Validate IBAN, VAT, SWIFT, LEI, and credit cards instantly. Free 50/day. Now with a landing page and 100 SEO validator pages.
How to pay
Pick whichever fits your workflow — you can switch any time.
Subscribe
$19/month
Predictable monthly cost with included usage. Best for steady, high-volume traffic.
- Unlimited tools within plan limits
- One API key, billed once a month
- Cancel any time
Pay-per-call
$0.02 per call
Charge agents in USDC the moment they call a tool. No subscriptions, no signup — pay only for what you use.
- 2 priced tools available
- Settled in USDC on Base
- No account or API key required
Validate LEI (Legal Entity Identifier) codes instantly. 20-character alphanumeric codes defined by ISO 17442. Checks length, character set, and mod-97-10 checksum.
Tools:
- validate_lei — validate format + checksum
- parse_lei — parse into LOU prefix, entity ID, check digits
Example
Input: 5493001KJTIIGC8Y1R12
Output: { "valid": true, "lei": "5493001KJTIIGC8Y1R12", "lou_prefix": "5493", "reserved": "00", "entity_id": "1KJTIIGC8Y1R", "check_digits": "12" }
Links
- Landing + live demo: https://boring-saas-infra.pages.dev/finance-tools
- LEI validator page: https://boring-saas-infra.pages.dev/validate/validate-lei
- 15 entity-type pages: https://boring-saas-infra.pages.dev/validate/ (bank, corporation, fund, insurance, broker, government, and more)
- Pricing: Free 50/day · Pro $19.99/mo -> https://checkout.suby.fi/p/pro_v1vsrhgd50oz4f0g266g33am
Notes
- Format + checksum only. For LEI lookup against GLEIF, use their API.
- REST endpoint: https://finance-validators.boring-saas-infra.workers.dev/lei