The new Slack platform and the features described below are in beta and under active development.

Using the Slack CLI

The command line interface allows you to interact with your apps via, you guessed it, the command line. Using the main command slack, you can create, run, and deploy apps, as well as create triggers, query datastores, and more.

To check out more commands, head over to commands page.

CLI download

The command line interface is meant to make the process of creating new apps, running them, and deploying them easier. Binaries are available for several platforms.

The slack CLI is currently at version v1.20.0. See the changelog for details.

  Download for macOS (.tar.gz)

  Download for Linux (.tar.gz)

  Download for Windows (.zip)

The apps that you create with the CLI are Deno projects, so Deno is a prerequisite. If you do not have Deno installed, please do that first.

Existing slack binary in path?

If you happen to have another CLI tool in your path called slack, we recommend renaming our slack binary to a different name before adding it to your path.

Slack SDK

Use the Slack CLI in tandem with our SDK to access our API, additional documentation, and code libraries.

Click here to see version 1.6.0 on GitHub.


After you download the CLI, you'll need to authorize the CLI in your workspace. Follow the Quickstart guide to set up authorization and to begin building your first app.

Version update notifications

Once a day, the CLI checks for updates after running any command. When an update is available, a notification will be displayed with a link where you can find and download the new version.

Update notifications can be disabled using a command-line flag or an environment variable. When running any command, you can append the --skip-update or -s flag. Alternatively, you can set the SLACK_SKIP_UPDATE environment variable and assign it any value.

⤵️ For more details about how to use flags, read on!

Global flags

Flag Description
--apihost string Slack API host (default:
-f, --force Ignore warnings and continue executing command
h, --help Help for slack commands. Use this flag with any command (e.g. slack create --help) for more information about a specific command
-l, --local-run run User the local run app created by the run command
--no-prompt Use promptless version of command, if supported
-r, --runtime string Project's runtime language: deno, deno1.1, deno1.x, etc. (default: deno)
-s, --skip-update Skip checking for the latest version of the CLI
--slackdev Use the Slack Dev API (
v, --verbose Set to print debug logging. When used with the validate command, you will be prompted to choose an AppID to validate against.
-w, --workspace string Set a specific workspace by domain name

Integrating the CLI into a pipeline

In addition to being useful for setting up new projects and for local development, the CLI can be integrated into test and deployment pipelines for continuous integration and continuous deployment (CI/CD) and other "headless" automation.

Running in a headless mode first requires authorization using the --auth flag, and passing along a user token. The token, however, will require implementing logic to continually rotate it, since tokens obtained via slack login will expire after a certain amount of time. This will generate the authorization credentials required in a ~/.slack directory. Removing this directory will remove the authorization.

Once authorized, any slack command can be run as normal, and will use the established authorization.

Start creating

To start creating an app, check out the create or remove an app page.

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