# Bank and Tax ID Validators

Validate IBAN, BIC, card number, US routing, EU VAT and US EIN formats and check digits.

## How to pay

Machine-payable over x402. USDC on: Base (eip155:8453), Solana (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp), Polygon (eip155:137), Arbitrum One (eip155:42161).
No accounts. No API keys. No signup. The paying wallet is the account.

## Machine-readable

- OpenAPI: https://bank-validators.x402tookit.com/openapi.json
- x402 manifest: https://bank-validators.x402tookit.com/.well-known/x402
- Catalog (free): https://bank-validators.x402tookit.com/catalog
- Health (free): https://bank-validators.x402tookit.com/health
- Uptime (free): https://bank-validators.x402tookit.com/uptime

## Endpoints (8)

### GET /aba-routing-check — $0.02
Check a US ABA routing number: 3-7-1 weighted checksum and the Federal Reserve district from the prefix.
Params: routing: string
Example: https://bank-validators.x402tookit.com/aba-routing-check?routing=021000021

### GET /bic-parse — $0.02
Parse a SWIFT BIC (ISO 9362): bank code, ISO 3166 country, location, branch; checks format and country.
Params: bic: string
Example: https://bank-validators.x402tookit.com/bic-parse?bic=DEUTDEFF500

### GET /card-check — $0.02
Luhn check plus card brand and length from IIN ranges (Visa, Mastercard, Amex...). Test numbers only; output is masked.
Params: number: string
Example: https://bank-validators.x402tookit.com/card-check?number=4242+4242+4242+4242

### GET /ein-format — $0.02
Check a US EIN's format and whether its 2-digit prefix is one the IRS assigns. Format only, not existence.
Params: ein: string
Example: https://bank-validators.x402tookit.com/ein-format?ein=12-3456789

### GET /eu-vat-format — $0.02
Offline EU VAT number check: per-country format for 27 states plus the national checksum where known. No lookup.
Params: vat: string
Example: https://bank-validators.x402tookit.com/eu-vat-format?vat=NL820646660B01

### GET /eu-vat-vies — $0.03
Live EU VIES check: is this VAT number registered, and under what name. Member state outages give UNVERIFIED.
Params: vat: string
Example: https://bank-validators.x402tookit.com/eu-vat-vies?vat=IE6388047V

### GET /iban-parse — $0.02
Split an IBAN into country, check digits, bank code, branch and account using its country layout.
Params: iban: string
Example: https://bank-validators.x402tookit.com/iban-parse?iban=DE89+3704+0044+0532+0130+00

### GET /iban-validate — $0.02
Validate an IBAN: ISO 13616 mod-97 checksum plus per-country length and layout for 88 registry countries.
Params: iban: string
Example: https://bank-validators.x402tookit.com/iban-validate?iban=GB82+WEST+1234+5698+7654+32

## Terms

Checks are computed locally from published check-digit and format rules (and, for EU VAT, optionally the EU VIES service). A pass proves a number is well formed, not that an account, card, tax registration or business exists or belongs to anyone. Never send real card numbers; use published test numbers. Not financial, legal or tax advice.