Get capa on Windows, macOS or Linux Now!
One capabilities.yaml wires skills, tools, rules, sub-agents, MCP servers, and plugins into Cursor, Claude Code, Codex, Windsurf, GitHub Copilot, and 30+ other AI coding agents
Get capa with one command
Pick your system, reveal the step-by-step guide, copy the command, paste it into your terminal and press Enter. This command was taken from the project's own documentation and checked against it.
Not available for Windows yet.
capa doesn't publish an install command for Windows anywhere we can verify, so there's nothing for us to show you. We won't invent one. It does document one for macOS and Linux — switch to that tab.
Pastes into PowerShell and installs capa on your Windows machine in one step — no manual setup, no build tools. It fetches the project's own install script and runs it, which is the standard way these tools ship — worth a read if you like to know what's running.
Not available for macOS yet.
capa doesn't publish an install command for macOS or Linux anywhere we can verify, so there's nothing for us to show you. We won't invent one. It does document one for Windows — switch to that tab.
Pastes into your terminal and installs capa on your macOS or Linux machine in one step — no manual setup, no build tools. It fetches the project's own install script and runs it, which is the standard way these tools ship — worth a read if you like to know what's running.
How to set up capa, step by step
On Windows, open PowerShell (press Win, type PowerShell, hit Enter) and paste the command. On macOS or Linux, open Terminal — on a Mac it's in Applications ▸ Utilities, or press Cmd+Space and type Terminal — and paste the command there.
Run capa --help to see the available commands, and
capa --version to confirm the install worked. If your shell complains about
permissions, that project usually documents a corrected command on its own site.
This asks PowerShell to download a small installer script from the project, then execute it in memory. Nothing is saved to disk. The script is the project's own, but it's worth reading it first — that's why there's a note above.
What capa does
- MCP gateway — one local endpoint per agent; CAPA proxies upstream MCP servers, lazy-loads tools on demand, and filters tools per sub-agent
- Local Web UI — interactive capabilities editor with live YAML sync, registry browse, OAuth setup, and drag-to-reorder
- Activity traces — live feed of every MCP call, shell tool, and agent span on the project page
- Plugins that unpack — Claude and Cursor plugins decompose into skills, MCP, rules, sub-agents, and hooks
- Registries — browse skills.sh, Cursor Marketplace, Claude plugins, and Claude marketplace catalogs
- MCP gateway — one endpoint per project; CAPA proxies stdio / HTTP / SSE servers, applies formatters, and records activity
Summarised from capa's own README.
About capa
One capabilities.yaml wires skills, tools, rules, sub-agents, MCP servers, and plugins into Cursor, Claude Code, Codex, Windsurf, GitHub Copilot, and 30+ other AI coding agents
| Category | AI agent |
|---|---|
| Install method | PowerShell one-liner (irm | iex) |
| Windows | documented install command available |
| macOS / Linux | documented install command available |
| Price | Free and open source |
| Command verified | Yes — checked against the project README |
| Popularity | 727 stars on the project's public repository |
On mobile
capa is a command-line tool, so there is no phone app for it — a phone has no shell to run it in. You'll need a desktop, or a remote shell into a machine that has one.
The project's own page is capa.sh
capa is developed by its own authors. This page is an independent reference; we are not affiliated with or sponsored by the project. The command shown here was reproduced from the project's public documentation — always check the project's own documentation before running anything.