About Kubb
Kubb is an MCP server published by kubb-labs in the Documentation category: 🧡 Turn your API spec into type-safe code. Generate TypeScript types, API clients, hooks, validators and mocks from a spec such as OpenAPI.
The repository has 1.8K stars and 149 forks, with the last commit 19 hours ago. Recent commit activity is the strongest signal that reported issues will get attention.
Install
git clone https://github.com/kubb-labs/kubbThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
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Kubb
Turn your API spec into type-safe code
Kubb turns an API spec, such as OpenAPI, into TypeScript types, API clients, hooks, validators and mocks, and keeps them in sync with your API. It reads OpenAPI 2.0, 3.0 and 3.1.
Installation
bun add kubb
# or
pnpm add kubb
# or
npm install kubb
Quick start
Run the setup wizard to create a kubb.config.ts:
npx kubb init
The wizard creates a package.json if needed, guides you through plugin selection, installs packages, and writes kubb.config.ts. Then generate your code:
npx kubb generate
See the documentation for detailed usage and advanced features.
Kubb Studio
Kubb Studio is the visual companion for Kubb. Configure, run, and inspect generations in the browser while Kubb runs in your project or on an agent you control.
Try Studio's shared sandbox, connect a local project, or publish reviewable snapshots from CI. Kubb remains MIT-licensed and works without Studio.
Features
- Generate TypeScript types, type-safe clients, TanStack Query and SWR hooks, Zod validators, Faker mocks, and MSW handlers from one schema.
- Generate a typed axios or Fetch client with status-keyed results, auth, validation, file uploads, server-sent events, interceptors, and a swappable transport.
- Read OpenAPI 2.0, 3.0, and 3.1 through adapters like
@kubb/adapter-oas, with output for Node.js and Bun. - Enable only the plugins you need:
plugin-ts,plugin-axios,plugin-fetch,plugin-react-query,plugin-vue-query,plugin-swr,plugin-zod,plugin-faker,plugin-msw,plugin-cypress,plugin-redoc,plugin-mcp. - Shape the output by grouping files by tag, including or excluding operations, and writing to disk, memory, or a custom storage backend.
- Build your own plugins, generators, adapters, and renderers with the
kubb/kitauthoring toolkit, plus a JSX renderer for component-based output. - Run generation in your bundler with
unplugin-kubbfor Vite, Nuxt, Astro, webpack, and more. - Drive generation from AI tools over the built-in MCP server (Claude, Cursor) or inside Claude Code.
Supporting Kubb
Kubb is an open source project, and its development is funded entirely by sponsors. If you would like to become a sponsor, please consider:
Contributing
We welcome contributions that help improve Kubb. A few ways to get involved:
- Found a bug? File it in the issue tracker.
- Have an idea to improve Kubb? Open an issue to share it.
- Need help? Ask the community on Discord.
See CONTRIBUTING.md for the project structure, local setup, and commands.
Contributors 
License
This repository is licensed under the MIT License, Copyright © 2025 Stijn Van Hulle.
See LICENSE for details.
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README fetched from the repository 4 hours ago. The original is authoritative.