API availability monitoring means checking whether an endpoint returns the response your application can use, not merely whether a server answers. AlwaysQA lets you monitor a public HTTPS endpoint on a Daily or Weekly schedule and validate its status, response time, headers, JSON values, or expected text in one deterministic Run.
An endpoint can return 200 OK and still be broken. It may take too long, omit a required header, report a degraded health state, or return a payload that no longer matches what the consuming application expects.
Reality check: Most teams don’t have an uptime gap. They have a contract-validation gap: the endpoint is technically reachable while the response is operationally useless.
The use case at a glance
| Scheduled API check with AlwaysQA | |
|---|---|
| Endpoint | A publicly reachable HTTPS URL, with optional stored authentication |
| Request | GET, HEAD, POST, PUT, PATCH, or DELETE, plus permitted headers and an optional body |
| Response Expectations | Status code, response-time limit, required header, JSON value, or expected text |
| Execution | One deterministic request with no model interpretation and no automatic retry |
| Outcome | Passed, Failed, or Needs Attention |
| Evidence | Focused response and expectation details without storing complete requests, responses, cookies, or credentials |
This isn’t load testing, distributed tracing, or high-frequency incident paging. It’s a repeatable contract check for an endpoint your product depends on.
A practical example: the health endpoint is green but the service is not
Suppose a SaaS application depends on a public health endpoint:
GET https://api.example.com/health
Expected status: 200
Maximum response time: 1,000 ms
Expected JSON value: /status = "healthy"
At 08:00, the endpoint returns this response:
{
"status": "degraded",
"region": "eu-central"
}
A basic uptime check may stay green because the server responded with 200. The consuming application may still need to treat that service as unavailable.
AlwaysQA evaluates every saved Response Expectation. In this example:
- the status-code expectation passes;
- the response-time expectation may pass;
- the
/statusexpectation fails because"degraded"doesn’t equal"healthy".
The Run receives a Failed Outcome because the response didn’t match the contract defined in the Test Case. The Evidence shows which expectation failed, so the team doesn’t have to reconstruct the problem from a generic downtime alert.
That is the core workflow:
Define the usable response → repeat the request → evaluate every expectation → investigate the mismatch.
Availability is a response contract, not a ping
“Did the server respond?” is only one layer of API availability.
The application may depend on several conditions at once:
| Response condition | What it protects against | Example |
|---|---|---|
| Status code | Errors, unexpected redirects, or changed endpoint behavior | Response must be 200 |
| Response time | A technically successful response that arrives too late to be useful | Complete in under 1,000 ms |
| Required header | Missing version, content, caching, or correlation information | Content-Type includes application/json |
| JSON value | A valid payload carrying the wrong state or value | /status equals "healthy" |
| Expected text | A plain-text or body response that no longer contains a required marker | Body contains service available |
Every expectation matters. A Run passes only when all saved expectations pass.
Keep the expectation set small. Every header or JSON field you monitor becomes part of a contract someone has to maintain. If a harmless payload refactor changes an incidental field, a brittle check creates noise. Monitor the values that determine application behavior, not every field the endpoint happens to return.
Google Cloud’s overview of Apigee API Monitoring makes the same broader operational point: availability, performance, faults, and diagnosis belong together. AlwaysQA applies that idea to one scheduled request and the exact response conditions you define.
Turn a public endpoint into an API Test Case
Create an API Test Case for the endpoint you want to monitor. Configure:
- the request method;
- the public HTTPS URL;
- permitted request headers;
- an optional request body;
- the timeout;
- one or more Response Expectations.
AlwaysQA supports GET, HEAD, POST, PUT, PATCH, and DELETE.
For an endpoint that requires authentication, you can use a securely stored Bearer token, header key, or HTTP Basic credential. The credential is used to make the request but isn’t copied into the Run Evidence.
Run the Test Case manually while setting it up. This confirms that the URL is reachable, the credential works, the body is valid, and the expectations describe the response you actually need.
If you need help deciding what to validate, the API testing prompt library can help turn an endpoint contract into concrete checks.
Why one request and no retry is a feature
AlwaysQA makes one deterministic request per API Run. There is no model interpreting the payload and no automatic retry hiding the first result.
You see the first observation, not a cleaned-up average.
That decision creates a clean record. If the request returns 500, takes 1,340 ms against a 1,000 ms limit, or omits a required JSON value, the Run evaluates what happened on that attempt.
Retries can be useful in a high-frequency alerting system. They reduce noise from short network failures and help teams avoid paging on a single transient result. They can also hide the first failure your application would have experienced.
AlwaysQA chooses evidence over smoothing. If you want retry-based incident alerting, use it alongside this check. Don’t expect one tool to answer both “should we page someone now?” and “did this exact scheduled request satisfy our contract?”
This is where latency and API limits become practical rather than abstract. Set a response-time expectation your application can tolerate, then treat a breach as a visible contract failure instead of averaging it away.
Schedule the same API request Daily or Weekly
Start with an on-demand Run. Once the Test Case produces the expected Outcome and Evidence, add a Daily or Weekly Schedule.
Use a Daily Run for endpoints tied to product access, checkout, authentication, imports, or another frequently used dependency. A Weekly Run may be enough for stable integrations or supporting endpoints that change less often.
Be precise about the coverage. Daily and Weekly checks don’t provide minute-level detection. Microsoft documents Application Insights availability tests for teams that need frequent, multi-location requests and alerting. That category of tool is a better fit for rapid outage paging.
