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
Get an email when Buttondown API's status changes.
Free — a minute to set up, checked from 4 regions around the clock.
How many of your clients depend on Buttondown API?
When Buttondown API slows down, every project that depends on it feels it at once — and the first call goes to whoever shipped it. Probecast watches the sites you ship and the providers underneath them, shows which clients an outage touches and turns each month into a report your client can trust.
One provider breaks. See every client it touches.
Ordered by how many clients it hits, so you message the right people first.
Each client's site and store, checked from four regions.
US West & East, Europe and Asia — a regional outage never hides.
A monthly report under your brand, reviewed by your team before it goes out.
Uptime, incidents, traffic, revenue and support — signed off by a person.
Your team scoped per client. Every change on the record.
Freelancers see only their clients; every change lands in an append-only audit log.
Alerts land on email, Slack, push or webhooks — with the client's name on them.
100.00%
UptimePercentage of time the API was available.
Only DOWN status impacts this metric.
376ms
Avg Latency
1,000+
APIs monitored
0
Outages
2
Degradations
This Month
About Buttondown's Buttondown API
Buttondown's Buttondown API manages newsletter subscriptions, campaigns, and subscriber data via Buttondown. Buttondown was founded in 2017 as a simple, privacy-friendly newsletter tool for writers.. The Buttondown API is used by developers worldwide for newsletter sending, subscriber management, email archives, automation, paid subscriptions.
Probecast monitors the Buttondown API from 4 global regions (US West, US East, Europe, Asia Pacific) every 5 minutes, tracking uptime, latency and regional availability. Our real-time monitoring helps developers and teams understand the current health of Buttondown's Buttondown API and get alerted the moment service degrades.
Why monitor Buttondown API?
If your product depends on Buttondown API for critical features, an outage on Buttondown's side is an outage on your product. Probecast detects Buttondown 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, Buttondown API is operational. The 30-day uptime is 100.00%, with 2 incidents recorded this month. Average response latency across all regions is 376ms.
●Uptime History
Regional Status
US West
154ms
latency
US East
114ms
latency
Europe
491ms
latency
Asia Pacific
744ms
latency
Latency (24h)
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Frequently Asked Questions
Recent Incidents
No incidents recorded
This API has been stable
API Information
Monitored Endpoint
https://api.buttondown.email/v1/subscribers