API Monitoring

Know When APIs Break
Before Your App Does

"Normally you find out by your app crashing." Not anymore. Specway detects API changes and alerts you before integrations fail.

Seconds
Alert delivery
3 types
Severity classification
0
Surprise outages
Get Alerts on API ChangesHow It Works
The Problem

APIs Change Without Warning

Vendors update endpoints. Internal teams ship new versions. You're the last to know—usually when something breaks.

"How do you get informed if a REST API changes? Normally you find out by your app crashing."

r/reactjsFrontend Developer

"We integrated Stripe. API updated 3 weeks later. We never knew until customers started reporting payment failures."

r/SaaSStartup CTO

"Silent failures compound: by the time you detect the issue, customer impact has already happened."

r/devopsPlatform Engineer
What We Detect

Three Levels of Change Severity

Not all changes are equal. We classify by impact so you know what needs immediate attention.

Breaking

Changes that will break existing integrations

  • Removed endpoints or fields
  • Changed field types (string → number)
  • New required parameters
  • Authentication method changes
  • Response structure modifications
Warning

Changes that may affect behavior

  • Deprecated fields or endpoints
  • New required headers
  • Changed validation rules
  • Rate limit modifications
  • Default value changes
Info

Safe changes with no breaking impact

  • New optional fields
  • New endpoints added
  • Documentation updates
  • New response fields
  • Extended enum values
Alert Channels

Get Alerts Where You Work

Choose how and where you want to be notified. Different severities can go to different channels.

Slack

Instant notifications in your team channels. Configure severity thresholds and channel routing.

Email

Daily digests or real-time alerts to your inbox. Perfect for async review.

Webhooks

Integrate with your existing tools. Trigger CI/CD pipelines, create tickets, or update dashboards.

Visual Diff

See Exactly What Changed

Not just "something changed"—see precisely which endpoints, fields, and schemas are different.

Side-by-Side Comparison

See old and new versions together. Additions in green, removals in red, changes highlighted.

Structured View

Not just raw diff—understand which endpoints, parameters, and schemas changed.

Impact Analysis

We highlight which changes are breaking and explain why they could cause problems.

Version History

Browse all previous versions. Compare any two points in time. Never lose track of changes.

Use Cases

Built for API-Dependent Teams

Prevent customer-facing outages

Monitor Third-Party APIs

Vendors update their APIs without warning. Know when Stripe, Salesforce, or any API you depend on makes changes—before your integration breaks.

Smooth internal migrations

Internal API Versioning

Publishing an internal API? Notify all consuming teams when you ship breaking changes. Give them migration guides, not surprise failures.

Proactive, not reactive

Migration Planning

Deprecated endpoints don't have to be emergencies. Get early warning so you can plan migrations on your timeline, not theirs.

Complete change history

Compliance Tracking

Need audit trails of API changes? Our version history shows exactly what changed, when, and whether you were notified.

How It Works

Set Up in Minutes

  1. 1

    Import Your API Spec

    Paste the URL to any OpenAPI spec—yours or a third-party vendor's. We'll start monitoring immediately.

  2. 2

    Configure Alert Rules

    Choose severity thresholds (breaking only, warnings, everything) and where to send alerts (Slack, email, webhooks).

  3. 3

    Stay Ahead of Changes

    When changes are detected, you'll know immediately. Review diffs, assess impact, and act before problems hit production.

Start Monitoring APIs
FAQ

Frequently Asked Questions

How do you detect breaking changes?
We compare your current OpenAPI spec against the previous version and analyze every difference. Changes are classified by their potential impact: removed fields are breaking, new optional fields are safe. We use OpenAPI semantics to understand what matters.
Can I monitor APIs I don't own?
Yes! Point us at any publicly accessible OpenAPI spec URL. We'll monitor it and alert you when the vendor makes changes. This is especially valuable for third-party integrations where you have no control over when updates happen.
How fast do alerts arrive?
Alerts are sent within seconds of detecting a change. We poll specs on your configured schedule (hourly, daily, or custom) and immediately notify you when something differs. For critical APIs, you can configure more frequent polling.
What if I want to ignore certain changes?
Configure severity thresholds per API. Maybe you only care about breaking changes for production APIs but want all alerts for staging. You can also mute specific endpoints or set up rules to ignore certain change patterns.
How does the diff viewer work?
Our diff viewer shows structured comparisons of your API specs. See exactly which endpoints changed, what fields were added or removed, and how request/response schemas evolved. It's designed for humans, not just raw JSON diffs.
Can I integrate alerts with my existing tools?
Yes. Beyond Slack and email, we support webhooks for custom integrations. Trigger CI/CD pipelines, create Jira tickets, update Notion pages, or post to any system that accepts HTTP requests.

Related Resources

Live API Documentation

Keep docs automatically in sync with your OpenAPI specs.

Documentation Drift

Understand the cost of outdated docs and how to prevent it.

OpenAPI Import Guide

Step-by-step tutorial to import your first API spec.

Compare Alternatives

See how we compare to ReadMe, Swagger UI, and Postman.

Ready to Know Before Things Break?

Import your API spec and start getting alerts. No more surprise outages.

Start Monitoring FreeLearn More