Plugin Official

MCP Server Dev

Three skills for designing and building MCP servers: remote HTTP, MCP apps with UI widgets, and MCPB packaging.

Author
Anthropic
Works with
Claude Code
License
Apache-2.0
Documented
Oct 2, 2026

What MCP Server Dev is

build-mcp-server is the entry point; it asks about the use case and recommends a deployment path. build-mcp-app adds interactive widgets and build-mcpb packages local stdio servers.

What it does

How MCP Server Dev plugs in: which agents run it and what it addsRUNS INYour agentClaude Codeone host documentedPLUGIN · OFFICIALMCP Server DevBundles of skills, commands, hook…3 install stepsno extra permissions listedlicense: Apache-2.0WHAT IT ADDSWhat it doesbuild-mcp-server picks deployment…Scaffolds remote streamable-HTTP…build-mcp-app adds forms, pickers…build-mcpb packages a local serve…agent → extension → new capability · from the official repository or docs
Where MCP Server Dev runs and what it adds, from its documentation
  • build-mcp-server picks deployment model and tool-design pattern
  • Scaffolds remote streamable-HTTP or local stdio servers
  • build-mcp-app adds forms, pickers and confirm dialogs in chat
  • build-mcpb packages a local server with its runtime
  • Reference files cover auth (DCR/CIMD), tool descriptions, manifests, hardening

When to use it

Good fit

  • Wrapping a cloud API as an MCP server
  • Building a server that must touch the local machine

How to install MCP Server Dev

You need: Claude Code

  1. Run Claude Code
  2. Run /plugin install mcp-server-dev@claude-plugins-official
  3. Ask 'help me build an MCP server' or run /mcp-server-dev:build-mcp-server
Configuration example (from the official docs)
/mcp-server-dev:build-mcp-server

Limitations

  • Local stdio is a prototype path with an MCPB upgrade note

Tools it extends

Frequently asked questions

What does mcp-server-dev recommend for wrapping a cloud API?

A remote streamable-HTTP server. source

What are the skills in mcp-server-dev?

build-mcp-server, build-mcp-app and build-mcpb. source

When should I use build-mcpb?

For local stdio servers that must run on the user's machine without Node or Python installed. source

Related guides

Sources and gaps

Not stated by the maintainers: Release date and version history are not shown in the plugin README.

More extensions to look at