That’s a different job for AlwaysQA: repeat one saved request, evaluate application-specific response expectations, and preserve focused Evidence that’s easy to turn into an issue.
Use the monitoring-check prompt library to decide which endpoints deserve a schedule and which conditions should trigger a failure.
Understand Passed, Failed, and Needs Attention
Scheduled and on-demand API Runs use the same Test Case and return one of three Outcomes.
Passed
The endpoint was reached and every Response Expectation passed.
Failed
The response was evaluated safely, but at least one expectation did not match. Examples include:
- an unexpected status code;
- a response above the saved time limit;
- a missing required header;
- an incorrect or absent JSON value;
- expected text missing from the body.
Needs Attention
AlwaysQA couldn’t reach the endpoint or couldn’t evaluate the response safely enough to call the application behavior broken.
That separation prevents an execution problem from becoming a false Failed Outcome. “The endpoint violated the saved contract” and “the Run couldn’t reach a trustworthy conclusion” are different operational facts.
Evidence that explains the failure without copying the payload
An Outcome is only useful when the team can understand why it happened.
AlwaysQA retains focused API Evidence, including:
- the response status;
- response time;
- the result of each expectation;
- safe correlation identifiers;
- relevant parsing details.
It doesn’t retain complete requests, complete responses, authorization headers, cookies, or credentials as Run Evidence.
That boundary matters when payloads can contain customer data, tokens, internal identifiers, or other information that doesn’t belong in an issue report. The Evidence should explain the mismatch without becoming a second copy of the exchange.
For a Failed Run, you can create an editable Markdown Issue Report with a concise description of the failed expectation. The team gets a useful handoff without exposing the endpoint’s stored credential.
Explore the broader AlwaysQA testing features to see how Runs, Outcomes, and Evidence fit together.
Which endpoints are good candidates?
Start with endpoints where a wrong response would break a customer flow or block an important internal process.
| Endpoint | Useful expectations | What failure could affect |
|---|---|---|
| Health or readiness endpoint | 200, response time, JSON health state | Deployments, routing, or service availability |
| Authentication service | Status, latency, expected JSON field | Login and account access |
| Webhook receiver | Accepted status and expected text | Orders, notifications, or external integrations |
| Checkout dependency | Status, response time, required header | Purchase completion |
| Import service | Accepted status and job identifier | CSV or JSON processing |
| Public partner integration | Status, version header, required payload value | Downstream product behavior |
Avoid creating a check merely because an endpoint exists. Monitor it when the response has a clear business consequence and the request can be repeated safely.
Make the request safe to repeat
GET and HEAD checks are usually easier to repeat. Requests using POST, PUT, PATCH, or DELETE need more care because they may create, update, or remove data.
Before scheduling an API Test Case, confirm that:
- the request uses test data rather than uncontrolled customer data;
- repeated execution won’t create duplicate production records;
- the request won’t charge a payment method or send unwanted communication;
- stored credentials have only the access the endpoint requires;
- the timeout reflects application tolerance rather than an arbitrary round number;
- each expectation maps to behavior someone owns.
A check without an owner becomes noise. Decide who reviews Failed and Needs Attention Runs before enabling the Schedule.
Start with one endpoint and one meaningful contract
Don’t monitor every route on day one. Choose the endpoint whose incorrect response would be expensive or difficult to diagnose from the customer-facing symptom.
- Create one API Test Case.
- Add the smallest set of Response Expectations that defines a usable result.
- Run it on demand and inspect the Evidence.
- Correct the request or expectations if the result is ambiguous.
- Add a Daily or Weekly Schedule.
- Assign an owner for non-passing Outcomes.
Review the current AlwaysQA Plans and Run allowances before deciding how many endpoints to schedule.
A green status code isn’t enough. Create your first API Test Case.
Frequently asked questions
What is API availability monitoring?
API availability monitoring repeatedly checks whether an endpoint is reachable and behaving as expected. A useful check can validate status, response time, headers, JSON values, or body text rather than treating any response as success.
Can AlwaysQA monitor authenticated endpoints?
Yes. An API Test Case can use a stored Bearer token, header key, or HTTP Basic credential. The credential is used for the request but isn’t included in the focused Run Evidence.
Which HTTP methods does AlwaysQA support?
AlwaysQA supports GET, HEAD, POST, PUT, PATCH, and DELETE requests to publicly reachable HTTPS endpoints.
Does AlwaysQA retry a failed API request?
No. Each API Run makes one deterministic request. This preserves the first observed result instead of hiding it behind an automatic retry.
What makes an API Run Failed instead of Needs Attention?
A Run is Failed when the response can be evaluated safely and at least one saved expectation doesn’t match. It receives Needs Attention when the endpoint can’t be reached or the response can’t be evaluated with enough confidence to call the expected behavior broken.
How often can AlwaysQA check an endpoint?
An API Test Case can run on demand or on a Daily or Weekly Schedule. AlwaysQA isn’t positioned as minute-level, multi-region outage paging; use dedicated uptime monitoring alongside it when you need that coverage.
Does AlwaysQA store complete API requests and responses?
No. Run Evidence retains focused details such as response status, response time, expectation results, safe correlation identifiers, and relevant parsing information. It doesn’t retain complete requests, responses, authorization headers, cookies, or credentials.