Kratko EIN Validator
Real-time EIN validation API for B2B payment onboarding and KYB compliance. Validates 9-digit EINs against IRS prefix assignment rules and returns the issuing IRS campus, validity status, and formatted EIN. ### Response includes - Valid/invalid determination - Formatted EIN (XX-XXXXXXX) - IRS prefix - Issuing campus location ### Use cases - B2B payment onboarding - KYB (Know Your Business)…
Kratko EIN Validator endpoints
| Method | Endpoint | Description |
|---|---|---|
| GET |
EIN Validator /v1/tools/ein/{ein} |
Validates US Employer Identification Numbers against IRS prefix assignment rules. Returns validity, issuing campus, and format details. |