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npm Changelog Between Versions
x402
npm Changelog Between Versions is a paid API for AI agents from upgrade-brief.shopttyass-85f.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-28).
Fetches full release notes for every npm package version in a given range (newest first), including breaking changes, bump types, deprecations, and manifest changes.
Price / call$0.01
Success—
StatusUnknown
How this service works
npm changelog between two versions: the full release notes of every version in the range (newest first, up to 100), from the package CHANGELOG and GitHub releases, with publish dates, bump type (major, minor, patch), npm deprecations, extracted breaking changes and package.json manifest changes. Covers a whole package upgrade or dependency upgrade in one call instead of reading dozens of release pages.
Output
A JSON object containing an array of releases (newest first), each with version number, publish date, bump type (major/minor/patch), markdown release notes (up to 6000 chars), source URL, extracted breaking changes array, deprecation status, and whether notes were truncated. Also includes a summary string, list of migration guides, manifest changes, repository URL, and a degraded flag if GitHub rate limits reduced coverage.
Example use cases
Auditing a major library upgrade
“I'm upgrading react from 17.0.2 to 18.2.0 — can you pull the full changelog for every version in that range so I can see what changed, what's breaking, and what the bump types were?”
Checking for deprecated package versions
“Before I upgrade lodash from 4.0.0 to 4.17.21, can you fetch all the release notes in that range and flag any versions marked as deprecated on npm?”
Reviewing TypeScript minor releases
“Show me the changelog for typescript between 5.0 and 5.4, newest first, so I can review the release notes and any breaking changes before we update our project.”
Technical details
Endpoint
GEThttps://upgrade-brief.shopttyass-85f.workers.dev/changelog?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need the full narrative release notes for a range of npm package versions in a single call — especially for major upgrades where you want structured breaking changes, bump types, deprecation flags, and manifest diffs without manually visiting dozens of GitHub release pages. Prefer it over scraping GitHub releases directly or reading CHANGELOG files manually. Use the sibling breaking-changes endpoint if you only need a concise breaking-changes summary rather than full release notes.
Side effects
- Package not found on npm registry returns an error
- Invalid version range (from >= to) may return empty releases array
- GitHub rate limiting without API token sets degraded:true and reduces available release notes
- Packages without a CHANGELOG or GitHub releases return releases with null notes
- Very large version ranges truncated to maxVersions (default 30, max 100)
- Prerelease versions excluded by default unless prereleases=true
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": "4.1.2",
"notes": [],
"latest": "5.6.2",
"package": "chalk",
"sources": [
"https://github.com/chalk/chalk/releases"
],
"summary": "chalk 4.1.2 -> 5.0.0: 1 versions; returning 1 newest first, 1 with release notes.",
"degraded": false,
"releases": [
{
"bump": "major",
"notes": "### Breaking\n- This package is now pure ESM...",
"source": "github-release",
"version": "5.0.0",
"breaking": [
"This package is now pure ESM. Please read this."
],
"sourceUrl": "https://github.com/chalk/chalk/releases/tag/v5.0.0",
"truncated": false,
"deprecated": null,
"publishedAt": "2021-11-26T09:04:55Z"
}
],
"repository": "https://github.com/chalk/chalk",
"attribution": "Compiled from public sources (npm registry, deps.dev, jsDelivr, GitHub).",
"toPublishedAt": "2021-11-26T09:04:55Z",
"fromPublishedAt": "2021-07-30T12:26:14Z",
"manifestChanges": null,
"migrationGuides": [],
"versionsInRange": 1,
"includesPrereleases": false
}
}Tags
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Reviews
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