MCP Builder

mcp-use/mcp-builder

Build, modify, debug, or review TypeScript MCP servers with mcp-use.

69k tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

10446

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/mcp-use/mcp-use --skill mcp-builder

What comes with it

275 835 bytes besides the instruction

LICENSE.txt

evals/README.md

evals/architecture.json

evals/implementation.json

evals/skill.json

evals/widgets.json

references/authentication/auth0.md

references/authentication/better-auth.md

references/authentication/clerk.md

references/authentication/custom.md

references/authentication/keycloak.md

references/authentication/overview.md

references/authentication/supabase.md

references/authentication/workos.md

references/foundations/architecture.md

references/foundations/concepts.md

references/foundations/deployment.md

references/foundations/quickstart.md

references/patterns/common-patterns.md

references/server/prompts.md

references/server/proxy.md

references/server/resources.md

references/server/response-helpers.md

references/server/tools.md

references/widgets/advanced.md

references/widgets/basics.md

references/widgets/files.md

references/widgets/interactivity.md

references/widgets/model-context.md

references/widgets/state.md

references/widgets/ui-guidelines.md

The instruction itself

3 sections, as written by the author

Build MCP servers with mcp-use

mcp-use is the full stack TypeScript framework for building MCP servers and MCP apps to plug-ins and Claude connectors

Use it to build fully typed MCP servers with tools, resources, prompts, 1 line oauth authentication adapters, middleware, production transports, a built-in Inspector, and headless tooling.

mcp-use has native first class support for MCP Apps with support for HMR both at the server and MCP App level to live preview the changes on clients like ChatGPT

Get started

Follow the guides at <https://docs.mcp-use.com/v2>.

API reference

Consult the TSDoc bundled in the installed package and the TypeScript source

comments on disk. Inspect the project's installed mcp-use version and nearby

code before choosing APIs or patterns.

How to use it

Copy the folder

Take mcp-use/mcp-builder from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.