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Installation

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macOS and Linux

Install the latest stable release: 
curl -fsSL https://cli.promptingco.com/install.sh | bash
After install, confirm the binary is available: 
tpc --version

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Windows

Install with winget: 
winget install promptingcompany.tpc
Or install with Scoop after adding The Prompting Company bucket: 
scoop bucket add promptingcompany https://github.com/promptingcompany/scoop-bucket
scoop install tpc
PowerShell is also supported: 
irm https://cli.promptingco.com/install.ps1 | iex
If your execution policy blocks the installer, run this first in the same PowerShell session: 
Set-ExecutionPolicy -Scope Process Bypass
Manual fallback:
  1. Download the latest tpc_<version>_windows_amd64.zip or tpc_<version>_windows_arm64.zip from https://cli.promptingco.com/tpc/<version>/.
  2. Extract tpc.exe.
  3. Move tpc.exe to a directory on PATH, or add the new directory to PATH through System Properties -> Environment Variables -> Path.
  4. Open a new PowerShell or cmd session, then verify the install: 
    tpc --version

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Update

Check whether a newer CLI build is available: 
tpc update --check
Upgrade the installed binary in place: 
tpc update

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Install a specific version

Install a pinned version: 
curl -fsSL https://cli.promptingco.com/install.sh | TPC_VERSION=0.1.0-alpha.1 bash
Install from a release channel: 
curl -fsSL https://cli.promptingco.com/install.sh | TPC_CHANNEL=alpha bash
Putting the variable before curl (TPC_VERSION=... curl ... | bash) does not work — that assignment only applies to curl’s environment, not to the bash process reading the script on the other side of the pipe. The variable has to sit right before bash.

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Installer URL

The public installer is served from: 
https://cli.promptingco.com/install.sh
https://cli.promptingco.com/install.ps1