API Monitoring for REST and HTTP Endpoints That Catches Bad Responses Fast
Your API can return a clean 200 and still be broken. Uptimehub monitors what the response actually contains, how fast it comes back, and whether it needs auth, so silent failures never slip through.
Checked from regions with auto-retry. No single-location false alarms.
All systems operational. Steady pulse across every region.
api.example.com returned no response from all 6 regions. Auto-retry confirmed the outage, then we alerted your team.
api.example.com is back up. The incident is logged to your status page history automatically.
90-day uptime · branded · your domain
Live demo · drive it, no signup needed
In short
API monitoring is the practice of continuously calling your REST or HTTP endpoints to confirm they return the right status code, the expected content, and acceptable response times. Uptimehub checks your API endpoints every minute from 6 global regions, validating the HTTP status code, searching the response body for a required keyword or JSON value, and measuring latency so you catch slowdowns before they become outages. You can send custom headers, bearer tokens, or API keys so authenticated endpoints are tested exactly as a real client would call them. When a response is wrong or slow, Uptimehub retries from other regions to rule out a network blip, then alerts you in seconds. Every request is read-only, so monitoring never changes data on your side.
What you get
API monitoring for developers, SaaS teams and agencies
Validate the response body
Match on a keyword or JSON value in the payload so an empty or malformed 200 is flagged as the failure it really is.
Watch latency and response time
Track how long each endpoint takes and get alerted when it drifts past your threshold, not only when it fully fails.
Authenticated endpoint checks
Send custom headers, bearer tokens, or API keys so protected routes are monitored just like your real integrations call them.
Status code assertions
Require a specific status code and treat anything else, including stray redirects and 500s, as an incident worth alerting on.
How it works
From URL to alert in four steps
Add your endpoint
Enter the API URL, method, and any headers or auth the endpoint requires.
We check from 6 regions
Uptimehub calls the endpoint every minute and asserts status, body, and latency.
Get alerted in seconds
A bad response triggers a cross-region retry, then an instant alert to your channels.
Track it on your status page
Add the endpoint to your public status page so customers see real API health.
FAQ
Questions buyers ask about API monitoring
API monitoring is the practice of calling your endpoints on a schedule from outside your network and checking that the response is correct, not just that something came back. A useful check verifies the status code, confirms an expected value in the JSON body, and fails if the response takes longer than your latency threshold.
Create a dedicated monitoring credential with read-only access to a single harmless endpoint, then send it as a header on each check. Never reuse a production admin token. A read-only health or account endpoint is ideal, because it exercises the auth path and the database without changing any data.
Uptime monitoring asks whether the service responds. API monitoring asks whether it responds correctly. An endpoint returning HTTP 200 with an error object in the body passes a basic uptime check and fails a proper API check, which is why response body assertions matter more for APIs than for marketing pages.
Every minute for any endpoint customers or integrations depend on. APIs fail more subtly than web pages, often as elevated latency or partial errors rather than a clean outage, so a tight interval is what makes the trend visible before it becomes a full failure.
Yes. Your customers experience a vendor outage as your outage, and vendors rarely notify you promptly. Monitoring the external services you call gives you your own timestamped record, which tells you immediately whether a problem is yours or theirs, and supports any service credit claim later.
Last updated July 2026
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Start monitoring in two minutes
Add a URL or endpoint and Uptimehub checks it every minute from 6 global regions, alerts you in seconds, and updates your branded status page. Read-only checks that never touch your servers.