Pix key Regex

Considering that a Pix key represents a bank account within the Pix ecosystem, this is the most straightforward way to complete a payout using Pix. The only information required from the customer is their Pix key. Currently, we support 5 different key types, and we use RegEx validation to verify the format.

Note: As of July 01, 2026, the CNPJ may contain alphanumeric characters. Our validation supports both the legacy numeric format and the new alphanumeric format defined by the Brazilian Federal Revenue Service.

Type	Regex	Example
Email	`^[a-z0-9.!#$%&'+/=?^_{}~-]+@[a-z0-9-]+(?:\.[a-z0-9-]+)$`	`johndoe@example.com`
Phone Number	`^\+[1-9][0-9]\d{1,14}$`	`+5510998765432`
CPF (Tax Number)	`^[0-9]{11}$`	`12345678901`
CNPJ (Tax Number)	`^[A-Z0-9]{12}[0-9]{2}$`	`AB12CD3400EF95` (also accepts `12345678901234`)
Random Key	`^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$`	`123e4567-e89b-12d3-a456-426655440000`

Getting Started

Trio SDK

Pix

Receivables

Payments

Boleto

Webhooks

Operations