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License Intel – License Family Classifier
x402
License Intel – License Family Classifier 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).
Classifies up to 30 SPDX license IDs by copyleft strength family: public-domain-like, permissive, weak copyleft, strong copyleft, or network copyleft.
Price / call$0.02
Success—
StatusUnknown
How this service works
Classify up to 30 license ids by strength: public-domain-like, permissive, weak copyleft, strong copyleft or network copyleft.
Output
Returns a per-license array with each SPDX ID's matched canonical ID, family classification (e.g. permissive, strong copyleft), and numeric rank. Also includes an overall verdict, a human-readable summary, the strictest license in the set, a list of any IDs not checked, reasons supporting the verdict, a degraded flag if data quality was reduced, and source/attribution metadata.
Example use cases
Dependency license risk triage
“I have these licenses in my npm dependency tree: MIT, ISC, BSD-2-Clause, GPL-2.0, MPL-2.0, and AGPL-3.0. Can you classify each one by copyleft strength family and tell me which is the most restrictive?”
Open-source project policy check
“We only allow permissive and weak-copyleft licenses in our codebase. Can you classify Apache-2.0, LGPL-2.1, GPL-3.0, MIT, and Artistic-2.0 by their license family so I can see which ones violate our policy?”
Comparing mixed license set for a release
“Before we ship, check whether any of these licenses — EPL-2.0, CDDL-1.0, EUPL-1.2, BSD-3-Clause, and CC0-1.0 — fall into the network copyleft or strong copyleft category.”
Technical details
Endpoint
GEThttps://license-intel.x402tookit.com/license-family?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to quickly categorize and rank a batch of SPDX license IDs by copyleft strength — especially useful for dependency audits, policy enforcement, and compatibility risk assessment. Prefer this over the compare or lookup endpoints when you have multiple licenses and need a holistic verdict about the strictest constraint in the set rather than a side-by-side comparison or individual license details.
Side effects
- Invalid or unrecognized SPDX IDs returned in notChecked array rather than results
- More than 30 IDs submitted may cause partial or error response
- Missing 'ids' query parameter causes request failure
- Network or payment authorization failure (402 payment required)
- Malformed comma-separated input string may cause parse errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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