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ISIN Validator
x402
ISIN Validator is a paid API for AI agents from x402-datashop-production.up.railway.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Validates an ISIN code by checking structure regex and Luhn checksum, returning parsed components and validity status
Price / call$0.002
Success—
StatusUnknown
How this service works
Deterministic ISIN check before routing an order or paying a market-data API: structure regex (2-letter country or XS/EU, 9-char NSIN, check digit) and the Luhn checksum over the base-36 expansion. Query: ?isin=US0378331005. Returns valid, country_code, nsin, check_digit and is_international. A corrupted ISIN means a rejected order or the wrong instrument. Pure offline computation, 1y cache.
Output
Returns a JSON object with: valid (boolean), country_code (2-letter ISO or XS/EU prefix), nsin (9-character national securities identifier), check_digit, and is_international (boolean indicating XS/EU prefix instruments).
Example use cases
Example prompt
“Can you check whether US0378331005 is a valid ISIN — I want to make sure the structure and check digit are correct before I route the order.”
Technical details
Endpoint
GEThttps://x402-datashop-production.up.railway.app/v1/validate/isinWhen to prefer
Choose this endpoint when you need a fast, purely deterministic, offline ISIN validation with no external dependency — ideal as a pre-flight check before routing orders or calling paid market-data APIs, where a bad ISIN would waste money or cause a rejected trade. Prefer over custom regex implementations because it also handles the Luhn base-36 checksum correctly.
Side effects
- ISIN shorter or longer than 12 characters returns invalid with structural error
- Non-alphanumeric characters in ISIN cause regex failure and invalid result
- Correct structure but wrong Luhn check digit returns valid=false
- Missing isin query parameter returns 400 bad request
- Malformed request returns error response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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