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Catch contract changes
Compare API definitions and surface the changes that can affect your integrations.
API change intelligence
Ship integrations.
Not surprises.
Patch is Dependabot for APIs—a CLI-first way to catch breaking changes, understand their impact, and know exactly what to fix before production finds out.
Built in public with engineers who live in the terminal.
~/acme-api
❯ patch check
Comparing openapi.yaml against production…
✓ 18 endpoints unchanged
! 1 breaking change found
− GET /v1/customers → full_name
+ GET /v1/customers → name
Impact: 3 client references
Review requiredexit 1
Contract monitoredLast checked just now
Small fixes. Big progress.CLI-first workflowActionable diffsDeveloper-led roadmap
A tighter feedback loop
From API drift to
the next clear action.
Patch turns a changed contract into the context your team needs—without making engineers hunt through documentation or wait for an incident.
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See the real impact
Translate noisy schema diffs into readable risks, affected paths, and useful context.
✓
Fix with confidence
Bring the next action into the terminal so your team can resolve issues while context is fresh.
EARLY PRODUCT VALIDATION
Help build the API tool you’d actually use.
Tell us how you handle breaking changes today, whether a CLI fits your workflow, and what would make Patch worth paying for.
Direct feedback will guide the first release.