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Public Registry ID Shape Validator
x402
Public Registry ID Shape Validator is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Validates the structural shape of common registry identifiers (LEI, WMI, EIN-like) and returns a kind guess and validity flag without external lookups.
Price / call$0.001
Success—
StatusUnknown
How this service works
Validate shape of common registry IDs (LEI/WMI/EIN-like). Call when preflight before registry lookups. Returns kind_guess and valid_shape as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.
Output
Returns a JSON object with 'kind_guess' indicating the detected identifier type (e.g. LEI, WMI, EIN) and 'valid_shape' as a boolean indicating whether the string matches the structural pattern for that identifier type. Result is deterministic and computed locally with no external registry calls.
Example use cases
Preflight LEI before GLEIF lookup
“Before I query the GLEIF registry, can you check if '549300TRUWOKKFP1U49' has the right structure for a Legal Entity Identifier?”
Classify unknown registry ID type
“I have this identifier string '12-3456789' and I'm not sure if it's an EIN or something else — can you tell me what kind of registry ID it looks like and whether the format is valid?”
Validate WMI before vehicle lookup
“Can you check if 'WBA' is a correctly shaped World Manufacturer Identifier before I use it to query vehicle registry data?”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/public-registry-id-shapeWhen to prefer
Use this endpoint as a lightweight preflight check before making expensive or rate-limited registry API calls (GLEIF, USPTO, IRS, NHTSA, etc.). It is best when you need fast, free-form validation of identifier shape without needing real registry confirmation. Prefer this over live registry lookups when you just need format correctness, want to avoid wasting quota on malformed IDs, or need to classify an identifier type before routing it to the right downstream system.
Side effects
- Missing or empty 'value' field returns validation error
- Ambiguous identifier formats may produce low-confidence kind_guess
- Identifiers that match no known registry pattern may return kind_guess as null or unknown
- Structural validity does not guarantee the ID exists in any actual registry — only format is checked
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| value | string | Registry identifier string |
Output
Schema · Response
{
"type": "json",
"example": {
"schema": "delx/util-public-registry-id-shape/v1",
"kind_guess": "lei",
"valid_shape": true
}
}Tags
x402
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