Klaviyo API changes

How to track Klaviyo API changes

The Klaviyo API evolves without warning — endpoints move, parameters change, auth scopes tighten and old fields get deprecated. apik.dev watches the public Klaviyo API documentation for you: we scrape it on a schedule, diff every revision and grade each change as breaking or informational. Instead of re-reading the Klaviyo changelog by hand, you get a clean, dated record of exactly what changed — and why it matters.

Get notified when the Klaviyo API changes

Subscribe to Klaviyo and apik pages you by email or webhook the moment a change is detected — with the full diff, a severity grade and a short migration summary. Filter to Klaviyo breaking changes and deprecations only, so you hear about what will actually break your integration and nothing else.

How do I track Klaviyo API changes?

apik.dev tracks the Klaviyo API for you. We scrape the public Klaviyo API documentation on a schedule, diff every revision and grade what changed — so you never have to re-read the Klaviyo changelog by hand. Subscribe once and we monitor it continuously.

How do I get notified when the Klaviyo API changes?

When apik detects a Klaviyo API change, you're notified by email or webhook within hours — with the full diff, a severity grade (breaking vs. informational) and a short migration summary. You can choose to be alerted on breaking changes only.

What kinds of Klaviyo API changes does apik detect?

Endpoint changes, base-URL changes, authentication and parameter changes, schema changes and deprecations. Every Klaviyo API change is categorised and severity-graded so you can triage at a glance.

How often is the Klaviyo API checked for changes?

apik re-checks the public Klaviyo documentation on a daily schedule. The most recent check for Klaviyo ran on Jun 20, 2026.