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You can install the CLI with a curl utility script, brew or by downloading the binary from the releases page. Once installed you'll get the faas-cli command and faas alias.


Utility script with curl:

$ curl -sSL | sudo -E sh

The flag -E allows for any http_proxy environmental variables to be passed through to the installation bash script.

Non-root with curl (requires further actions as advised after downloading):

$ curl -sSL | sh

Via brew:

$ brew install faas-cli


The brew release may not run the latest minor release but is updated regularly.

In PowerShell:

$version = (Invoke-WebRequest "" | ConvertFrom-Json)[0].tag_name
(New-Object System.Net.WebClient).DownloadFile("$version/faas-cli.exe", "faas-cli.exe")

Running faas-cli with sudo

If you're running the faas-cli with sudo we recommend using sudo -E to pass through any environmental variables you may have configured such as a http_proxy, https_proxy or no_proxy entry.

Docker image

The faas-cli is also available as a Docker image making it convenient for use in CI jobs such as with a Jenkins pipeline or a task in cron.

There is no "latest" tag, so find the version of the CLI you want to use from the tags page on the Docker Hub. These correspond to the release from GitHub.

Build from source

The contributing guide has instructions for building from source and for configuring a Golang development environment.

Tutorial: learn how to use the CLI

Morning coffee with the OpenFaaS CLI