LangChain + Next.js Template

LangChain + Next.js starter template

Active1 major behindFree

Visit LangChain + Next.js Template ↗Source on GitHub ↗

Why this verdict

76 commits by 4 contributors in the last 90 days (33 in the last 30).
Zod 3 declared; latest is 4 (1 major behind).
On current major: Next.js, React, Supabase JS, Tailwind CSS, Vercel AI SDK.

Dependency freshness

Package	Declared	Latest	Status
Zod zod	3.25.76	4.6.5	1 major behind
Next.js next	16.3.4	16.3.6	Current
React react	19.3.0	19.3.0	Current
Supabase JS @supabase/supabase-js	2.97.0	2.117.2	Current
Tailwind CSS tailwindcss	4.3.3	4.3.3	Current
TypeScript typescript	7.0.2	7.0.2	Current
Vercel AI SDK ai	7.0.66	7.0.116	Current

Declared = lowest version the kit's package.json allows. Latest = npm "latest" tag. TypeScript and the Stripe SDK are shown but not counted in the verdict.

What's in the stack

Framework: Next.js
Database / ORM: Supabase
UI: Tailwind CSS, Radix UI
AI: Vercel AI SDK, LangChain

Detected from declared dependencies. A listed package means it's installed, not necessarily fully wired up.

What the README says you get

Analytics
Bundle size analysisThis package has @next/bundle-analyzer set up by default
Deploy
Vercel deploymentWhen ready, you can deploy your app on the Vercel Platform.
Testing
Integration testsRun the calculator and mock-backed Supabase regression tests with Node.js 22.6+

Extracted from the kit's README by a local AI model (qwen3.5:4b) on Sep 26, 2026. Every item is checked against an exact README quote. A README claim is the maker's description, not something we tested.

Maintainer? Add the badge

It updates automatically every time we refresh the evidence. Clicking it opens this page.

[![kitproof](https://kitproof.dev/badge/langchain-nextjs-template.svg)](https://kitproof.dev/kits/langchain-nextjs-template/)