Working Days is a working days and business days API that counts the working days and non-working days for any country and month. Pass a two-letter country code and month number to get total counts, working date lists, and non-working days marked with holiday names.
The Working Days API provides a simple, reliable way to integrate working days functionality into your applications. Built for developers who need production-ready working days capabilities without the complexity of building from scratch.
Quick Start
Using JavaScript
async function callWorkingDaysAPI() {
try {
const params = new URLSearchParams({
country: 'US',
month: 10
});
const response = await fetch(`https://api.apiverve.com/v1/workingdays?${params}`, {
method: 'GET',
headers: {
'x-api-key': 'YOUR_API_KEY_HERE'
}
});
const data = await response.json();
console.log(data);
} catch (error) {
console.error('Error:', error);
}
}
callWorkingDaysAPI();Using cURL
curl -X GET "https://api.apiverve.com/v1/workingdays?country=US&month=10" \
-H "x-api-key: YOUR_API_KEY_HERE"Get your API key: https://apiverve.com
📁 For more examples, see the examples folder
Installation
Choose your preferred programming language:
📦 NPM (JavaScript/Node.js)
npm install @apiverve/workingdaysView NPM Package → | Package Code →
🔷 NuGet (.NET/C#)
dotnet add package APIVerve.API.WorkingDaysView NuGet Package → | Package Code →
🐍 Python (PyPI)
pip install apiverve-workingdaysView PyPI Package → | Package Code →
💎 Ruby (RubyGems)
gem install apiverve_workingdaysView RubyGems Package → | Package Code →
🐘 PHP (Packagist)
composer require apiverve/workingdaysView Packagist Package → | Package Code →
🎯 Dart (pub.dev)
dart pub add apiverve_workingdaysView pub.dev Package → | Package Code →
🤖 Android (JitPack)
implementation 'com.github.apiverve:workingdays-api:1.0.0'🐹 Go
go get github.com/apiverve/workingdays-api/goWhy Use This API?
| Feature | Benefit |
|---|---|
| Multi-language SDKs | Native packages for JavaScript, Python, C#, Go, and Android |
| Simple Integration | Single API key authentication, consistent response format |
| Production Ready | 99.9% uptime SLA, served from 24 global regions |
| Comprehensive Docs | Full examples, OpenAPI spec, and dedicated support |
Documentation
- 🏠 API Home: Working Days API
- 📚 API Reference: docs.apiverve.com/ref/workingdays
- 📖 OpenAPI Spec: openapi.yaml
- 💡 Examples: examples/
What Can You Build?
The Working Days API is commonly used for:
- Web Applications - Add working days features to your frontend or backend
- Mobile Apps - Native SDKs for Android development
- Automation - Integrate with n8n, Zapier, or custom workflows
- SaaS Products - Enhance your product with working days capabilities
- Data Pipelines - Process and analyze data at scale
API Reference
Authentication
All requests require an API key in the header:
x-api-key: YOUR_API_KEY_HERE
Get your API key: https://apiverve.com
Response Format
Every APIVerve endpoint returns the same envelope — check status, then read data:
{
"status": "ok",
"error": null,
"data": { ... }
}Example Response
A real response from the Working Days API:
{
"status": "ok",
"error": null,
"data": {
"workingDaysCount": 21,
"nonWorkingDaysCount": 10,
"workingDays": [
"2023-10-02",
"2023-10-03",
"2023-10-04",
"2023-10-05",
"2023-10-06",
"2023-10-10",
"2023-10-11",
"2023-10-12",
"2023-10-13",
"2023-10-16",
"2023-10-17",
"2023-10-18",
"2023-10-19",
"2023-10-20",
"2023-10-23",
"2023-10-24",
"2023-10-25",
"2023-10-26",
"2023-10-27",
"2023-10-30",
"2023-10-31"
],
"nonWorkingDays": [
{
"date": "2023-10-01",
"reasons": [
"weekend"
],
"holiday_name": null
},
{
"date": "2023-10-07",
"reasons": [
"weekend"
],
"holiday_name": null
},
{
"date": "2023-10-08",
"reasons": [
"weekend"
],
"holiday_name": null
},
{
"date": "2023-10-09",
"reasons": [
"public holiday"
],
"holiday_name": "Columbus Day"
},
{
"date": "2023-10-14",
"reasons": [
"weekend"
],
"holiday_name": null
},
{
"date": "2023-10-15",
"reasons": [
"weekend"
],
"holiday_name": null
},
{
"date": "2023-10-21",
"reasons": [
"weekend"
],
"holiday_name": null
},
{
"date": "2023-10-22",
"reasons": [
"weekend"
],
"holiday_name": null
},
{
"date": "2023-10-28",
"reasons": [
"weekend"
],
"holiday_name": null
},
{
"date": "2023-10-29",
"reasons": [
"weekend"
],
"holiday_name": null
}
]
}
}Support & Community
- 🏠 API Home: Working Days API
- 💬 Support: https://apiverve.com/contact
- 🐛 Issues: GitHub Issues
- 📖 Documentation: https://docs.apiverve.com
- 🌐 Website: https://apiverve.com
Contributing
We welcome contributions! Please see CONTRIBUTING.md for guidelines.
Security
For security concerns, please review our Security Policy.
License
This project is licensed under the MIT License - see the LICENSE file for details.
Acknowledgments
Built with ❤️ by APIVerve
Copyright © 2026 APIVerve. All rights reserved.