# Build Mcpb (agent skill)

> Build Mcpb is an agent skill (a SKILL.md file) from anthropics/claude-plugins-official. It should be used when the user wants to "package an MCP server", "bundle an MCP", "make an MCPB", "ship a local MCP server", "distribute a local MCP", discusses ".mcpb… It works with Claude Code and has 37,478 GitHub stars across a repository of 7 listed skills.

This skill should be used when the user wants to "package an MCP server", "bundle an MCP", "make an MCPB", "ship a local MCP server", "distribute a local MCP", discusses ".mcpb files", mentions bundling a Node or Python runtime with their MCP server, or needs an MCP server that interacts with the local filesystem, desktop apps, or OS and must be installable without the user having Node/Python set up. MCPB is a local MCP server packaged with its runtime.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/anthropics/claude-plugins-official |
| Skill path | plugins/mcp-server-dev/skills/build-mcpb/SKILL.md |
| Skill name | build-mcpb |
| GitHub stars | 37,478 |
| Installs on skills.sh | not listed |
| License | Apache-2.0 |
| Skills in repo | 7 |
| Plugin marketplace | claude-plugins-official |
| Official | yes |
| Works with | Claude Code |
| Category | Coding |
| Last commit | Oct 5, 2026 |

## When it triggers

- used when the user wants to "package an MCP server", "bundle an MCP", "make an MCPB", "ship a local MCP server", "distribute a local MCP", discusses ".
- "package an MCP server"
- "bundle an MCP"
- "make an MCPB"
- "ship a local MCP server"
- "distribute a local MCP"
- ".mcpb files"

## Add this skill

### Claude Code

```sh
/plugin marketplace add anthropics/claude-plugins-official
/plugin install mcp-server-dev@claude-plugins-official
```

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/anthropics/claude-plugins-official.git
cp -r claude-plugins-official/plugins/mcp-server-dev/skills/build-mcpb .agents/skills/build-mcpb   # repo; ~/.agents/skills for all projects
```

### Cursor

```sh
git clone --depth 1 https://github.com/anthropics/claude-plugins-official.git
cp -r claude-plugins-official/plugins/mcp-server-dev/skills/build-mcpb .cursor/skills/build-mcpb   # 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

---

Canonical page: https://appsgit.com/skills/anthropics-build-mcpb
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.