Opensend x Klaviyo: Power Real-Time Identity Inside Your ESP

Francesco Gatti
August 12, 2025

We're thrilled to officially announce Opensend’s partnership with Klaviyo, making Opensend the first and only identity resolution provider in Klaviyo’s App Marketplace that supports third-party data.

Klaviyo merchants can now access Opensend directly from their dashboards and start converting anonymous traffic into actionable customer profiles, getting deeper value from your ESP.

Why This Partnership Matters

For marketing leaders and CRM managers, turning anonymous site visitors into known customers is a constant challenge. With this new partnership, you can now access Opensend directly from your Klaviyo account, allowing you to capture and convert more anonymous traffic effortlessly.

Turn Anonymous Traffic into Klaviyo Profiles

Identify who’s on your site and act on it instantly, all from your Klaviyo dashboard:

  • Capture and resolve anonymous traffic in real-time.
  • Enhance audience segmentation directly within Klaviyo’s platform.
  • Trigger high-converting flows the moment intent appears

Build smarter segments. Launch faster campaigns. Maximize the value of every visitor, without complexity.

Who Benefits?

  • Marketing leaders and CRM managers: Achieve higher ROI through targeted campaigns.
  • Ecommerce brands: Gain real-time intelligence to elevate customer experience.
  • Partner managers and tech decision-makers: Streamline data strategies and automation efforts.


Your Tech Stack Just Got Smarter

With Opensend and Klaviyo working together, brands can tap into real-time identity, richer customer insights, and smarter activation, all from inside their ESP.

Let’s make the most of your data, together.

“Thought it was too good to be true until we hit 20x ROI. We tried other services like Opensend but they didn't work for our clients. One of our clients is getting over 150 new leads a day and a 20x return on their investment with Opensend.”

Nehal Kazim

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