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Assertible
What it is
Assertible tests and monitors APIs, websites and other HTTP services for uptime, availability and correct behavior. Users can define HTTP assertions to validate service behavior, then inspect request details and results. The product can run smoke tests automatically after deployments to staging or production. API tests can be imported and synchronized with OpenAPI or 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, with shorter intervals reserved for paid plans. Plans limit services, tests per service, retained results, team members and schedule frequency rather than monthly request totals. The Personal plan is free and can be used indefinitely; each paid plan includes a one-month trial. Paid plans start at $25 a month. Assertible names QA professionals, developers and people who run web services as its audience. The company says it may store personal information and files on third-party servers such as Amazon Web Services, and does not share personal information with advertisers.
For and against
For
- Free tier can be used indefinitely
- Runs post-deployment smoke tests automatically
- Imports tests from OpenAPI, Swagger and Postman
- Integrates with GitHub, Slack, PagerDuty and Zapier
Against
- Free plan limits services, tests, results and members
- Shorter monitoring intervals require a paid plan
- Paid plans start at $25 a month
The verdict
Assertible brings HTTP checks, deployment smoke tests and scheduled monitoring together, with integrations for development and alerting tools. The free tier has defined limits, while paid plans add capacity and shorter monitoring schedules.
Who it suits
Assertible is aimed at QA professionals, developers and others responsible for operating a web service.
Plans and prices
Personal
2 web services · 10 tests per service · 1,000 results · 1–2 members
Read 9 Oct 2026 · assertible.com
Standard
25 web services · 500 tests per service · 5,000 results · 1 member
Read 9 Oct 2026 · assertible.com
Startup
25 web services · 500 tests per service · 5,000 results · 10 members
Read 9 Oct 2026 · assertible.com
Business
50 web services · 1,000 tests per service · 10,000 results · 20 members
Read 9 Oct 2026 · assertible.com
On the record
- Assertions
- Users can create HTTP assertions to validate service behavior and inspect request details and assertion results.assertible.com · read 9 Oct 2026
- Company
- Assertible says it was founded in 2015 and identifies Christopher Reichert as CEO and Cody Reichert as CTO and co-founder.assertible.com · read 9 Oct 2026
- Deployment testing
- Assertible can automatically run post-deployment smoke tests on staging or production environments.assertible.com · read 9 Oct 2026
- Integrations
- The documentation lists GitHub deployments and status checks, Slack, PagerDuty, and Zapier as supported integrations.assertible.com · read 9 Oct 2026
- Monitoring schedules
- The documentation lists monitoring intervals from once per minute to once per day, with the shorter intervals available on paid plans.assertible.com · read 9 Oct 2026
- Plan limits
- The plans page limits services, tests per service, retained results, team members, and schedule frequency, rather than monthly request counts.assertible.com · read 9 Oct 2026
- Privacy
- Assertible says it may store personal information and files on third-party servers such as Amazon Web Services and does not share personal information with advertisers.assertible.com · read 9 Oct 2026
- Product
- Assertible tests and monitors APIs, websites, and other HTTP services for uptime, availability, and correctness.assertible.com · read 9 Oct 2026
- Specifications
- The product can import and sync API tests with OpenAPI and Swagger specifications and Postman collections.assertible.com · read 9 Oct 2026
- Support
- The company provides a contact form and directs account users to dashboard profile settings for account changes.assertible.com · read 9 Oct 2026
- Trial
- The plans page offers a one-month free trial for each paid plan and says the free tier can be used forever.assertible.com · read 9 Oct 2026
- Who it is for
- Assertible describes its audience as QA professionals, developers, and anyone who runs a web service.assertible.com · read 9 Oct 2026
