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Your API changed.Here is the patch.

Compare API versions, identify breaking changes, find affected code, and create review-ready migration patches before integrations fail.

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payments-api / contract comparisonANALYSIS COMPLETE
OPENAPI CHANGESETv1.0 / v2.0

POST /payments

01
amount

integer string(decimal)

BREAKING
02
customer_id

optional required

BREAKING
03
authentication

X-API-Key bearer token

BREAKING
Deterministic comparisonTypeScript, JavaScript, PythonJava, C#, GoDraft pull requests

01 / Workflow

From changed contract
to reviewed patch.

PatchPilot connects the API change to the code it affects, while keeping every important decision visible to the team.

01JSON and YAML

Compare

Parse and normalize OpenAPI 3.0 or 3.1 contracts, then classify every change with a deterministic engine.

02Six languages

Find

Map contract changes to the call sites, models, and integration code that will actually need attention.

03Review first

Patch

Generate a focused unified diff with evidence, validation notes, and the original context kept intact.

04Continuous

Monitor

Watch approved API baselines and start the same workflow when a new contract version appears.

02 / Safety by design

Clear lines of responsibility

Determinism finds the change.AI explains the impact.

The comparison engine is the source of truth. AI works only from structured changes and relevant, redacted snippets to explain risk and propose a patch.

PATCH CONTROLHUMAN IN THE LOOP
01

Contract changes classified

DETERMINISTIC
02

Affected code matched with evidence

TRACEABLE
03

Unified diff generated

REVIEWABLE
04

Draft pull request opened

APPROVAL REQUIRED
Patches are never merged automatically.

03 / Built for the handoff

One change.
Every team aligned.

Useful when you consume an API, publish one, or maintain the systems that keep both sides moving.

CONSUMER TEAMS

Know what will break before it does.

Move from a changed spec to the exact call sites and models that need work.

API PROVIDERS

Ship clearer migration paths.

Give integrators precise impact context instead of another long changelog.

PLATFORM ENGINEERING

Standardize API change response.

Apply one traceable, approval-based workflow across services and repositories.

Built for real engineering environments

Useful automation.
Sensible boundaries.

Least-privilege GitHub AppImmutable specification historyScoped access and audit trailsRedacted AI contextSelf-hosted deployment supportSlack, email, and webhook alerts

Early access

Make the next API
change uneventful.

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