Developer Tools

Specverge: API Contract

Diff APIs Before Release

iOSfor iPhone and iPad

  • $0.99 one-time purchase
  • No account
  • No ads or app telemetry

View on the App Store

About Specverge: API Contract

Specverge is a private API contract review workbench for backend, mobile, platform, QA, and integration teams that need a dependable compatibility gate without a hosted service.

Compare two recorded contract states with consumer impact, confidence, and accountable release evidence.

KEY FEATURES
- Side-by-side current and proposed contract lanes
- Breaking-change risk scoring
- Consumer-count and coverage weighting
- Endpoint, field, enum, and security records
- Editable owner and disposition state
- CSV workspace import
- Priority compatibility findings
- Decision and deprecation log
- Local PDF and JSON export
- 110 original offline technical plates
- No account, ads, analytics, tracking, IAP, or subscription

Specverge analyzes recorded contract revisions and assumptions; it does not prove runtime compatibility. Validate generated clients, undocumented consumers, authentication, examples, replay fixtures, rollout order, and production behavior with accountable service owners.

A Shadowfetch app. Published on the App Store by Robert Corbin.