Free tools
Small tools
for real payment bugs.
Utilities we wrote while shipping MercadoPago and webhooks in production. They run in your browser, upload nothing and need no account.
Mercado Pago webhook signature validator
Paste x-signature, x-request-id, data.id and your secret to check a webhook signature and see the signed manifest and both hashes.
Open the toolMercado Pago rejection codes (status_detail)
The documented status_detail for rejected, pending and in-process payments, like cc_rejected_other_reason: what it means and what the buyer, the seller and the developer should do.
Open the toolLATAM payment fee calculator
What Mercado Pago, Stripe, PayPal and Polar charge in Argentina, Brazil, Mexico, Chile and Colombia: the fee and net on your amount, with the official source of every rate.
Open the tool