Source: https://seerepo.com/r/nexu-io/open-design/built
Markdown source: https://seerepo.com/r/nexu-io/open-design/built.md
Description: open-design is a TypeScript repo built with Next.js, React, and Express. It uses AI through Anthropic, measures its use with PostHog, and uses MCP.

# What is open-design built with?

open-design is a TypeScript repo built with Next.js, React, and Express. It uses AI through Anthropic, measures its use with PostHog, and uses MCP. It has 3,991 files and 2,199,717 written lines, with 3,070 test files.

Read on October 30, 2026, at commit 12d970e.

Repository: https://github.com/nexu-io/open-design

## Frontend

### The base

- **[Next.js](https://seerepo.com/uses/nextjs)**: [in package.json](https://github.com/nexu-io/open-design/blob/12d970eacc8971150e3c76470d2a9afe16dc2ed1/package.json)
- **[React](https://seerepo.com/uses/react)**: [in package.json](https://github.com/nexu-io/open-design/blob/12d970eacc8971150e3c76470d2a9afe16dc2ed1/package.json)

## Backend

### The base

- **[Express](https://seerepo.com/uses/express)**: [in package.json](https://github.com/nexu-io/open-design/blob/12d970eacc8971150e3c76470d2a9afe16dc2ed1/package.json)

### Services

- **[PostHog](https://seerepo.com/uses/posthog)**: 2 files · [apps/daemon/src/analytics.ts, line 14](https://github.com/nexu-io/open-design/blob/12d970eacc8971150e3c76470d2a9afe16dc2ed1/apps/daemon/src/analytics.ts#L14)
- **[Anthropic](https://seerepo.com/uses/anthropic)**: 1 file · [apps/web/src/providers/anthropic.ts, line 10](https://github.com/nexu-io/open-design/blob/12d970eacc8971150e3c76470d2a9afe16dc2ed1/apps/web/src/providers/anthropic.ts#L10)
- **[MCP](https://seerepo.com/uses/mcp)**: 1 file · [apps/daemon/src/mcp.ts, line 13](https://github.com/nexu-io/open-design/blob/12d970eacc8971150e3c76470d2a9afe16dc2ed1/apps/daemon/src/mcp.ts#L13)

## Other repos with a similar stack

- [Mintplex-Labs/anything-llm](https://seerepo.com/r/Mintplex-Labs/anything-llm/built): React, Express, PostHog, Anthropic, MCP · [Compare](https://seerepo.com/compare/Mintplex-Labs/anything-llm/vs/nexu-io/open-design)
- [bojieli/ai-agent-book](https://seerepo.com/r/bojieli/ai-agent-book/built): Next.js, React, Express, PostHog, Anthropic · [Compare](https://seerepo.com/compare/bojieli/ai-agent-book/vs/nexu-io/open-design)
- [n8n-io/n8n](https://seerepo.com/r/n8n-io/n8n/built): Express, PostHog, Anthropic, MCP · [Compare](https://seerepo.com/compare/n8n-io/n8n/vs/nexu-io/open-design)
- [Significant-Gravitas/AutoGPT](https://seerepo.com/r/Significant-Gravitas/AutoGPT/built): Next.js, React, PostHog, Anthropic · [Compare](https://seerepo.com/compare/nexu-io/open-design/vs/Significant-Gravitas/AutoGPT)
- [supabase/supabase](https://seerepo.com/r/supabase/supabase/built): Next.js, React, PostHog, MCP · [Compare](https://seerepo.com/compare/nexu-io/open-design/vs/supabase/supabase)
- [paperclipai/paperclip](https://seerepo.com/r/paperclipai/paperclip/built): React, Express, Anthropic, MCP · [Compare](https://seerepo.com/compare/nexu-io/open-design/vs/paperclipai/paperclip)

## Frequently asked questions

### What language is open-design written in?

open-design is written in TypeScript: 3,991 files and 2,199,717 written lines.

### What framework does open-design use?

open-design is built with Next.js, React, and Express.

The proof: [in package.json](https://github.com/nexu-io/open-design/blob/12d970eacc8971150e3c76470d2a9afe16dc2ed1/package.json)

### Does open-design use AI?

Yes. open-design uses AI through Anthropic.

The proof: [apps/web/src/providers/anthropic.ts, line 10](https://github.com/nexu-io/open-design/blob/12d970eacc8971150e3c76470d2a9afe16dc2ed1/apps/web/src/providers/anthropic.ts#L10)

### What services does open-design use?

open-design measures its use with PostHog and uses MCP.

The proof: [apps/daemon/src/analytics.ts, line 14](https://github.com/nexu-io/open-design/blob/12d970eacc8971150e3c76470d2a9afe16dc2ed1/apps/daemon/src/analytics.ts#L14)

### Does open-design have tests?

Yes. open-design has 3,070 test files.

### Which repos have a stack like open-design's?

The ones that share most of its stack: Mintplex-Labs/anything-llm, bojieli/ai-agent-book, and n8n-io/n8n.

## 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.