Assertible

What Assertible is

Assertible tests and monitors APIs, websites, and other HTTP services for uptime, availability, and correct behavior. Users create HTTP assertions to validate how a service behaves, then inspect request details and assertion results. After a deployment, Assertible can run smoke tests automatically against staging or production environments. It can import and sync API tests with OpenAPI and Swagger specifications and Postman collections. Listed integrations include GitHub deployments and status checks, Slack, PagerDuty, and Zapier. Monitoring schedules range from once per minute to once per day; the shorter intervals are available on paid plans. Plan limits cover the number of services, tests per service, retained results, team members, and schedule frequency rather than monthly request counts. The free Personal plan includes two web services, 10 tests per service, 1,000 results, one to two members, and Standard monitoring with two monitors. Assertible says the free tier can be used indefinitely. Paid plans start at $25 a month, and each paid plan includes a one-month free trial. Assertible describes its audience as QA professionals, developers, and people who run web services. It is available on the web and through an API.

Who it suits

Assertible suits QA professionals and developers who need to check API or website behavior and monitor HTTP services. It can also fit teams that want automated post-deployment smoke tests and integrations with tools such as GitHub, Slack, or PagerDuty.

Limits

The cheapest plan, Personal, is free and includes two web services, 10 tests per service, 1,000 retained results, and one to two members. It uses Standard monitoring with two monitors; shorter monitoring intervals are available on paid plans.

Getting started

1. Open the Assertible website or use its API.
2. Start with the free Personal plan, or select a paid plan with a one-month free trial.
3. Create HTTP assertions for the service you want to validate.
4. Import or sync tests from an OpenAPI or Swagger specification or a Postman collection.
5. Connect a listed integration such as GitHub, Slack, PagerDuty, or Zapier if needed.
6. Choose a monitoring schedule; shorter intervals are available on paid plans.

Verdict

Choose Assertible if you need HTTP service checks, deployment smoke tests, or API test synchronization with common specification formats and Postman collections. Look elsewhere if the Personal plan's service, test, result, or team limits do not fit; paid plans start at $25 a month.