---
title: "How to Generate QR Codes via API: All Supported Types"
description: "Complete guide to generating QR codes via REST API using each available type: URL, Pix, Wi-Fi, vCard, WhatsApp, SMS, email and free text."
keywords: "api qr code, generate qr code api, qr code rest api, qrrapido api, qr code types"
author: "QRRapido"
date: 2026-03-08
lastmod: 2026-03-08
image: ""
---

# How to Generate QR Codes via API: All Supported Types

The QRRapido API supports 8 QR code types. All use the same endpoint — the only difference is the `type` field and the specific fields that make up the `content`.

## Endpoint

```
POST /api/v1/QRManager/generate
X-API-Key: your_key_here
Content-Type: application/json
```

## Base Request Structure

```json
{
  "content": "...",
  "type": "url",
  "size": 400,
  "primaryColor": "#000000",
  "backgroundColor": "#FFFFFF",
  "outputFormat": "png"
}
```

| Field | Type | Default | Description |
|---|---|---|---|
| `content` | string | required | QR code content |
| `type` | string | `"url"` | QR code type (see below) |
| `size` | int | `300` | Size in pixels (100–2000) |
| `primaryColor` | string | `"#000000"` | Module color (hex) |
| `backgroundColor` | string | `"#FFFFFF"` | Background color (hex) |
| `outputFormat` | string | `"png"` | Format: `png`, `webp`, `svg` |

---

## Type `url` — Link / URL

The simplest: any valid URL.

```json
{
  "type": "url",
  "content": "https://yoursite.com/product/123"
}
```

> Use `https://` whenever possible. QR codes with HTTP may be blocked by some modern readers.

---

## Type `pix` — Pix Payment

The `content` must be the **Pix key** of the recipient. The generation produces a static Pix QR code (without connection to the Central Bank — see the dedicated Pix tutorial).

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

Accepted keys: CPF/CNPJ (digits only), email, phone in `+5511999999999` format, or random key (UUID).

---

## Type `wifi` — Wi-Fi Network

The `content` uses the standard `WIFI:` format:

```json
{
  "type": "wifi",
  "content": "WIFI:S:NetworkName;T:WPA;P:NetworkPassword;;"
}
```

| Parameter | Meaning | Values |
|---|---|---|
| `S:` | SSID (network name) | text |
| `T:` | Security type | `WPA`, `WEP`, `nopass` |
| `P:` | Password | text |
| `H:` | Hidden network (optional) | `true` / `false` |

---

## Type `vcard` — Business Card

The `content` must be a complete vCard v3:

```json
{
  "type": "vcard",
  "content": "BEGIN:VCARD\nVERSION:3.0\nFN:John Smith\nORG:Company Inc\nTEL:+15559876543\nEMAIL:john@company.com\nURL:https://company.com\nEND:VCARD"
}
```

---

## Type `whatsapp` — WhatsApp Link

```json
{
  "type": "whatsapp",
  "content": "https://wa.me/15559876543?text=Hi%2C%20I%27d%20like%20to%20know%20more"
}
```

The number must include country code and area code, without spaces or symbols. The `text` parameter is optional.

---

## Type `email` — Email with subject and body

```json
{
  "type": "email",
  "content": "mailto:contact@company.com?subject=Subject&body=Initial%20message"
}
```

---

## Type `sms` — Pre-filled SMS

```json
{
  "type": "sms",
  "content": "sms:+15559876543?body=Hi%2C%20I%20want%20more%20information"
}
```

---

## Type `texto` — Free Text

Any string up to 2048 characters:

```json
{
  "type": "texto",
  "content": "Table 12 — Priority service available at the main counter."
}
```

---

## Success Response

```json
{
  "success": true,
  "qrCodeBase64": "iVBORw0KGgo...",
  "qrId": "abc123",
  "generationTimeMs": 180,
  "remainingCredits": 42,
  "fromCache": false,
  "format": "png",
  "mimeType": "image/png"
}
```

To display the image directly in HTML:

```html
<img src="data:image/png;base64,{{ qrCodeBase64 }}" alt="QR Code" />
```

---

## General Tips

- **Colors**: maintain high contrast between `primaryColor` and `backgroundColor`. Avoid yellow on white or light gray on white.
- **Minimum printed size**: use `size` ≥ 400 for printing. For digital use (screens), 300 is sufficient.
- **Cache**: identical requests return `fromCache: true` without consuming additional credit.
- **Rate limit**: the `X-RateLimit-Remaining` and `X-Quota-Remaining` headers in the response indicate your current balance.