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Klaviyo

Overview​

The Klaviyo connector lets you connect to Klaviyo using a private API key.

Current status:

  • Source: credential validation is supported; extraction is still in development.
  • Destination (Klaviyo Audiences): credential validation is supported; loading is still in development.

Authentication​

This connector authenticates with a Klaviyo Private API Key.

Create a Klaviyo API key​

  1. In Klaviyo, create or locate a Private API Key.
  2. Copy the key value and store it securely.

Required permissions​

The connector validates credentials by calling Klaviyo’s Accounts endpoint (/api/accounts/). Ensure the API key is permitted to access the account.

Setup​

  1. Create a new Klaviyo connection.
  2. Enter the API key in the connector configuration.
  3. Save and test the connection.

Configuration reference​

api_key (required)​

  • Type: string

  • Description: Your Klaviyo Private API Key.

  • How it’s used: Sent as an HTTP header in the format:

    Authorization: Klaviyo-API-Key <api_key>

API versioning​

The connector sends a Klaviyo API revision header:

revision: 2026-04-15

Streams​

No streams are currently exposed. The connector’s catalog and extraction are still in development.