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Introduction
Authentication
Making Requests
Errors
MCP Server
Barcode Generator
CV to JSON Parser
DNS Lookup
Data Matrix Generator
Gender Prediction
OpenGraph Data Extractor
PDF Invoice Generator
PDF Packing Slip Generator
PDF Purchase Order Generator
PDF Quote Generator
PDF Receipt Generator
QR Code Generator
Stylised QR Code Generator
Text Info
WHOIS Lookup
Authentication
All API requests require authentication via an API key. This page explains how to get and use your keys.
Getting an API Key
Sign up for a free accountGo to your Dashboard
Click Generate New Key
Copy the key and store it securely
Using Your API Key
Include your API key in the X-Api-Key header:
curl -H "X-Api-Key: swa_your_api_key_here" \
-H "Content-Type: application/json" \
https://simplewebapis.com/api/qrcode \
-d '{"text": "https://example.com"}'
Security Note: Never expose your API key in client-side code, public repositories, or share it with unauthorized parties. If you suspect a key has been compromised, revoke it immediately from your dashboard.