---
title: "tool si.act.install_pack"
description: "a brand, the pack and its version: the copies made, each naming its origin."
section: reference
address: /reference/tools/si-act-install_pack
contract: 0476e35e6e275db5
---

# tool si.act.install_pack

a brand, the pack and its version: the copies made, each naming its origin.

[figure: Over MCP, si.act.install_pack takes InstallPackInput and returns a card whose body is InstallPackAnswer.]

the copies made, each naming its origin. The call needs the act grant at the brand rung.



| | |
|---|---|
| input | [InstallPackInput](/concepts/installpackinput) |
| result | a card whose body is [InstallPackAnswer](/concepts/installpackanswer) |
| read-only | no |
| destructive | yes |
| card address | `ui://scale-intelligence/cards/InstallPackAnswer` |
| HTTP route | [`/v1/act/install_pack`](/reference/act/install_pack) |





| field | type | required | note |
|---|---|---|---|
| `brand` | `id` | yes |  |
| `template` | `id` | yes |  |
| `version` | `count` | yes |  |