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Every payment, with what it really cost. Early access

The PIX API gives your software the fee on every card payment, a closed month ready for the books, and the exports accountants already use in Spain and Germany.

Accounting softwarePull a reconciled month with VAT split and every card fee as a deductible expense.
Platforms for merchantsShow your merchants what each payment cost, inside your own product.
AI assistantsLet an assistant answer questions from a merchant’s own payment data.

Quickstart

Three calls take you from a key to a list of payments with their fees.

  1. Get a key. Keys open with the public API. Until then, request early access and we will set you up with a key for example data.
  2. Check who the key belongs to. Every key belongs to one merchant. GET /v1/merchant tells you which.
  3. Read payments. GET /v1/payments returns payments newest first, each with its fee.

Base URL: https://pix.solventek.com/api/v1

curl "https://pix.solventek.com/api/v1/payments?limit=20" \
  -H "Authorization: Bearer $PIX_API_KEY"

How PIX works

A merchant sends PIX the export from their payment provider. PIX reads every payment, works out what it cost, assigns it to a store and closes the month. Your software reads the result.

The merchant’s shopsCard terminals, online payments and more.
Their payment providerProduces the transaction export.
PIXFees per payment, stores, month close, VAT.

PIX only reads. It never moves money, never retries or refunds a payment and never acts on a merchant’s behalf. Nothing in this API can change what happened to a payment.