REST API

QR Code API
No auth. No keys. No signup.

Name: TheQRCode.io
Availability: InStock
Author: TheQRCode.io

One endpoint. POST some JSON. Get a QR code. Works from any language in under a minute.

POSThttps://theqrcode.io/api/public/qr-codes

No auth 100 req/hr free JSON in, PNG out

Quick start ↓OpenAPI spec

Need authentication, analytics, bulk operations, and webhooks? See the full REST API reference →

100

requests/hour free

QR code types

required headers

Quick start

Three ways to make your first request.

curl

curl -X POST https://theqrcode.io/api/public/qr-codes \
  -H "Content-Type: application/json" \
  -d '{
    "type": "url",
    "content": "https://example.com"
  }'

JavaScript

const res = await fetch('https://theqrcode.io/api/public/qr-codes', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    type: 'url',
    content: 'https://example.com',
  }),
});

const { imageUrl, qrImage } = await res.json();
// imageUrl  — hosted PNG, shareable, valid 24h
// qrImage   — data:image/png;base64,...

Python

import requests

res = requests.post(
    'https://theqrcode.io/api/public/qr-codes',
    json={'type': 'url', 'content': 'https://example.com'},
)
data = res.json()
print(data['imageUrl'])   # hosted PNG URL
print(data['qrImage'])    # base64 data URL

Endpoint reference

One endpoint handles all QR code types.

POST/api/public/qr-codes

Request body

Field	Type	Required	Notes
type	enum		`url` `wifi` `contact` `text`
content	string		Data to encode
settings.size	integer	-	64-1024px. Default 256
settings.color.dark	string	-	Hex, e.g. `#000000`
settings.color.light	string	-	Background hex color

Response

{
  "qrImage": "data:image/png;base64,iVBORw0KGgo...",
  "imageUrl": "https://theqrcode.io/api/public/qr-codes/view/abc123",
  "type": "url",
  "content": "https://example.com",
  "_meta": {
    "apiVersion": "1.0.0",
    "generatedAt": "2025-04-13T12:00:00.000Z"
  }
}

Rate limit headers

X-RateLimit-Limit

100

X-RateLimit-Remaining

requests left in window

X-RateLimit-Reset

Unix timestamp

QR code types

urlAny web URL

{ "type": "url", "content": "https://example.com" }

wifiWPA/WPA2 networks

{ "type": "wifi",
  "content": "{\"ssid\":\"MyNet\",\"password\":\"pass\",\"security\":\"WPA2\"}" }

contactvCard 3.0

{ "type": "contact",
  "content": "{\"firstName\":\"Jane\",\"lastName\":\"Doe\",\"phone\":\"+15551234567\",\"email\":\"jane@example.com\"}" }

textPlain string

{ "type": "text", "content": "Table 12" }

Custom colors + size

{
  "type": "url",
  "content": "https://example.com",
  "settings": {
    "size": 512,
    "color": {
      "dark": "#1a1a2e",
      "light": "#ffffff"
    }
  }
}

WiFi: full curl example

curl -X POST https://theqrcode.io/api/public/qr-codes \
  -H "Content-Type: application/json" \
  -d '{
    "type": "wifi",
    "content": "{\"ssid\":\"MyNetwork\",\"password\":\"MyPassword\",\"security\":\"WPA2\"}"
  }'
# For wifi & contact, "content" is a JSON string (not a raw WIFI:/vCard payload).

Rate limits

Free tier is per-IP. Paid plans include higher limits and authenticated endpoints.

Tier	Rate limit	Auth	Dynamic codes	Analytics
Free	100 req/hr per IP	None	-	-
Pro $29/mo	5,000 req/hr	API key

See pricing OpenAPI spec

Also available

MCP Server

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Function calling, OpenAI plugin, and MCP integration examples.

OpenAPI spec

Import into Postman, Insomnia, or generate a typed SDK.

Start building

No account. No key. One endpoint.

POSThttps://theqrcode.io/api/public/qr-codes

View quick start See paid plans

Quick start

Three ways to make your first request.

curl

curl -X POST https://theqrcode.io/api/public/qr-codes \
  -H "Content-Type: application/json" \
  -d '{
    "type": "url",
    "content": "https://example.com"
  }'

JavaScript

const res = await fetch('https://theqrcode.io/api/public/qr-codes', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    type: 'url',
    content: 'https://example.com',
  }),
});

const { imageUrl, qrImage } = await res.json();
// imageUrl  — hosted PNG, shareable, valid 24h
// qrImage   — data:image/png;base64,...

Python

import requests

res = requests.post(
    'https://theqrcode.io/api/public/qr-codes',
    json={'type': 'url', 'content': 'https://example.com'},
)
data = res.json()
print(data['imageUrl'])   # hosted PNG URL
print(data['qrImage'])    # base64 data URL

Endpoint reference

One endpoint handles all QR code types.

POST/api/public/qr-codes

Request body

Field	Type	Required	Notes
type	enum		`url` `wifi` `contact` `text`
content	string		Data to encode
settings.size	integer	-	64-1024px. Default 256
settings.color.dark	string	-	Hex, e.g. `#000000`
settings.color.light	string	-	Background hex color

Response

{
  "qrImage": "data:image/png;base64,iVBORw0KGgo...",
  "imageUrl": "https://theqrcode.io/api/public/qr-codes/view/abc123",
  "type": "url",
  "content": "https://example.com",
  "_meta": {
    "apiVersion": "1.0.0",
    "generatedAt": "2025-04-13T12:00:00.000Z"
  }
}

Rate limit headers

X-RateLimit-Limit

100

X-RateLimit-Remaining

requests left in window

X-RateLimit-Reset

Unix timestamp

QR code types

urlAny web URL

{ "type": "url", "content": "https://example.com" }

wifiWPA/WPA2 networks

{ "type": "wifi",
  "content": "{\"ssid\":\"MyNet\",\"password\":\"pass\",\"security\":\"WPA2\"}" }

contactvCard 3.0

{ "type": "contact",
  "content": "{\"firstName\":\"Jane\",\"lastName\":\"Doe\",\"phone\":\"+15551234567\",\"email\":\"jane@example.com\"}" }

textPlain string

{ "type": "text", "content": "Table 12" }

Custom colors + size

{
  "type": "url",
  "content": "https://example.com",
  "settings": {
    "size": 512,
    "color": {
      "dark": "#1a1a2e",
      "light": "#ffffff"
    }
  }
}

WiFi: full curl example

curl -X POST https://theqrcode.io/api/public/qr-codes \
  -H "Content-Type: application/json" \
  -d '{
    "type": "wifi",
    "content": "{\"ssid\":\"MyNetwork\",\"password\":\"MyPassword\",\"security\":\"WPA2\"}"
  }'
# For wifi & contact, "content" is a JSON string (not a raw WIFI:/vCard payload).

Tier

Rate limit

Auth

Dynamic codes

Analytics

Free

100 req/hr per IP

None

Pro $29/mo

5,000 req/hr

API key

QR Code APINo auth. No keys. No signup.

Quick start

Endpoint reference

Request body

Response

Rate limit headers

QR code types

Rate limits

Also available

MCP Server

AI Agents guide

OpenAPI spec

Start building

QR Code APINo auth. No keys. No signup.

Quick start

Endpoint reference

Request body

Response

Rate limit headers

QR code types

Rate limits

Also available

MCP Server

AI Agents guide

OpenAPI spec

Start building

QR Code API
No auth. No keys. No signup.

QR Code API
No auth. No keys. No signup.