API Monitoring

Detect Breaking Changes in
Third-Party APIs

Continuously monitors API responses for schema changes, new required fields, and deprecated endpoints — then alerts you before they break your app.

Start Monitoring — $19/mo

No credit card required to start. Cancel anytime.

Schema Diffing
Detects field additions, removals, and type changes automatically
Instant Alerts
Email and webhook notifications the moment a change is detected
Historical Log
Full audit trail of every API change over time

Simple Pricing

Pro
$19/mo

Everything you need to stay ahead of API changes.

  • ✓Up to 50 monitored endpoints
  • ✓1-minute polling intervals
  • ✓Email + webhook alerts
  • ✓Schema diff history (90 days)
  • ✓Slack & PagerDuty integrations
  • ✓Priority support
Get Started

FAQ

How does it detect breaking changes?
We store a baseline JSON schema of each API response. On every poll, we diff the new response against the baseline — flagging removed fields, type changes, and new required fields.
Which APIs can I monitor?
Any HTTP/HTTPS REST API that returns JSON. Just provide the endpoint URL, optional auth headers, and polling interval.
What happens when a change is detected?
You receive an instant alert via email and/or webhook with a detailed diff showing exactly what changed, so you can act before your app breaks.