# MCP App Builder (agent skill)

> MCP App Builder is an agent skill (a SKILL.md file) from alpic-ai/skybridge. Guide developers through creating and updating MCP Apps. It works with Claude Code and has 2,145 GitHub stars across a repository of 3 listed skills. Install it by copying the skill folder into your agent's skills directory.

Guide developers through creating and updating MCP Apps. Covers the full lifecycle: brainstorming ideas against UX guidelines, bootstrapping projects, implementing tools/views, debugging, running dev servers, deploying and connecting apps to ChatGPT. Use when a user wants to create or update a MCP App, MCP server or use the Skybridge framework. Those are conversational experiences that extend AI assistants through tools and custom UI views.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/alpic-ai/skybridge |
| Skill path | skills/mcp-app-builder/SKILL.md |
| Skill name | mcp-app-builder |
| GitHub stars | 2,145 |
| Installs on skills.sh | not listed |
| License | MIT |
| Skills in repo | 3 |
| Plugin marketplace | no |
| Official | no |
| Works with | Claude Code |
| Category | Testing & QA |
| Last commit | Oct 6, 2026 |

## When it triggers

- Use when a user wants to create or update a MCP App, MCP server or use the Skybridge framework.

## Add this skill

### Claude Code

```sh
git clone --depth 1 https://github.com/alpic-ai/skybridge.git
cp -r skybridge/skills/mcp-app-builder ~/.claude/skills/mcp-app-builder   # personal, or .claude/skills in a project
```

In the Claude apps, zip the skill folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

### ChatGPT / Codex

```sh
git clone --depth 1 https://github.com/alpic-ai/skybridge.git
cp -r skybridge/skills/mcp-app-builder .agents/skills/mcp-app-builder   # repo; ~/.agents/skills for all projects
```

### Cursor

```sh
git clone --depth 1 https://github.com/alpic-ai/skybridge.git
cp -r skybridge/skills/mcp-app-builder .cursor/skills/mcp-app-builder   # project; ~/.cursor/skills for all projects
```

Sources (checked 2026-10-07): https://code.claude.com/docs/en/skills, https://support.claude.com/en/articles/12512180-using-skills-in-claude, https://learn.chatgpt.com/docs/build-skills, https://cursor.com/docs/context/skills

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Canonical page: https://appsgit.com/skills/alpic-ai-mcp-app-builder
Source: appsgit (https://appsgit.com), the app store for github. Data from the GitHub API, refreshed nightly.
Machine access: JSON API https://appsgit.com/api/v1/apps (OpenAPI: https://appsgit.com/openapi.json), MCP server https://mcp.appsgit.com/mcp, full index https://appsgit.com/llms-full.txt.