Claude Code ecosystem

orca

Fan one prompt across five agents, keep the best answer

Visit official page 日本語で詳しく見る

Popularity

★ 45k

Last update

August 2026

License / pricing

MIT

What it does

Runs Codex, Claude Code, OpenCode or Pi side by side, each in its own git worktree so their edits never collide, then lets you compare the results and merge the winner. A companion mobile app notifies you when an agent finishes and takes follow-up instructions from wherever you are. Fanning out multiplies cost roughly by the number of agents, and leaves several worktrees to reconcile, so decide the cleanup rule before you start. MIT.

Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.

Screenshots & visuals

Before you start

Setup difficultySome setup needed
Command lineRequired
API keyRequired
Sends data onlineYes

Judged automatically from the project's own metadata. Always confirm on the official page.

orca FAQ

Is orca free?: orca itself is free, but it needs an API key for an external AI service. That service charges separately, though some have a free tier.
Do I need to install anything or write code to use orca?: It needs the command line. If you are not comfortable typing commands, expect to get stuck during setup.
Does orca work on a phone?: No. It needs a computer.
Can I use orca commercially?: The licence is MIT, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.

How it compares

The conditions that decide whether you can actually use it, side by side.

Tool	Command line	API key	Sends data out	Phone	Commercial use
orca (this page)	Required	Required	Yes	No	Yes
Claude Code	Required	Required	Yes	No	Not verified
taste-skill	Required	Required	Yes	No	Yes
rtk	Required	Not needed	No	No	Yes

"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.

Other claude code ecosystem tools

Claude Code

Anthropic's AI coding partner that lives in your terminal

taste-skill

Skills that stop AI-built interfaces from looking like every other one

rtk

Compresses command output before your agent pays to read it

Claude Flow

Run many Claude Code agents in concert

Browse all tools Home

What it does

Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.

orca FAQ

Is orca free?

orca itself is free, but it needs an API key for an external AI service. That service charges separately, though some have a free tier.

Do I need to install anything or write code to use orca?

It needs the command line. If you are not comfortable typing commands, expect to get stuck during setup.

Does orca work on a phone?

No. It needs a computer.

Can I use orca commercially?

The licence is MIT, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.

How it compares

The conditions that decide whether you can actually use it, side by side.

Tool	Command line	API key	Sends data out	Phone	Commercial use
orca (this page)	Required	Required	Yes	No	Yes
Claude Code	Required	Required	Yes	No	Not verified
taste-skill	Required	Required	Yes	No	Yes
rtk	Required	Not needed	No	No	Yes

"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.