Assert vs Assertible#

Assertible pairs API testing with monitoring and triggers from your CI/CD pipeline. Assert handles the production side, running continuous checks between deploys.

Overview#

When to Choose Assert#

Choose Assert if you need:

• Simple setup: monitors running in minutes
• Production focus: continuous health checks
• GraphQL support: native query and mutation monitoring
• Lower cost: 30 monitors for $23/mo
• Multi-region: 6 regions on every plan

Assert runs ongoing production monitoring. Set up a monitor, pick an interval down to 30 seconds, and it keeps running until you turn it off.

When to Choose Assertible#

Choose Assertible if you need:

• CI/CD integration: trigger tests on every deploy
• Test suites: organize tests into logical groups
• Data capture: extract values for use in other tests
• Post-deploy testing: verify deployments immediately
• GitHub integration: test status in pull requests

Assertible is built for post-deployment testing and CI/CD workflows, verifying your API after every code change.

Feature Comparison#

Assertion Capabilities#

Both tools validate response bodies:

Assert:

• ✅ JSONPath assertions ($.data.id == 123)
• ✅ Header validation
• ✅ Response time thresholds
• ✅ Status code checks
• ✅ JSON type validation
• ✅ Point-and-click builder

Assertible:

• ✅ JSONPath assertions
• ✅ JSON Schema validation
• ✅ Response body assertions
• ✅ Header checks
• ✅ Regex matching
• ✅ Data capture & chaining

Monitoring vs Testing#

Assert:

• Continuous monitoring (30s - 60min intervals)
• Production-focused
• Alert when issues occur
• Multi-region probing

Assertible:

• Scheduled checks (15min minimum)
• CI/CD trigger-based testing
• Post-deploy verification
• Deployment-focused workflow

CI/CD Integration#

Assert:

• Trigger via webhook on deploy
• Monitoring runs continuously regardless
• Alerts on failures anytime

Assertible:

• First-class CI/CD integration
• Trigger tests from GitHub Actions, CircleCI, etc.
• Block deploys if tests fail
• GitHub commit status updates

Pricing#

Assert:

Assertible:

Use Case Comparison#

Continuous Production Monitoring#

Goal: Know immediately when production APIs fail

Assert: ✅ Built for this

• Set up monitors in minutes
• Checks every 30 seconds if needed
• Instant Slack/PagerDuty alerts

Assertible: ⚠️ Can do this

• Minimum 15-minute intervals
• More focused on post-deploy
• Works but not optimized for continuous monitoring

Post-Deploy Verification#

Goal: Verify APIs work after every deployment

Assertible: ✅ Built for this

• Trigger tests from CI/CD pipeline
• Update GitHub commit status
• Block deploy if tests fail

Assert: ⚠️ Can do this

• Webhook trigger available
• But no native CI/CD integration
• Won't block deployments

API Contract Testing#

Goal: Ensure API responses match expected schema

Assert:

• JSONPath assertions
• Type checking
• Value matching

Assertible:

• Full JSON Schema validation
• More comprehensive schema support
• Regex pattern matching

Real-World Scenarios#

Scenario: E-commerce Platform#

Using Assert:

• Monitor product API every minute
• Alert if $.in_stock changes unexpectedly
• Check from 3 regions simultaneously
• Get Slack alert within seconds of failure

Using Assertible:

• Test product API after each deploy
• Validate full response schema
• Run test suite from CI/CD
• Block release if validation fails

Scenario: SaaS API#

Using Assert:

• Monitor all public endpoints continuously
• Track response times over time
• Multi-region latency awareness
• Immediate PagerDuty escalation

Using Assertible:

• Comprehensive test suite per endpoint
• Post-deploy smoke testing
• Capture auth tokens for chained tests
• GitHub status integration

When to Use Both#

You can run both:

1. Assertible in CI/CD pipeline

   • Run comprehensive tests after each deploy
   • Validate API contracts
   • Block bad releases

2. Assert for production

   • Continuous monitoring between deploys
   • Fast detection of runtime issues
   • Multi-region health checks

Assertible covers deploy time; Assert covers the gap between deploys.

Deploy-time or runtime#

Assertible fits teams with a mature CI/CD pipeline that want contract validation on every deployment. It hooks into GitHub Actions, CircleCI, and commit statuses directly.

Assert covers continuous production monitoring: 30-second intervals, 6 regions, and Slack or PagerDuty alerts when a check fails. Paid plans start at $8/mo.

Try Assert free — no credit card required.