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Clink Forge SPDX License Lookup
x402
Clink Forge SPDX License Lookup is a paid API for AI agents from api.clinkforge.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Looks up an SPDX license record by ID and returns structured data rows with cryptographic provenance attestation, sold per-call over x402.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay per call over x402. USDC on Base, no account, no API key. 28 government-sourced data products at $0.001–$0.05 per call, every response signed and provenance-chained.
Output
Returns a JSON object containing: data rows with license payload fields, product metadata (slug, version), a provenance chain (license_id, source_url, observed_at timestamp), an Ed25519 cryptographic attestation signature, and a payment receipt with a settlement reference hash — providing a fully verifiable, machine-readable license record.
Example use cases
Verify open source license compliance
“Pull the SPDX license record for 'Apache-2.0' with full provenance and attestation so I can confirm it's an approved license for our project.”
Enrich software bill of materials
“For each dependency in our SBOM tagged with SPDX ID 'GPL-3.0-only', fetch the attested license data so we can verify what obligations apply.”
Audit license claims in contract
“I need to verify the exact terms of the 'LGPL-2.1-or-later' license — can you look it up and return the cryptographically signed record so we can attach it to our audit trail?”
Technical details
Endpoint
GEThttps://api.clinkforge.com/v1/p/spdx-license-lookupWhen to prefer
Choose this endpoint when you need machine-verifiable, cryptographically attested SPDX license data — not just a plain text description. It is ideal for automated compliance pipelines, software bill of materials (SBOM) enrichment, and audit workflows where provenance and a payment receipt serve as proof of data acquisition. Prefer it over free SPDX registry lookups when your system requires an Ed25519 signature and immutable provenance chain tied to a specific observation timestamp.
Side effects
- Missing or invalid 'id' query parameter returns a validation error
- Unknown or non-existent SPDX license ID returns empty rows or a 404-equivalent response
- Payment failure or insufficient USDC balance causes a 402 Payment Required response before data is returned
- Network or upstream data source outage may cause a 503 or timeout
- ID string exceeding 80 characters is rejected by schema validation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": [
{
"field": "value",
"_record_id": "R-100"
}
],
"product": "example-product",
"row_count": 1,
"provenance": [
{
"hash": "sha256...",
"authority": "AGENCY",
"source_url": "https://agency.gov/data",
"observed_at": "2026-08-25T00:00:00Z"
}
],
"attestation": {
"signature": "base64...",
"result_digest": "sha256...",
"signing_key_id": "forge-signing-1"
},
"payment_receipt": {
"amount_usd": 0.01,
"settlement_ref": "0xtx..."
},
"product_version": 1
},
"description": "data rows + provenance chain + attestation"
}Tags
x402
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