General Barcode Generation
Generate scan-ready barcode images in 40 common formats
Bestseller
Multi-types Content QR Code Generation
Universal QR Code Generator
Create QR code images from text or URLs
What can this API do?
Text to QR codes
Encode text exactly, including spaces and line breaks.
Website links
Turn a URL into a static QR code for print or digital use.
Multilingual content
Encode supported Unicode text for international workflows.
Adjustable image size
Choose a square PNG size from 64 to 2048 pixels, subject to content capacity.
Downloadable PNG files
Retrieve a public image link and save it in your application.
Print and application workflows
Add QR generation to labels, onboarding and content workflows.
Annual plan
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API Document
HTTP Protocol:HTTPS
HTTP Method:POST
HTTP Endpoint:https://api.gugudata.io/v1/qrcode
Response Type:application/json; charset=utf-8
DEMO Endpoint:https://api.gugudata.io/v1/qrcode/demo
Live Demo:Try Interactive Demo
Full API Docs:developers.gugudata.io
API Request Parameters
| Name | Type | Is Required | Default Value | Remark |
|---|---|---|---|---|
| appkey | string | true | YOUR_APPKEY | Application key supplied in the query string. |
| content | string | true | Nonblank text or URL, preserved exactly including spaces and line breaks. At most 32768 UTF-8 bytes; QR capacity and selected size impose smaller limits. Shorten content or increase size when it cannot fit. | |
| size | integer | false | 200 | Integer image width and height from 64 to 2048 pixels. Defaults to 200; fractions, strings and null are rejected. |
API Response Parameters
| Name | Type | Remark |
|---|---|---|
| url | string | Public HTTPS URL of the generated PNG. Download and save the file; permanent hosting is not guaranteed. HTTP 400 / business 400 for invalid input, HTTP 500 / business 500 for generation failure, and HTTP 503 / business 500 when image storage is unavailable. |
API Response Status Codes
| Status Code | Explanation of Status Code | Remarks |
|---|---|---|
| 200 | Request processed successfully. | Some endpoints expose a separate application-level status field in the response body, such as `dataStatus.statusCode`. |
| 400 | Invalid request parameters or request format. | Check required fields, data types, and request body format. |
| 401 | Missing or unknown application key. | Provide a valid `appkey` with the request. |
| 403 | The application key is recognized but access is not allowed. | The key may be expired, inactive, or not permitted for the requested API. |
| 429 | Request rate or trial usage limit exceeded. | Reduce concurrency or retry after the limit window resets. |
| 500 | Internal service error. | Retry later or contact support if the error persists. |
| 503 | Upstream service unavailable. | Retry later; the requested upstream dependency is temporarily unavailable. |
Remote MCP
AI client access
Use this API through GuGuData Remote MCP
Connect your AI client once, authorize in the browser, and the client can use the GuGuData API tools available to your account. You do not need to paste an appkey into the MCP client.
Endpoint
https://mcp.gugudata.io/mcpGeneric MCP configuration
{
"mcpServers": {
"gugudata": {
"url": "https://mcp.gugudata.io/mcp",
"transportType": "streamable-http"
}
}
}Code Snippets
Decode QR Code from Image
Read QR code content from images
Wi-Fi Wireless Network QR Code Generation
Generate a Wi-Fi QR code for quick network onboarding