API key expiry monitoring so an integration doesn't break without warning
An API key or access token that quietly expires doesn't announce itself — it shows up as a support ticket, a failed webhook, or a job that's been silently failing since 2am. API key expiry monitoring keeps a date on every key that has one, so the expiry is expected instead of discovered.
Why API keys are easy to lose track of
Unlike a domain or a certificate, there's no independent, public place to check whether an API key or token is close to expiring — the expiry date exists only inside the provider's dashboard, if the provider shows one at all. Keys also tend to get created in the moment, by whoever is setting up an integration, and rarely make it onto any list afterward.
The failure mode is also harder to diagnose than most. A certificate expiring produces an obvious browser warning; an expired API key produces a generic authentication error that could mean a dozen different things, on a system that might not be the first place anyone looks. The gap between "it broke" and "it broke because the key expired three days ago" is often the most expensive part of the incident.
What API key expiry monitoring should do
The details that turn a scattered set of tokens into something a team can actually stay ahead of.
A record of every key with an expiry
Not every key expires, but the ones that do need to be listed somewhere other than the provider's dashboard and whoever set them up.
The expiry date, not the secret
Tracking needs to know when a key expires without ever needing to store the key itself.
A warning before the integration breaks
The useful moment to act is before the key stops working, with enough time to generate and roll in a replacement.
Grouped with what the key belongs to
A key tracked next to the service or integration it authenticates is far more useful than one in a list with no context.
Shared, so it's not one engineer's memory
Whoever created the key is often not the person who'll be on call when it expires.
No special treatment needed for how odd the expiry is
Some keys last 30 days, some last a year — the system tracking them shouldn't care which.
How RenewKeeper tracks API key expiry
Who this is for
Developers
Anyone who's had an integration fail in production because a token expired with no warning.
IT & ops teams
Third-party and internal API credentials tracked alongside the certificates and domains they sit next to.
Agencies building integrations
Client projects that use several third-party APIs, each with its own key and its own expiry policy.
Common questions
What is API key expiry monitoring?
Does it store the API key itself?
How does it know when a key expires if there's no public record?
Can I track keys for different services in one place?
Is there a free way to track API key expiry?
Related reading
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