// Run commands & scripts
bunbun-v1.4.2
Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one
Open source Maintained For agents
IN ONE PARAGRAPH
bun is incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one.
Good for: Developers who want their agent (Claude Code, Codex, Cursor…) to run commands & scripts.
01How to start
- 1Read the official README for requirements and permissions.
- 2Install it from the official package registry:
npm install bunpip install pybun - 3Tell your agent the command exists (e.g. in AGENTS.md / CLAUDE.md) so it knows when to call it.
02Alternatives & comparison
Compare side by side → deno A modern runtime for JavaScript and TypeScript. ★ 109k pnpm Fast, disk space efficient package manager ★ 37k prettier Prettier is an opinionated code formatter. ★ 52k biome A toolchain for web projects, aimed to provide functionalities to maintain them. Biome offers formatter and linter, usable via CLI and LSP. ★ 26k node Node.js JavaScript runtime ✨🐢🚀✨ ★ 122k
03Related
- ›Hugging Face AI Agents Course · Hugging FaceMultilingual (incl. EN/ZH)
- ›huggingface/agents-course · Hugging FaceEnglish
- ›AI Agents for Beginners · MicrosoftMultilingual (incl. EN/ZH)
- ›Building effective agents · AnthropicEnglish
- ›OpenAI: A practical guide to building agents · OpenAIEnglish
- All tutorials →
Versions, why it is listed, for AI to read
Recent releases
- bun-v1.4.2 2026-09-05
- bun-v1.4.1 2026-09-04
- bun-v1.4.0 2026-08-20
- bun-v1.3.14 2026-05-13
- bun-v1.3.13 2026-04-20
For AI agents
- Interfaces：CLI
- Machine-readable record：/api/v1/software/bun.json · llms.txt
- Added 2026-10-10 · updated 2026-10-22