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mcp-server-dev Plugin

Author
Anthropic
Category
Development
Topics
AI Agents & AI App Development · Claude Code Customization & Workflow
First seen
2026-07-09
Last confirmed
2026-07-13
Explanation last updated
2026-07-12

The explanation below is AI-generated. Please verify it against the sources.

mcp-server-dev is an official Claude plugin that provides three skills for designing and building MCP servers: build-mcp-server (entry point), build-mcp-app (interactive UI widgets), and build-mcpb (local stdio packaging). According to the README, build-mcp-server acts as the front door, asking what you're connecting to, who'll use it, how large the action surface is, and whether in-chat UI is needed, then recommending one of four paths: remote streamable-HTTP, MCP app, MCPB, or a local stdio prototype. Each skill ships reference files covering auth flows (DCR/CIMD), tool-description writing, widget templates, manifest schemas, and security hardening. Users trigger it by asking Claude to "help me build an MCP server" or by directly invoking /mcp-server-dev:build-mcp-server.

Overview

This is not a SaaS product; it is a Claude plugin (a set of Claude Code skills) for designing and building MCP (Model Context Protocol) servers that work with Claude.

What you can do with mcp-server-dev

  • Use build-mcp-server as an entry point that interrogates your use case and picks a deployment model (remote HTTP / MCPB / local stdio) and tool-design pattern
  • Use build-mcp-app to add interactive UI widgets (forms, pickers, confirm dialogs) rendered inline in chat, on remote servers or MCPB bundles
  • Use build-mcpb to package a local stdio server with its runtime so users can install it without Node/Python
  • Get scaffolding for one of four recommended paths: Remote streamable-HTTP, MCP app, MCPB, or Local stdio prototype (with MCPB upgrade note)
  • Reference included files on auth flows (DCR/CIMD), tool-description writing, widget templates, manifest schemas, and security hardening
  • Trigger the workflow by asking Claude "help me build an MCP server" or running /mcp-server-dev:build-mcp-server

Sources

Original description (English)

Skills for designing and building MCP servers that work seamlessly with Claude. Guides you through deployment models (remote HTTP, MCPB, local), tool design patterns, auth, and interactive MCP apps.

History of mcp-server-dev

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