Monitor Your APIs Stay Online 24/7
Get instant alerts when your APIs go down. Monitor uptime, response times, and performance with real-time email notifications.
No credit card required • Free tier available
Get instant alerts when your APIs go down. Monitor uptime, response times, and performance with real-time email notifications.
No credit card required • Free tier available
Most API outages are not discovered by the team that owns the API. They are discovered by a customer, a support ticket, or a failed checkout - usually hours after the endpoint first started returning errors. An expired TLS certificate, a deployment that quietly broke a route, a database connection pool that ran dry overnight: none of these announce themselves.
External monitoring closes that gap. ApiMoni calls your endpoints on a schedule you choose, from outside your own infrastructure, and records what actually came back - the HTTP status code, the response time, and the error if there was one. When something breaks you hear it from us first, with enough detail to know whether it is a total outage or a slow endpoint creeping toward one.
Running the check outside your own servers is the part that matters. A health check that lives on the same machine as the service it watches goes down with it. ApiMoni keeps watching when your infrastructure stops answering, which is precisely when you need to know.
Features
Simple, powerful, and reliable API monitoring for developers and businesses.
ApiMoni calls each of your endpoints on its own schedule, as often as once a minute. Every check records the HTTP status code and how long the response took, so you can see the state of every API at a glance instead of guessing.
When a check fails you get an email naming the endpoint, the status code it returned, and the error. When it starts responding again you get a separate recovery notice, so you always know whether an incident is still open or already resolved.
Response times are charted over your full retention window, so a gradual slowdown is visible long before it becomes an outage. Set a response time threshold per endpoint and get alerted when a call is slow even though it technically succeeded.
Every check is stored, so uptime is calculated from real history rather than estimated. Review how each API has behaved over 30, 90, or 365 days depending on your tier - useful for reporting and for post-incident review.
Monitor every service you run from a single dashboard, each with its own HTTP method, check interval, and alert thresholds. Check a payment API every minute and an internal reporting job far less often - the schedule belongs to the endpoint, not the account.
Enable the daily certificate check on any HTTPS endpoint and ApiMoni tracks its expiry date, issuer, and validity. Warnings escalate as the date approaches instead of repeating, so an expiring certificate gets noticed without filling your inbox.
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Checks run on ApiMoni's own infrastructure, not yours. There is nothing to install, no agent to keep updated, and no shared failure mode - if your servers stop answering, the thing watching them is still running.
Paste a URL, pick a check interval, and monitoring starts. No credit card, no configuration files, and no code changes to the API you are monitoring - ApiMoni only needs to be able to reach it.
How it works
Give ApiMoni the URL you want watched and choose the HTTP method. Set how often it should be checked and, if it is an HTTPS URL, whether to watch the TLS certificate too. Nothing needs to change on your side - no agent, no SDK, no new route to expose.
A background service calls your endpoint at the interval you picked and stores what came back: the status code, the response time, and any error message. Those records build the uptime percentage and the response time chart you see on the dashboard.
A failed check, a response slower than your threshold, or a certificate approaching expiry triggers an email straight away. Recovery sends its own notice, so an alert in your inbox always tells you the current state and not just that something happened at some point.
Use cases
When your product is an API, downtime is the product failing. Monitor your public endpoints and your login and billing routes at a one-minute interval so you find out before your customers do. The stored check history also gives you real numbers to put in a status update or an uptime report, instead of an estimate written after the fact.
Checkout depends on APIs you do not control - payment gateways, shipping rate lookups, tax and inventory services. Monitoring each one separately tells you which link in the chain broke when orders stop completing. Response time thresholds matter here too: a payment API that takes eight seconds is abandoning carts even though every check technically succeeds.
Internal tools, scheduled jobs, and back-office integrations tend to fail quietly, because nobody is watching them at 3am and no customer complains. A check every few minutes and an email when it fails is often the entire monitoring story these services need - and certificate expiry alerts catch the renewal everyone forgot was due.
Pricing
Start free and upgrade as you grow. No hidden fees.
For growing businesses
TBD
Pricing to be announced
For large organizations
TBD
Pricing to be announced
Have questions? We'd love to hear from you. Send us a message and we'll respond as soon as possible.
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