---
title: "Static Pix QR Code: How It Works and Developer Responsibilities"
description: "Understand what a static Pix QR Code is, how it is generated by the API, its limitations, and why payment verification is your application's responsibility — not QRRapido's."
keywords: "pix qr code, static pix, pix qr code api, pix qr code integration, pix without central bank"
author: "QRRapido"
date: 2026-03-08
lastmod: 2026-03-08
image: ""
---

# Static Pix QR Code: How It Works and Developer Responsibilities

## What is a Static Pix QR Code?

Pix has two types of QR codes: **static** and **dynamic**.

| | Static Pix | Dynamic Pix |
|---|---|---|
| Amount | Variable (payer decides) | Fixed (set by recipient) |
| Generation | Any system | PSP/Central Bank intermediary |
| Central Bank registration | **No** | Yes |
| Payment notification | **No** | Yes (webhook) |
| Typical use | Donations, simple charges | E-commerce, tracked billing |

The QRRapido API generates **exclusively static Pix QR codes**. This is deliberate and sufficient for most use cases.

---

## How the API Generates the Pix QR Code

When you send a request with `type: "pix"`, the API assembles a string in the **EMV® QR Code** standard (the international standard adopted by Brazil's Central Bank) and generates the image:

```json
{
  "type": "pix",
  "content": "contact@yourcompany.com"
}
```

The `content` field must contain **only the Pix key** of the recipient. The API handles assembling the EMV payload correctly.

**Accepted keys:**
- Email: `contact@company.com`
- CPF/CNPJ: digits only — `12345678901` or `12345678000195`
- Phone: `+5511999999999`
- Random key (EVP): `123e4567-e89b-12d3-a456-426614174000`

---

## What the API Does NOT Do (and Why This Matters)

> **QRRapido has no integration with the Central Bank, any bank, or any PSP (Payment Service Provider).**

This means:

1. **The API does not know if the payment was made.** It only generates the QR code image. What happens after — whether the customer scanned it, whether the Pix was sent, whether it landed in the right account — is outside the scope of the API.

2. **There is no payment confirmation webhook.** The API does not send notifications when a Pix is received.

3. **The QR code does not expire automatically.** A static Pix QR code is valid indefinitely (or until the Pix key is removed by the recipient at the bank).

4. **There is no transaction traceability.** Two requests with the same key generate the same QR code (with cache). It is not possible to associate a scan with a specific transaction via the API.

---

## Your Application's Responsibility

If you use the API to generate Pix QR codes in a payment flow, **it is your application's responsibility to verify receipt**. The correct ways to do this are:

### Option 1 — Recipient's Bank Pix API
Connect directly to the Pix API of the bank where the key is registered. Most banks offer:
- Query of received charges
- Real-time notification webhook (when the bank supports it)

### Option 2 — PSP / Payment Gateway
Use an intermediary such as Mercado Pago, PagSeguro, Efí Bank, Asaas, etc. They offer dynamic Pix with full control: fixed amount, expiration, webhooks and unique identification per charge.

### Option 3 — Manual Verification
For low volumes or informal contexts (donations, in-person sales), the person responsible for receiving verifies the bank statement manually.

---

## Recommended Flow (with confirmation)

```
Your App                    QRRapido API             Recipient's Bank
    |                           |                        |
    |-- POST /generate (pix) -->|                        |
    |<-- qrCodeBase64 ----------|                        |
    |                           |                        |
    |-- Shows QR to customer    |                        |
    |                           |                        |
    |-- Query payment ---------------------------------->|
    |<-- Received status or not --------------------------|
    |                           |                        |
    |-- Releases product/service|                        |
```

---

## Complete Request Example

```bash
curl -X POST https://qrrapido.site/api/v1/QRManager/generate \
  -H "X-API-Key: your_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "content": "contact@yourcompany.com",
    "type": "pix",
    "size": 400,
    "outputFormat": "webp"
  }'
```

---

## Appropriate Use Cases for Static Pix via API

- Donation QR code on an institutional website
- Digital menu with key for in-person payment
- Batch QR generation for printed materials (flyers, cards)
- Applications where the seller and buyer interact in person and the seller confirms receipt in the bank app

## Use Cases That Require Dynamic Pix (not supported by this API)

- E-commerce with automatic order confirmation
- Fixed-amount billing with expiration
- Invoice issuance linked to payment
- Automated financial reconciliation

---

## Summary

| What the API does | What the API does NOT do |
|---|---|
| Generates the Pix QR code image | Verifies if the payment was made |
| Formats the EMV payload correctly | Sends confirmation webhook |
| Delivers PNG, WebP or SVG | Communicates with the Central Bank or banks |
| Works with any valid Pix key | Guarantees the key belongs to who claims it does |

Correct QR code generation is the API's responsibility. **Payment confirmation is your application's responsibility.**