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npm Breaking Changes & Migration
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npm Breaking Changes & Migration is a paid API for AI agents from upgrade-brief.shopttyass-85f.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-28).
Returns documented breaking changes, manifest diffs, and migration guides for an npm package upgrade between two versions
Price / call$0.005
Success—
StatusUnknown
How this service works
npm breaking changes between two versions of a package, before a package upgrade: the documented breaking changes per version, read from the real CHANGELOG, GitHub release notes and alpha/beta/rc notes, plus major version bumps, Node.js engine, ESM/CJS, exports and peer dependency changes, migration guide links and a verdict. Exact versions or a major ('4'); a source URL for every item. One call per dependency upgrade.
Output
A JSON object containing: a verdict enum (BREAKING_CHANGES_LIKELY, REVIEW_MANIFEST_CHANGES, NO_BREAKING_CHANGES_DOCUMENTED, UNKNOWN_INCOMPLETE_NOTES), a human-readable summary, an array of breaking change items per version (each with source URL, bump type, and publish date), manifest changes (engines, module type, added/removed dependencies, peer dependency changes), major version bumps, migration guide URLs, version coverage stats, and the latest stable version.
Example use cases
Safe upgrade check before deployment
“I'm about to upgrade next from version 13 to 14 in production — can you pull all the documented breaking changes, manifest diffs, and any migration guides so I can assess the risk?”
Major version jump risk assessment
“We're considering upgrading react from 17 to 18 — what are all the breaking changes between those two versions, and does the verdict suggest it's a high-risk change?”
Automated dependency upgrade pipeline
“For our CI pipeline, check what breaks when upgrading axios from 1.4.0 to the latest stable release, including any Node.js engine or ESM/CJS module type changes.”
Technical details
Endpoint
GEThttps://upgrade-brief.shopttyass-85f.workers.dev/breaking?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a structured, per-version breakdown of breaking changes with source attribution for a specific npm package upgrade. It is superior to manual changelog reading because it aggregates npm registry, deps.dev, jsDelivr, and GitHub sources in one call, and returns a machine-readable verdict. Prefer it over the batch 'Dependency Upgrade Plan' endpoint when you need full detail for a single dependency rather than a high-level plan across multiple packages.
Side effects
- Package not found on npm registry — returns error or empty result
- Version range invalid or from > to — returns error
- No changelog or release notes available — verdict set to UNKNOWN_INCOMPLETE_NOTES with partial coverage
- Rate limiting or upstream source unavailability causes degraded mode with incomplete notes
- Prerelease versions excluded by default unless prereleases=true is set
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "5.0.0",
"asOf": "2026-10-22T12:00:00.000Z",
"from": "4.21.0",
"notes": [],
"latest": "5.3.0",
"package": "express",
"sources": [
"https://deps.dev (versions, dates)",
"https://registry.npmjs.org/express (manifests)",
"https://cdn.jsdelivr.net/npm/express@5.0.0/History.md"
],
"summary": "express 4.21.0 -> 5.0.0: 7 versions, 1 major bump(s) (5.0.0), 7 documented breaking item(s) in 2 version(s); release notes found for 6/7 versions. Manifest: Node.js engine requirement changed: >= 0.10.0 -> >= 18.",
"verdict": "BREAKING_CHANGES_LIKELY",
"breaking": [
{
"bump": "major",
"items": [
"`res.status()` accepts only integers, and input must be greater than 99 and less than 1000",
"`res.redirect('back')` and `res.location('back')` is no longer a supported magic string, explicitly use `req.get('Referrer') || '/'`."
],
"source": "https://cdn.jsdelivr.net/npm/express@5.0.0/History.md",
"version": "5.0.0",
"publishedAt": "2024-09-10T03:37:48Z"
}
],
"coverage": {
"versionsWithNotes": 6,
"versionsWithoutNotes": [
"4.22.1"
]
},
"degraded": false,
"majorBumps": [
"5.0.0"
],
"repository": "https://github.com/expressjs/express",
"attribution": "Compiled from public sources (npm registry, deps.dev, jsDelivr, GitHub).",
"toPublishedAt": "2024-09-10T03:37:48Z",
"fromPublishedAt": "2024-09-11T19:49:43Z",
"manifestChanges": {
"flags": [
"Node.js engine requirement changed: >= 0.10.0 -> >= 18"
],
"engines": {
"node": {
"to": ">= 18",
"from": ">= 0.10.0"
}
},
"moduleType": {
"to": "commonjs",
"from": "commonjs"
},
"dependencies": {
"added": [
"router",
"once"
],
"removed": [
"array-flatten"
],
"changedCount": 18
},
"peerDependencies": {
"added": {},
"changed": {},
"removed": {}
}
},
"migrationGuides": [
"https://expressjs.com/en/guide/migrating-5.html"
],
"versionsInRange": 7,
"includesPrereleases": false
}
}Tags
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