Apiome Diff
Evolve your schemas with confidence, not guesswork.
Apiome Diff turns schema evolution into a controlled, observable process. Compare any two schema versions side by side with property-level highlighting, detect breaking changes automatically, and quantify consumer impact before you publish — with compatibility scoring, publish gates, generated migration guides, executable scripts, and rollback plans.

What ships with Diff
Every Diff surface is wired into the rest of the Apiome platform — no glue code, no separate identity, no bolt-on integrations.
Visual side-by-side diff
Compare any two schema versions with property-level highlighting, synchronized scrolling, three view modes, and shareable permalinks.
Breaking change detection
A comprehensive classifier evaluates every change — type changes, required fields, enum narrowing — and assigns severity, with custom rules per organization.
Consumer impact analysis
Cross-reference breaking changes with API request logs and SDK versions to see exactly which consumers are affected and how much traffic is at risk.
Compatibility scoring & publish gates
Every transition gets a 0–100 backward compatibility score. Pre-publish gates warn or block when breaking changes exceed your threshold.
Migration guides, scripts & rollback plans
Generate step-by-step migration guides with before/after code, executable transformation scripts with dry-run mode, and rollback plans.
Version archaeology & cross-project comparison
An interactive evolution timeline, change attribution with linked issues, similarity discovery, and a merge assistant for consolidating duplicate schemas.
A look inside Apiome Diff
Live design previews from the Diff mockup pack — 16 surfaces in total.

Compatibility scoring breaks a transition down into weighted sub-scores with a historical trend against your publish-gate threshold.

The migration tracker coordinates adoption across every consumer team — progress, days to sunset, and per-team status with at-risk teams flagged.

The evolution timeline reconstructs a schema's entire lifetime — change velocity, per-version summaries with authors, and one-click diffs between any two versions.
Use cases
Diff is designed around the way real teams actually work — not the way a tool wants them to work.
Run the diff before a major version bump, review classified breaking changes and the compatibility score, and let the publish gate enforce your threshold.
Get a generated migration guide with before/after snippets and executable scripts, then report status through the migration tracker.
Find duplicated schemas across the organization with similarity discovery, merge them with AI-assisted conflict resolution, and monitor evolution patterns.
- Custom breaking-change rules per organization to encode domain-specific compatibility semantics
- Organization-level publish gate policies with warn and block modes tied to compatibility thresholds
- Cross-project schema comparison with project-level access controls enforced
- Consumer impact reports exportable as CSV for distribution to downstream teams
- Permanent diff permalinks with frozen version references, retained indefinitely for audit
- Context-aware mitigation suggestions with implementation steps and impact reduction estimates
- Effort estimation in person-hours with confidence ranges, calibrated by historical migrations
- Merge conflict resolution recommendations with reasoning drawn from property semantics
- Novel evolution pattern detection beyond pre-defined categories, correlated with org trends
AI that plans the migration, not just the diff
Diff's AI goes beyond detecting what changed — it reasons about how to ship the change safely, drafting mitigation strategies grounded in your schema context and consumer patterns.
Every DiffAI feature is grounded in your tenant's data, runs under your data-residency policy, and respects every role and ACL the platform enforces.
Every surface in Apiome Diff
A look at the 16 screens designed for this suite — covering everything from day-1 onboarding to day-100 operations.


