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Duo Data Utilities – Semantic Version Parser & Comparator
x402
Duo Data Utilities – Semantic Version Parser & Comparator is a paid API for AI agents from api.duoleads.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-02).
Parse a semantic version string into its components, compare two versions by precedence, test whether a version satisfies a range expression, or sort a list of versions.
Price / call$0.05
Success—
StatusUnknown
How this service works
Parse a semantic version into major, minor, patch, prerelease and build parts; compare two versions by precedence including prerelease ordering; or test whether a version satisfies a range expression using caret, tilde, hyphen, x-ranges and comparator sets. Returns the parsed structure, the comparison result and the reason a range did not match.
Output
Returns a JSON object with an 'ok' flag and a 'data' object whose shape depends on the operation: for 'parse', it includes major, minor, patch, prerelease array, build array, is_prerelease flag, valid flag, canonical form, and a reason field if invalid; for 'compare', it returns the comparison result; for 'satisfies', it returns a boolean and the reason a range did not match; for 'sort', it returns the ordered list. Also includes metadata such as request_id, computed_at timestamp, determinism flag, and price.
Example use cases
Dependency range check for CI pipeline
“Check whether version 2.4.1 satisfies the semver range ^2.3.0 — I need to know if this package version is compatible before we deploy.”
Compare two release versions
“Compare semver versions 3.0.0-beta.2 and 3.0.0-alpha.10 and tell me which one takes precedence according to semver rules.”
Sort a list of release tags
“Sort these versions in order for me: 1.0.0, 2.0.0-alpha.1, 1.10.0, 1.9.3, 2.0.0 — I want to know the correct semver ordering from lowest to highest.”
Technical details
Endpoint
GEThttps://api.duoleads.com/v1/code/semver?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need deterministic, standards-compliant semantic version operations — parsing, comparison, range satisfaction, or sorting — without setting up a local semver library. It is especially useful in agentic pipelines that need to compare dependency versions, validate release tags against a range expression, or sort version lists from external sources, all via a simple HTTP GET with no runtime dependencies.
Side effects
- Invalid or malformed version string returns valid=false with a reason field explaining the parse failure
- Missing required query parameters for the selected operation (e.g. no 'a' or 'b' for op=compare) returns an error
- Range expression syntax errors for op=satisfies return an error describing the invalid range
- More than 100 versions supplied to op=sort exceeds the limit and returns an error
- Network or payment authorization failure returns a 402 or 5xx HTTP error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"data": {
"build": [
"build",
"5"
],
"major": 1,
"minor": 2,
"patch": 3,
"valid": true,
"reason": null,
"canonical": "1.2.3-rc.1+build.5",
"prerelease": [
"rc",
1
],
"is_prerelease": true
},
"meta": {
"price_usd": "0.05",
"disclaimer": "Factual output of a deterministic computation over public data. Provided as is, with no warranty of accuracy, completeness or availability. Not investment, financial, legal, tax, medical or any other professional advice, and not a recommendation. Verify before relying on it. Terms: https://api.duoleads.com/terms",
"request_id": "01K6B7Q4ZC8H3F2M9WXR5TYN0D",
"computed_at": "2026-09-28T12:00:00.000Z",
"deterministic": true
},
"route": "/v1/code/semver",
"version": "1.0.0"
}
}Tags
x402
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