# License Intel – SPDX License Exception Lookup

> License Intel – SPDX License Exception Lookup 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).

Look up a single SPDX license exception by its ID, returning its canonical name, reference links, and deprecated status.

## Facts

- Endpoint: GET https://license-intel.x402tookit.com/license-exception?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/license-intel-spdx-license-exception-lookup-ef8ed2a0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xwrLGD8JnMGzmdxmKjdzx

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability license-intel-spdx-license-exception-lookup-ef8ed2a0
```

Example prompt: Can you look up the SPDX license exception Classpath-exception-2.0 and tell me its full name, whether it's deprecated, and any reference links?

## When to prefer this

Use this endpoint when you need precise metadata for a single, known SPDX license exception ID — particularly to verify its deprecated status, canonical name, or official reference links. Prefer this over the license ID lookup endpoint when the identifier is specifically a license exception (e.g. used with the SPDX WITH operator) rather than a standalone license.

## Known failure modes

- Unknown exception ID returns null or empty fields with a degraded flag set
- Malformed or non-SPDX exception ID may return no match
- SPDX list version mismatch or stale data indicated by degraded or notChecked fields
- Network or upstream SPDX source unavailability may result in a degraded response

## How this service works

Look up an SPDX license exception id such as Classpath-exception-2.0: its name, links and deprecated status.

## Output

Returns a structured object containing the exception's canonical name, SPDX exception ID, reference URL, seeAlso links, deprecated flag, source URL, list version, and an asOf timestamp indicating data freshness.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "id"
     ],
     "properties": {
      "id": {
       "type": "string",
       "description": "SPDX exception id, for example Classpath-exception-2.0"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "name": {
       "type": [
        "null",
        "string"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "seeAlso": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "reference": {
       "type": [
        "null",
        "string"
       ]
      },
      "sourceUrl": {
       "type": [
        "null",
        "string"
       ]
      },
      "deprecated": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "disclaimer": {
       "type": [
        "null",
        "string"
       ]
      },
      "notChecked": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "attribution": {
       "type": [
        "null",
        "string"
       ]
      },
      "exceptionId": {
       "type": [
        "null",
        "string"
       ]
      },
      "listVersion": {
       "type": [
        "null",
        "string"
       ]
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/license-intel-spdx-license-exception-lookup-ef8ed2a0/health.json
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