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PyPI Changelog Between Versions
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PyPI 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).
Returns full release notes, breaking changes, and dependency changes for every version of a Python package between two specified versions, newest first.
Price / call$0.01
Success—
StatusUnknown
How this service works
PyPI changelog between two versions of a Python package: the full release notes of every version in the range (newest first, up to 100) from the project's changelog file and GitHub releases, with publish dates, bump type, yanked flags, extracted breaking changes and Requires-Python / dependency changes. One call instead of reading a long HISTORY or CHANGES file before a Python package upgrade.
Output
A JSON object containing: list of releases in the version range (newest first, up to 100), each with version, publish date, bump type (major/minor/patch), markdown release notes (up to 6,000 chars), breaking changes array, source URL, yanked flag, and truncated flag. Also includes a top-level summary string, ecosystem identifier, manifest changes (added/changed/removed dependencies and Requires-Python delta), total versionsInRange count, and a degraded flag if GitHub was accessed without an API token.
Example use cases
Pre-upgrade review for Django LTS jump
“I'm upgrading Django from 3.2 to 4.2 — can you pull the full changelog for every version in between, highlight the breaking changes, and tell me if any dependency requirements changed?”
Checking NumPy 2.0 breaking changes
“We're planning to upgrade numpy from 1.24 to 2.0 in our data pipeline. What are the documented breaking changes across all intermediate releases, and did the Python version requirement change?”
Auditing a FastAPI patch upgrade
“Can you fetch the release notes for fastapi between version 0.100.0 and 0.110.0, and flag anything that was yanked or marked as a major bump?”
Technical details
Endpoint
GEThttps://upgrade-brief.shopttyass-85f.workers.dev/pypi/changelog?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need the full release notes and structured breaking-change data for a Python package version range before performing or recommending an upgrade. It saves the agent from fetching and parsing long CHANGES/HISTORY files manually. Prefer it over the PyPI Breaking Changes endpoint when you want complete release notes in addition to just breaking changes, or when you need publish dates, bump types, yanked flags, and dependency diffs across multiple versions in one call.
Side effects
- Package not found on PyPI — returns error with package name
- Invalid version format — returns 400 with message about PEP 440 compliance
- 'from' version newer than 'to' version — returns empty releases array
- No changelog found — releases returned with null notes fields
- GitHub rate limiting without token — degraded:true flag set, fewer release notes available
- Network timeout fetching upstream changelog — partial results or error response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "3.0.0",
"from": "2.3.3",
"package": "flask",
"summary": "flask 2.3.3 -> 3.0.0: 1 versions; returning 1 newest first, 1 with release notes.",
"releases": [
{
"bump": "major",
"notes": "Released 2023-09-30\n\n- Remove previously deprecated code. ...",
"source": "changelog (repository)",
"version": "3.0.0",
"breaking": [
"Remove previously deprecated code."
],
"sourceUrl": "https://github.com/pallets/flask/blob/HEAD/CHANGES.rst",
"truncated": false,
"deprecated": null,
"publishedAt": "2023-09-30T00:00:00Z"
}
],
"ecosystem": "pypi",
"manifestChanges": {
"flags": [
"Dependency range changed: werkzeug >=2.3.7 -> >=3.0.0"
],
"dependencies": {
"added": {},
"changed": {
"werkzeug": {
"to": ">=3.0.0",
"from": ">=2.3.7"
}
},
"removed": []
},
"requiresPython": {
"to": ">=3.8",
"from": ">=3.8"
}
},
"versionsInRange": 1
}
}Tags
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