LangGraph runtime adapter for nestjs-agentic enabling stateful graph-based agent orchestration with NestJS governance.

LangChain Agents (LangGraph) provider for @launchdarkly/ai-server

Programmatic JS/TS SDK for doc2mcp — convert any docs URL into a hosted MCP server from code, CI, LangChain, and LangGraph.

Proof-carrying memory for any agent framework — gate memory before generation, get an Answer Receipt. Adapters for LangGraph, the OpenAI Agents SDK, and anything else.

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

AI-friendly TypeScript rules engine for serializable JSON business rules and deterministic workflow decisions.

AI Developer Governance & Codebase Evaluator — A GraphRAG-powered multi-agent system featuring autonomous code evaluation, red-team testing, and dynamic LLM-narrated architectural documentation.

面向 LangChain / LangGraph 开发者的 AI Agent 三层记忆管理微服务

Amazon product search volume as a ready-made tool for LangChain, CrewAI, AutoGen, and any tool-calling AI agent. Search volume, growth signals, and live best sellers. No Amazon API key. Powered by trendsmcp.ai

App download trends as a ready-made tool for LangChain, CrewAI, AutoGen, and any tool-calling AI agent. Weekly series, growth percentages, and live charts. Powered by trendsmcp.ai

自主进化的 AI Agent 框架 - 人格数据主权 + 情感底色 + 元反射性学习 + 自主思考循环，零 LangGraph 依赖

LangGraph store backed by Citadel: encrypted at rest, semantic search, cryptographic deletes

ForceDream tools for LangChain -- hire AI agents and get a cryptographic proof for every tool call.

Google Search trend data as a ready-made tool for LangChain, CrewAI, AutoGen, and any tool-calling AI agent. Weekly or daily series, period-over-period growth, no scraping. Powered by trendsmcp.ai

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

Interfaze Langchain SDK

Local-first self-healing Ubuntu terminal agent. Type in English, get shell commands with risk checks and smart retries.

Native LangChain integration for the Apertis AI API

LangChain tools, loaders, retrievers, and inbound email events for CarlyEmail.

LangChain tools for ERC20 primitives: balances, allowances, transfers, approvals, and native wrap/unwrap, as execution plans an EOA can sign or a smart-contract wallet can batch.

LangChain document loader that turns PDFs and images into Markdown documents with the HexRead API.

LangChain tools for generating privacy-safe synthetic financial data for Latin American fintech applications.

LangChain tools that return finished files: PDF, docx, charts, subtitles, invoices, screenshots — one hosted endpoint, free quota, no API key to start.

OpenSandbox sandbox backend for LangChain deep agents

A LangChain document loader and blob parser for PDF files, built on the pdf-inspector library.

TollWarden payment security for LangChain/LangGraph agents: scan x402 payments before settling, auto-tag provenance for prompt-injection detection, guard payment tools so blocked payments can never execute.

YantrikDB integration for LangChain — cognitive memory as a VectorStore and ChatMessageHistory. Stored memories decay, consolidate, and get contradiction-checked.

LangGraph checkpoint saver backed by Supabase (Postgres via PostgREST).

LangGraph BaseStore implementation backed by Upstash Redis (REST client).

LangGraph nodes/tools to monetize graph steps via U.CASH (HTTP-402). Non-custodial.

LangChain/LangGraph agent handler for LaunchDarkly AI SDK

LangChain messages handler for LaunchDarkly AI SDK

Synap memory integration for deepagents — a memory backend, retrieval middleware, and tools

Needlepath context selection for LangChain agents (AgentMiddleware) and LangGraph.

News sentiment scores (positive/negative) as a ready-made tool for LangChain, CrewAI, AutoGen, and any tool-calling AI agent. Weekly or daily series, period-over-period growth. Powered by trendsmcp.ai

News article mention volume as a ready-made tool for LangChain, CrewAI, AutoGen, and any tool-calling AI agent. Weekly or daily series, growth percentages. No media database subscription. Powered by trendsmcp.ai

npm download trends as a ready-made tool for LangChain, CrewAI, AutoGen, and any tool-calling AI agent. Weekly download series, growth percentages, and live trending packages. Powered by trendsmcp.ai

轻量级的 OpenAI 大模型 IO 库：chat / completions / embeddings，基于 httpx，langchain 风格 message

Retrieval as a mesh of MCP services — an agentic RAG platform built on LangGraph. Under active development.

Reddit mention volume as a ready-made tool for LangChain, CrewAI, AutoGen, and any tool-calling AI agent. Weekly series, growth percentages, and live Reddit trending posts. No OAuth. Powered by trendsmcp.ai

Zero-dependency, stdlib-only Python client for rusty-server (threads, runs, SSE streaming, time travel, assistants, crons, KV store, durable tasks)

Compatibility shim — saihm-langgraph is now the consolidated saihm-adapters[langgraph]. Import from saihm_adapters (was saihm_memory).

LangGraph workflow for solar forecasting with OpenMeteo, historical data, and inverter-control integration

Steam concurrent player data as a ready-made tool for LangChain, CrewAI, AutoGen, and any tool-calling AI agent. Weekly series, growth percentages, and live trending games. Powered by trendsmcp.ai

Plain-English observability for AI agents — live dashboards, replay, and one-line LangGraph auto-instrumentation, metadata-safe by default.

LangChain and LangGraph integration primitives for streaming OpenUI generative interfaces

Unified observability for AI agents and infrastructure. One SDK.

Native LangChain tools for Agentlink read-only queries.

Telnyx Agent Toolkit for TypeScript — tools for OpenAI, Vercel AI SDK, and LangChain.js

Official LangChain & CrewAI Tool for Barlas Execution OS.

LangGraph Adapter for AI-Engineering-Toolkit (AIET)

PostgreSQL adapter and LangGraph checkpointer for agentic-fullstack.

Execution engine for agentic-fullstack — runs LangGraph agents driven by a persistent timeline of events.

Node.js SDK for building an MCP-powered virtual secretary with LangChain and LangGraph

AgentAvow bridge for LangChain (formerly agentgraph-bridge-langchain) — register agents and graphs with the AgentAvow trust network

面向学习者的 AI Agent 执行调试器

A firewall for AI agent spending. 9 composable rules evaluated per-transaction in <1ms. Pure Python stdlib — zero dependencies.

LangChain toolkit for Attestify — governed AI loop execution, receipts, audit trails, and Attestify Trust (no-wallet agent identity + signed evidence)

LangGraph node integration for Attestify — governed AI loop execution, receipts, audit trails, and Attestify Trust (no-wallet agent identity + signed evidence)

Thin LangGraph node helpers for DMA memory.

LangChain text to speech tool for the Gandr TTS API. First audio byte in 146 ms over the open internet, 116 ms p50 first audio, server side warm. 23 languages, every render watermarked.

LangChain tools for GateCore marketplace discovery, procurement, and governed execution

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.

Turn a prompt + a field schema into validated, typed JSON (Instructor over Gemini 2.5 Flash on Vertex AI).

Wire LangGraph and CrewAI agents into Kafka-backed event-driven systems.