castomAPI
Get your key

Verify & identity · 2 operations

Crypto API

Encrypt and decrypt with the platform's keys, so nothing sensitive travels or rests in the clear.

Utilities 1 token API key

Endpoints in Crypto

POSTAuthenticate and decrypt AES-256-GCM ciphertext using IV/v1/crypto/decryptfree POSTEncrypt plaintext using AES-256-GCM with auto-generated IV/v1/crypto/encryptfree

Cost and limits

This operation costs 1 token. A call that fails is never billed. Every account gets 1000 free tokens a month; paid balances never expire.

Rate limits per minute

No key 10 · Free 60 · Pro 300 · Enterprise 1200 ·

OpenAPI

https://app.castomapi.com/docs/json

Verify & identity

Verify

Thirty-six checks: IBAN, VAT, NIP, PESEL, REGON, phone, e-mail, sanctions, VIN, cards, addresses and more.