Stack Health Score
Score = 30-day uptime − penaltiesLatency >500ms: −2 | >1000ms: −5
Outages this month: −2 each
Degradations this month: −1 each
Uptime · Latency · Incidents
Does your product depend on Klaviyo API?
Be told next time — before you come looking. Monitor Klaviyo API alongside your whole stack, free for 30 days.
99.89%
UptimePercentage of time the API was available.
Only DOWN status impacts this metric.
212ms
Avg Latency
1,000+
APIs monitored
1
Outages
3
Degradations
This Month
About Klaviyo's Klaviyo API
Klaviyo's Klaviyo API automates e-commerce email and SMS flows with deep behavioral segmentation via Klaviyo. Klaviyo was founded in 2012 and is the leading marketing platform for e-commerce brands.. The Klaviyo API is used by developers worldwide for email automation, SMS flows, audience segmentation, revenue attribution, e-commerce triggers.
Probecast monitors the Klaviyo API from 4 global regions (US West, US East, Europe, Asia Pacific) every 300 minutes, tracking uptime, latency and regional availability. Our real-time monitoring helps developers and teams understand the current health of Klaviyo's Klaviyo API and get alerted the moment service degrades.
Why monitor Klaviyo API?
If your product depends on Klaviyo API for critical features, an outage on Klaviyo's side is an outage on your product. Probecast detects Klaviyo API incidents as they start, giving you time to communicate with customers, fall back to alternative services or pause background jobs gracefully.
Current status
As of the latest check, Klaviyo API is operational. The 30-day uptime is 99.89%, with 4 incidents recorded this month. Average response latency across all regions is 212ms.
●Uptime History
Regional Status
US West
302ms
latency
US East
119ms
latency
Europe
139ms
latency
Asia Pacific
289ms
latency
Latency (24h)
Klaviyo API is one of 1,000+ services Probecast watches for you
Checking a status page during an incident means your users already noticed. Probecast flips that: it tells you first — and shows what the outage costs.
Checked from 4 regions
US West & East, Europe and Asia — a regional outage never hides.
Alerted the moment it degrades
Slack, email, Teams or webhooks — the moment it happens.
Your whole stack, one screen
1,000+ catalog APIs plus your own endpoints, websites and cron jobs.
Your business view: traffic & revenue
Google Analytics, Probecast Pixel, Stripe, Polar, Lemon Squeezy & more — beside your uptime.
2-minute setup · no DevOps team needed · cancel anytime during the trial
Frequently Asked Questions
Recent Incidents
API Information
Monitored Endpoint
https://a.klaviyo.com/api/accounts/