Source: https://seerepo.com/r/ChatGPTNextWeb/NextChat/built
Markdown source: https://seerepo.com/r/ChatGPTNextWeb/NextChat/built.md
Description: NextChat is a TypeScript repo built with Next.js and React. It uses MCP. It has 148 files and 43,237 written lines, with 37 test files.

# What is NextChat built with?

NextChat is a TypeScript repo built with Next.js and React. It uses MCP. It has 148 files and 43,237 written lines, with 37 test files.

Read on October 27, 2026, at commit 1d3dc33.

Repository: https://github.com/ChatGPTNextWeb/NextChat

## Frontend

### The base

- **Next.js**: [in package.json](https://github.com/ChatGPTNextWeb/NextChat/blob/1d3dc331512929a4b1d3e82354e72acce33b5c7a/package.json)
- **[React](https://seerepo.com/uses/react)**: [in package.json](https://github.com/ChatGPTNextWeb/NextChat/blob/1d3dc331512929a4b1d3e82354e72acce33b5c7a/package.json)

## Backend

### Services

- **MCP**: 2 files · [app/mcp/client.ts, line 1](https://github.com/ChatGPTNextWeb/NextChat/blob/1d3dc331512929a4b1d3e82354e72acce33b5c7a/app/mcp/client.ts#L1)

## Other repos with a similar stack

- [react/react](https://seerepo.com/r/react/react/built): Next.js, React, MCP · [Compare](https://seerepo.com/compare/ChatGPTNextWeb/NextChat/vs/react/react)
- [shadcn-ui/ui](https://seerepo.com/r/shadcn-ui/ui/built): Next.js, React, MCP · [Compare](https://seerepo.com/compare/ChatGPTNextWeb/NextChat/vs/shadcn-ui/ui)
- [supabase/supabase](https://seerepo.com/r/supabase/supabase/built): Next.js, React, MCP · [Compare](https://seerepo.com/compare/ChatGPTNextWeb/NextChat/vs/supabase/supabase)
- [deepseek-ai/deepseek-harness](https://seerepo.com/r/deepseek-ai/deepseek-harness/built): React, MCP
- [yangshun/tech-interview-handbook](https://seerepo.com/r/yangshun/tech-interview-handbook/built): Next.js, React
- [thedotmack/claude-mem](https://seerepo.com/r/thedotmack/claude-mem/built): React, MCP

## Frequently asked questions

### What language is NextChat written in?

NextChat is written in TypeScript: 148 files and 43,237 written lines.

### What framework does NextChat use?

NextChat is built with Next.js and React.

The proof: [in package.json](https://github.com/ChatGPTNextWeb/NextChat/blob/1d3dc331512929a4b1d3e82354e72acce33b5c7a/package.json)

### What services does NextChat use?

NextChat uses MCP.

The proof: [app/mcp/client.ts, line 1](https://github.com/ChatGPTNextWeb/NextChat/blob/1d3dc331512929a4b1d3e82354e72acce33b5c7a/app/mcp/client.ts#L1)

### Does NextChat have tests?

Yes. NextChat has 37 test files.

### Which repos have a stack like NextChat's?

The ones that share most of its stack: react/react, shadcn-ui/ui, and supabase/supabase.

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.