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semver-compare
x402
semver-compare is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Compare two semantic versions, check if a version satisfies a range, or sort a list of versions with prerelease handling
Price / call$0.01
Success—
StatusUnknown
How this service works
Semantic-version helper: compare two versions (-1/0/1 with which is newer), test whether a version satisfies a range (^, ~, >=, <, x-ranges, hyphen ranges, ||), or sort a comma/space list of versions descending with prerelease handling. Parses major/minor/patch/prerelease/build. $0.01 per operation.
Output
Returns a comparison integer (-1, 0, or 1) for two-version comparisons indicating which is newer; a boolean for range satisfaction checks; or an ordered list of version strings sorted descending for sort operations. Also exposes parsed components: major, minor, patch, prerelease, and build metadata.
Example use cases
Dependency range compatibility check
“Check if version 3.14.1 satisfies the semver range ^3.12.0 so I know if I can use it without a major upgrade.”
Sorting release candidates descending
“Sort these versions from newest to oldest: 1.0.0, 1.0.0-rc.2, 1.0.0-rc.1, 0.9.8, 1.0.1, 1.1.0-alpha.”
Comparing two package versions
“I have versions 4.5.0 and 4.4.9 — which one is newer? Return -1, 0, or 1.”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/dev/semverWhen to prefer
Use this endpoint when you need a lightweight, pay-per-call semver utility without bundling a full semver library. Ideal for agents that occasionally need to compare, validate, or sort version strings in automation pipelines, CI checks, or dependency audits. Prefer over a local library when running in a serverless or constrained environment.
Side effects
- Invalid semver string causes parse error or unexpected result
- Unsupported range syntax not covered by the API
- Missing required query parameters returns an error
- Non-semver version strings (e.g. CalVer, date-based) may fail to parse correctly
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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