Invoice Generator API

Welcome to the Invoice Generator API, a tool designed to simplify the process of creating invoices in your applications. Whether you're a small business owner or an enterprise, this API allows you to generate custom invoices effortlessly. With support for customizable fields, PDF generation, and multi-language capabilities, it's a one-stop solution to streamline your billing process.

Use Cases

  • Creating invoices for VAT compliance: Automatically generate invoices for tax reporting purposes, ensuring compliance with local VAT laws.
  • Generate PDF invoices: Allow your users to create downloadable, shareable PDF invoices directly from your application.
  • B2B invoicing: Easily create invoices for corporate clients, including detailed billing terms and itemized services.
  • Customizable features: Add additional fields like "Purchase Order" numbers, "Discount" rates, or other business-specific fields.
  • Recurring billing: Generate invoices on a regular schedule for subscription-based businesses or services.

API Examples

Here is how you can use the Invoice Generator API to create a custom invoice with just a few simple steps. Below is a common example using curl:

curl https://invoice-generator.com \ 
  -H "Authorization: Bearer myApiKey" \ 
  -d from="Nikolaus Ltd" \ 
  -d to="Acme, Corp." \ 
  -d logo="https://example.com/img/logo-invoice.png" \ 
  -d number=1 \ 
  -d date="Feb 9, 2015" \ 
  -d due_date="Feb 16, 2015" \ 
  -d "items[0][name]"="Starter plan monthly" \ 
  -d "items[0][quantity]"=1 \ 
  -d "items[0][unit_cost]"=99 \ 
  -d notes="Thanks for being an awesome customer!" \
> invoice.pdf
                

This example will generate an invoice in PDF format, filled with the details you provide. You can customize the "from" and "to" fields, as well as the "items" section, to match your specific business needs.

Custom Fields & Localization

The Invoice Generator API allows you to extend the functionality of the invoices by including custom fields such as purchase order numbers, internal tracking codes, and much more. Additionally, you can localize the generated invoices to different languages and currencies, which is perfect for international clients or different tax jurisdictions.

  • Custom Fields: Add extra fields to your invoices like "Customer ID" or "Contract Number" for better tracking and reporting.
  • Localization: Automatically convert your invoices to different languages and currencies based on your client's location. Support for multiple languages, including English, Spanish, French, German, and more.
  • Tax Rates & Discounts: Set custom tax rates or apply discounts directly within the invoice, giving you more control over your billing process.

Real-time Analytics Dashboard

Track your invoice performance with our comprehensive analytics suite. Monitor payment statuses, overdue invoices, and revenue trends in real-time. Get insights into your cash flow patterns and optimize your billing strategies for maximum efficiency.

Payment Tracking

Monitor payment statuses and send automated reminders

Revenue Insights

Analyze revenue trends and forecast future earnings

Client Analytics

Understand client behavior and payment patterns

Enterprise-Grade Security

Your data security is our top priority. We implement bank-level encryption, secure API authentication, and comply with international data protection regulations including GDPR and CCPA. All invoice data is encrypted both in transit and at rest.

🔒 256-bit SSL Encryption

All data transmissions are protected with military-grade encryption

🛡️ API Key Management

Secure API keys with role-based access control and rotation

📋 GDPR Compliance

Full compliance with international data protection regulations

🔍 Audit Trails

Complete activity logs for security and compliance monitoring

Seamless Integrations

Connect with your favorite tools and platforms. Our API integrates seamlessly with popular accounting software, CRM systems, and e-commerce platforms. Automate your entire billing workflow from lead to payment.

QuickBooks

Stripe

Shopify

Salesforce

PayPal

Xero

WooCommerce

HubSpot

Professional Template Gallery

Choose from our extensive collection of professionally designed invoice templates. Each template is fully customizable and optimized for different industries and business types. Create invoices that reflect your brand identity.

📄 Modern Minimalist

Clean, professional design perfect for tech companies and startups

🎨 Creative Studio

Vibrant, artistic templates for creative agencies and freelancers

🏢 Corporate Classic

Traditional, formal designs for established businesses

Mobile-First Design

Create and manage invoices on the go with our mobile-optimized interface. Our responsive design ensures perfect functionality across all devices, from smartphones to tablets. Never miss a billing opportunity again.

📱 Native Mobile Apps

Dedicated iOS and Android apps with offline capabilities

⚡ Instant Sync

Real-time synchronization across all your devices

Intelligent Automation

Let our AI-powered automation handle repetitive tasks. Set up recurring invoices, automated payment reminders, and smart follow-ups. Our machine learning algorithms optimize send times and content for maximum payment success rates.

🤖 Smart Reminders

AI-optimized reminder scheduling

📅 Recurring Billing

Automatic invoice generation

📊 Performance Analytics

ML-powered insights and recommendations

Developer Resources

Comprehensive documentation, SDK libraries, and developer tools to get you started quickly. Interactive API explorer, code samples, and detailed tutorials for all major programming languages.

📚 Comprehensive Docs

Detailed API reference with live examples and use cases

🔧 SDK Libraries

Pre-built libraries for Python, JavaScript, PHP, Ruby, and more

🚀 Quick Start Guide

Get your first invoice generated in under 5 minutes

🎮 Interactive Playground

Test API calls directly in your browser

Global Currency Support

Support for over 180 currencies with real-time exchange rates. Automatically convert prices, apply regional tax rates, and format invoices according to local standards. Perfect for international businesses and freelancers.

💵

USD

💶

EUR

💷

GBP

💴

JPY

🪙

BTC

💰

180+

Lightning-Fast Performance

Our globally distributed CDN ensures sub-second response times worldwide. 99.9% uptime guarantee with automatic failover and load balancing. Generate thousands of invoices per minute without performance degradation.

99.9%

Uptime Guarantee

<500ms

Average Response Time