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About

About Shuriken

A harness for coding agents. It runs Claude Code, Codex and the rest on your own computers and servers, keeps every account you have in use, and lets you follow it all from your phone.

At a glance

  • Coding agents

    67 of them, from Claude Code and Codex to Gemini CLI, Copilot, Cursor and Amp.

  • Accounts

    Subscription sign-ins and API keys for Claude, ChatGPT (Codex), Gemini, Copilot, Cursor, Grok, Kimi, Qwen and more, several per provider, plus your own endpoints and local models (Ollama, LM Studio). Only accounts you own and are entitled to use; a provider's terms may not allow sharing a subscription sign-in.

  • Where it runs

    On macOS, Windows and Linux, and on servers with no screen. On your phone, the web app today; native iPhone and Android apps are coming. See Download.

  • When it switches accounts

    When the account in use reaches your switch point (99% by default, anywhere from 50%) or hits a limit. Claude Code chats move on their next request, other agents when their turn ends.

  • Agents at once

    Each chat can get its own branch and worktree, and Shuriken sets no limit: your machine and your plans do.

  • Local models

    Add a source with your own endpoint: an Anthropic- or OpenAI-compatible address, or a model on your own machine through Ollama or LM Studio.

  • Model usage

    Your agents run on your own Claude, ChatGPT and other subscriptions, or on your API keys, and those stay billed by their providers as they are now. Free costs nothing. Pro is €49 a month for Shuriken itself. We never send you a usage bill.

  • With the app closed

    A background service keeps your agents running with the app closed, and a Mac can keep working with its lid shut. For a machine without a screen, add a server.

  • Plans

    Free: 2 sources and 2 linked devices, no card. Pro: €49 a month or €490 a year (2 months free). See Pricing.

  • Who makes it

    Enkova s. r. o., a company registered in Slovakia. Write to office@shuriken.sh. The address and company IDs are under Who we are in the Terms of Service.

Official accounts

Shuriken's own accounts on other sites, one name on each: shurikenharness.

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