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NetIntel IBAN Validator
x402
NetIntel IBAN Validator is a paid API for AI agents from netintel.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).
Validates an IBAN offline using mod-97 check digits, per-country structure rules, and bank/branch code extraction for ~80 countries — no upstream calls, instant result
Price / call$0.005
Success—
StatusUnknown
How this service works
Validate any IBAN offline — mod-97 check digits, per-country structure, bank/branch extraction, and pretty formatting for ~80 countries — deterministic, instant, no upstream. A structurally invalid IBAN is a real answer: valid:false + findings naming exactly what failed. Pass iban as ?iban= (GET) or a JSON body (POST).
Output
A JSON object containing: normalized electronic-format IBAN, a boolean `valid` flag, country code and name, SEPA membership boolean, extracted bank_code, branch_code, and account_number (where defined by country structure), check_digits string, boolean sub-results for length_ok / structure_ok / checksum_ok, a print-friendly `formatted` string grouped in blocks of 4, and a `findings` array listing exactly which checks failed when valid is false.
Example use cases
Payment form IBAN sanity check
“A user just typed 'GB29NWBK60161331926819' into our checkout form as their bank account — can you validate it and tell me if it's a valid UK IBAN and what the bank code is?”
Debugging a rejected wire transfer
“Our payment processor rejected this IBAN: FR7630006000011234567890189 — can you run a full validation and tell me exactly what's wrong with it, like whether the checksum failed or the structure doesn't match France's format?”
Bulk pre-screening IBAN before payroll
“Before we send payroll, I need to verify this employee IBAN: NL91ABNA0417164300 — check if it's structurally valid, extract the bank code, and confirm whether the Netherlands is in SEPA.”
Technical details
Endpoint
GEThttps://netintel.dev/iban/validate?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need instant, offline IBAN validation with no latency from upstream banking APIs — ideal for form validation, pre-payment checks, or environments where you cannot or do not want to hit a live bank registry. It provides richer structural decomposition (bank code, branch code, account number, SEPA flag) than simple regex checks, and gives precise failure reasons rather than a binary pass/fail. Prefer a live bank registry lookup if you also need to confirm the account is active or that the bank is currently operational.
Side effects
- Invalid or missing `iban` query parameter returns an error response
- IBAN from an unsupported or unrecognized country returns valid:false with a findings entry indicating unknown country structure
- Checksum failure returns valid:false with checksum_ok:false in findings
- Length mismatch for the given country returns valid:false with length_ok:false
- Malformed non-IBAN string returns valid:false with multiple findings
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"iban": "DE89370400440532013000",
"valid": true,
"country": "DE",
"findings": [],
"bank_code": "37040044",
"formatted": "DE89 3704 0044 0532 0130 00",
"length_ok": true,
"branch_code": null,
"checksum_ok": true,
"sepa_member": true,
"check_digits": "89",
"country_name": "Germany",
"structure_ok": true,
"account_number": "0532013000"
}
}Tags
x402
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