StruxJS binding for @langgraph-toolkit/core: ServiceProvider, AgentScanner, checkpoint, SSE.

NestJS binding for @langgraph-toolkit/core: GraphService + DynamicModule + @Sse() usage.

Express binding for @langgraph-toolkit/core: SSE middleware and graph router.

Fastify plugin for @langgraph-toolkit/core: graph routes with native SSE.

Typed MCP client integration for Langgraph-Toolkit with async credentials and framework-agnostic execution.

Framework-agnostic Langgraph-Toolkit core: typed graph builders, state, execution, streaming, interrupts, models and agents for any backend host.

Optional community model provider presets for Langgraph-Toolkit, including Hugging Face and OpenAI-compatible open-source deployments.

Database checkpointers for @langgraph-toolkit/core: SQL (SQLite/Postgres/MySQL), Redis, MongoDB. Drivers are injected, so no database library is a hard dependency.

LangGraph

Framework-agnostic helpers for building A2UI subagent tools — op builders, prompt assembly, history walkers, and request/envelope orchestration shared across framework adapters.

Client library for interacting with the LangGraph API

Library with base interfaces for LangGraph checkpoint savers.

Create a new LangGraph project

Implementation of the AG-UI protocol for LangGraph.

A state-of-the-art, high-performance JavaScript utility library with a small bundle size and strong type annotations.

The official command-line interface for LangGraph.js, providing tools to create, develop, and deploy LangGraph.js applications.

The official, opinionated, batteries-included toolset for efficient Redux development

Selectors for Redux.

The **[AI SDK](https://ai-sdk.dev)** LangChain adapter provides seamless integration between [LangChain](https://langchain.com/) and the AI SDK, enabling you to use LangChain agents and graphs with AI SDK UI components.

LangGraph adapter for assistant-ui