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License Intel – List OSI-Approved SPDX Licenses
x402
License Intel – List OSI-Approved SPDX Licenses is a paid API for AI agents from license-intel.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-29).
Returns the current list of OSI-approved SPDX licenses, with optional filtering by FSF-libre status or license ID prefix.
Price / call$0.02
Success—
StatusUnknown
How this service works
List current OSI-approved SPDX licenses, optionally only FSF-libre ones or those starting with a prefix.
Output
A JSON object containing the list of matching licenses (each with licenseId, name, and fsfLibre flag), total count, SPDX list version, source URL, and attribution metadata. May also include a summary, disclaimer, and degraded-mode indicator if the upstream source is partially unavailable.
Example use cases
Filter GPL-family OSI licenses
“Show me all OSI-approved SPDX licenses whose IDs start with GPL and are also FSF-libre — I want to see up to 30 results.”
Browse all OSI-approved licenses
“Give me the full current list of OSI-approved SPDX licenses, up to 200, so I can see every identifier and name that's currently recognized.”
Find FSF-libre approved licenses
“Which SPDX licenses are both OSI-approved and FSF-libre right now? List them all for me.”
Technical details
Endpoint
GEThttps://license-intel.x402tookit.com/osi-approved?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a filterable, current list of OSI-approved SPDX license identifiers — especially when you want to narrow by FSF-libre status or a known license ID prefix (e.g. GPL, BSD, MIT). Prefer it over the search endpoint when you want to enumerate a category of licenses rather than find a specific one by name fragment.
Side effects
- Invalid prefix format may return an empty list rather than an error
- fsfLibre parameter must be the string 'yes'; other values may be ignored or return unexpected results
- Limit outside 1–200 range may be rejected or clamped
- Upstream SPDX data unavailable may trigger degraded mode with partial results
- Network or payment failure returns no data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
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