Case Study / 2026
Meridian
A split-stack chat routing application built with a Next.js dashboard and FastAPI backend, using LangGraph workflows to manage model selection, provider settings, local chat history, and OpenRouter-powered responses.
Next.jsFastAPILangGraphOpenRouterTailwind CSSTypeScript
Project Features
What this case study includes
05 features
Next.js dashboard for chat, models, history, and provider controls
FastAPI endpoints for health checks and routed chat requests
LangGraph workflow layer for request orchestration and response shaping
OpenRouter-backed model routing with shared-key or user-supplied provider setup
Local-first settings and conversation history stored in the browser
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