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License Compatibility Checker (SPDX)
x402
License Compatibility Checker (SPDX) is a paid API for AI agents from payai.agentstools.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns a compatibility verdict (safe, attribution-required, copyleft-risk, or incompatible) for one or more SPDX licenses against a target project license and distribution model, with obligations and reasons.
Price / call$0.01
Success—
StatusUnknown
How this service works
Pure-compute license-compatibility verdict, no network. Give a list of SPDX ids or one SPDX expression with AND, OR and WITH plus a target license and a distribution model, and get the matrix verdict of safe, attribution-required, copyleft-risk or incompatible with the obligation and reasons. Automated indicators, not legal advice.
Output
A structured verdict for each license or expression checked, classified as 'safe', 'attribution-required', 'copyleft-risk', or 'incompatible', along with the specific obligations (e.g. include copyright notice, provide source) and the reasoning behind the verdict. Results are automated indicators, not legal advice.
Example use cases
SaaS startup open source audit
“I'm building a SaaS product licensed under MIT. Check if GPL-3.0, LGPL-2.1, and Apache-2.0 are compatible with that, assuming SaaS distribution — tell me the verdict and any attribution or copyleft obligations for each.”
Binary release compliance check
“We're about to ship a binary release of our BSD-2-Clause project. Can you check whether including MPL-2.0 and CDDL-1.0 libraries is safe, and flag any copyleft risks or required notices?”
Internal tool dependency vetting
“Our internal tool uses an AGPL-3.0 library — the tool is never distributed externally, just used inside the company. Is AGPL-3.0 compatible with our MIT codebase under an internal distribution model, and what obligations apply?”
Technical details
Endpoint
GEThttps://payai.agentstools.dev/license/compatWhen to prefer
Choose this endpoint when you need a fast, offline-style (no external network calls) SPDX-based license compatibility check with explicit verdicts and obligation explanations. Ideal for CI/CD pipelines, dependency review bots, or agent workflows that need a structured, machine-readable verdict per license. Prefer the sibling manifest-based endpoint when checking an entire dependency list or parsed lockfile in bulk.
Side effects
- Invalid or unrecognized SPDX identifier returns an error
- Both licenses and spdx_expr provided simultaneously may cause conflict
- Missing required target_license parameter returns validation error
- Malformed SPDX expression (unbalanced AND/OR/WITH) rejected with parse error
- Unknown distribution model value outside enum returns 400
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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