Multi-tier exact-match cache for AI agent workloads backed by Valkey. LLM responses, tool results, and session state with built-in OpenTelemetry and Prometheus instrumentation.
Shared scripts for LangChain.js
Exa integration for LangChain.js
LangGraph BaseCheckpointSaver backed by agentsmcp (AgentMailbox). Drop-in checkpointer for LangGraph.js — your graph state lives in an AgentMailbox thread.
Build LangGraph agents with large numbers of tools
Langchain Toolkit extension of Agentkit (forked from Coinbase)
Modal Sandbox backend for deepagents
Atbash safety guard and audit nodes for LangGraph workflows
GigaChat integration for LangChain.js
LangGraph checkpoint saver implementation using PGlite for local, in-memory, or browser-based PostgreSQL storage
LangChain tool-set for GenZAgents work receipts — issue, countersign, verify, lookup
A web-based IDE for LangChain prompts
LangGraph.js Checkpoint implementation for Firestore
LangChain / LangGraph adapter for kanban-lite – exposes all kanban-lite features as LangChain StructuredTools with streaming comment support
LangChain.js tools for Arenza — let any LangChain or LangGraph agent read AI visibility metrics, GEO opportunities, and brand mention data across ChatGPT, Claude, Gemini, Perplexity, Copilot, and Grok.
Fold — Agent framework adapters for LangChain, LangGraph, and Vercel AI SDK
AG-UI protocol adapter for LangGraph — TypeScript implementation aligned with Python ag-ui-langgraph
TypeScript utilities for building LibreChat agent workflows. The package provides graph orchestration, streaming event handling, tool execution, provider adapters, and message formatting for single-agent and multi-agent runs.
AI Agent Observability — Track OpenAI, LangChain, LangGraph, Bedrock, Vercel AI, Anthropic
A powerful Node.js-based TUI wrapper for LLMs, built with LangChain and Ink.
Nomic integration for LangChain.js
LangGraph adapter for HITL Kit. Emit schema-conformant HITL events from LangGraph interrupt() nodes and resume with typed Command payloads.
A React component library for building AI chat interfaces with LangChain/LangGraph integration.
Opik TypeScript and JavaScript SDK integration with LangChain