Headless Klaviyo CLI

The Headless Klaviyo command line interface offers a way to manage Klaviyo campaigns, flows, segments, and universal content blocks through the command line and as files. For guidance on other tools developers can use to manage their Klaviyo resources, see the Klaviyo Developer Portal.

Setup

Install pipx

If you don't have it installed already, install pipx

On macOS

brew install pipx
pipx ensurepath

On Linux

sudo apt update
sudo apt install pipx
pipx ensurepath

On Windows

scoop install pipx
pipx ensurepath

For more information, including instructions on how to install pipx using pip, refer to the pipx installation guide.

Install the Klaviyo CLI

Use pipx to install the Klaviyo CLI:

pipx install headless-klaviyo

Test that the klaviyo command can now be used:

klaviyo --help

Basic usage

The command is invoked by entering klaviyo followed by a subcommand name and the relevant options for that subcommand.

If you aren't sure what options and arguments to specify for a subcommand, use the --help option for that command. For example, to see the available options for the get campaigns subcommand, enter:

klaviyo get campaigns --help

Example command:

klaviyo get campaigns --overwrite-mode keep-local --api-key pk_0000

Commands require a private API key to authenticate requests to Klaviyo. See how to create a private API key for information. The API key can be specified with the --api-key command or by setting the KLAVIYO_API_KEY environment variable.

Command listing

The following examples omit the --api-key command and assume that you have set the KLAVIYO_API_KEY environment variable.

get

The get command retrieves resource definitions from Klaviyo and stores them to local files.

Retrieve an individual file with the block, campaign, flow and segment subcommands. These commands should be followed by the ID of the resource to retrieve.

For example, to retrieve the definition of the segment with ID R6qs5F, use the following command:

klaviyo get segment R6qs5F

This command will save the segment definition to a subfolder of the working directory named segments by default. This can be changed using the --segment-path option, or the equivalent for the other resource types.

By default, you will be prompted to confirm that you would like to overwrite an existing file if one exists. You can change this behavior with the --overwrite-mode option.

For example, the following command retrieves the segment to the file resources/segments/segment-R6qs5F.json, and overwrites that file if it already exists without asking for confirmation.

klaviyo get segment R6qs5F --overwrite-mode overwrite --segment-path resources/segments

Use the --stdout flag to indicate that the get command should print the retrieved definition to STDOUT, and should suppress all other output. See the Usage examples section below for examples of how to use this in combination with other commands.

You can retrieve all resources of a type at once using the plural versions of the subcommands: blocks, campaigns, flows and segments. These commands support all options that the singular versions do, and do not require a specified resource ID.

If you want to retrieve all four supported resource types, use the all subcommand. To request informative output related to each created or modified file, use the --verbose flag, as follows:

klaviyo get all --verbose

inspect

The inspect command outputs a table with information about a resource based on a local resource definition file. The supported subcommands are block, campaign, flow, and segment.

The file to inspect can be specified with the relevant file or ID command options. For example, the following are equivalent ways to inspect the flow definition stored in the file flows/flow-QWEbek.json:

klaviyo inspect flow --flow-id QWEbek
klaviyo inspect flow --flow-file flow-QWEbek.json

If neither of these options is specified, the command will read in a definition from STDIN.

The folder that stores the definition files can be specified using the relevant path option (e.g. --flow-path).

generate

The generate command creates a local resource definition file for a new resource. The supported subcommands are campaign and block.

These commands will prompt you for parameters that are not provided as command options. For example, the following command will create a campaign definition file with the name attribute "Test Campaign", and then will interactively prompt you to select the lists and segments to use for the campaign audience from those that exist in your Klaviyo account, the campaign send strategy, and other parameters:

klaviyo generate campaign --name "Test Campaign"

Once a resource definition file is created with the generate command, it can be edited further with the text editor of your choice. Once edited, use it to create a resource with the create command.

Newly-created resources may require additional steps to utilize. For example, a template must be attached to an email campaign and its status updated to live. See the Campaigns API and Universal Content API overviews for more information.

create

The create command creates a new Klaviyo resource based on a local definition file. The supported subcommands are block, campaign, flow, and segment.

The file is specified with the --segment-file option for segments, and the equivalent for other resource types. After creating the resource, the result will be saved to a new file with its assigned ID in the specified resource path (e.g. for a segment, the path specified with --segment-path, default segments).

Example creation of a segment based on a definition file named new_segment_1.json in the segments path:

klaviyo create segment --segment-file new_segment_1.json

The definition file used to create a resource must not already have an ID. If no file option is specified, the command will read from STDIN.

update

The update command updates an existing Klaviyo resource to match a local resource definition. The supported subcommands are block, campaign, flow, and segment. Note that flow resources are only partially supported. Only the status attribute for existing flows can be edited, not other flow attributes.

The file can be specified with either the relevant file or ID parameters, for example --campaign-file or --campaign-id for campaigns. If neither is specified, the command will read the definition in from STDIN.

delete

The delete command deletes a Klaviyo resource. The supported subcommands are block, campaign, flow, and segment.

The subcommand name should be followed by the resource ID of the resource to delete. This removes the resource from your Klaviyo account, and does not modify or delete local definition files. You will be prompted with a warning before the resource is deleted.

Warning: this operation cannot be undone.

To delete the segment with ID R6qs5F:

klaviyo delete segment R6qs5F

About resource definition files

The resource definition files stored by these commands generally match the format of the data section of the json:api payload used for interacting with the Klaviyo API. For specifics on the formats of these resource definitions, refer to the Klaviyo API documentation. For example, the campaign data model is described in the Campaigns API overview.

One minor difference is that the resource definition files created through this CLI exclude some information that changes every time the API is called, such as the screenshot URL for universal content blocks and the updated date for all resource types.

Additional usage examples

Here are some additional examples of how you can use these commands in combination. Note that the specific ways to accomplish these tasks may vary based on your operating system.

The get command with the --stdout flag can be used to compare a remote resource definition to the local version by piping it into the diff command. The following compares the remote version of the segment R6qs5F to an existing local definition file:

klaviyo get segment R6qs5F --stdout | diff - segments/segment-R6qs5F.json

You can also inspect a remote resource without saving it first by piping the output of the get command into the inspect command:

klaviyo get segment R6qs5F --stdout | klaviyo inspect segment

If you would like to create a new resource that is a copy of an existing resource, copy that resource definition file, rename the copied file, remove the line in the file that specifies the ID, and use the new file with klaviyo create. Alternatively, as a combination of commands:

cat segments/segment-R6qs5F.json | sed '/"id": /d' | klaviyo create segment

Development setup

If you want to make changes to the program or contribute changes, you can set it up for local development.

Clone this project to your local machine, then build it with the following command:

python -m build

Next, install the generated whl file. Note that the exact file name may differ. To confirm the file name, check the output of the build command.

pip install dist/headless_klaviyo-0.1.0-py3-none-any.whl

Use the --force-reinstall flag if you've previously installed the package.

Contributing

We welcome contributions from the community! If you'd like to contribute, please follow these steps:

1. Fork the repository and create a new branch for your changes.
2. Make your changes. Do your best to have your changes match the existing structure and style.
3. Submit a pull request (PR) with a clear description of your changes.
4. Wait for review – we'll provide feedback and merge once it's ready!

You can also report any bugs you find by opening an issue in this GitHub repo.