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Turn Google Sheets into a Invoicing & Billing API

Convert your Google Sheets into an invoicing API to create, track, and manage invoices automatically.

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The Problem

Creating invoices manually is time-consuming and error-prone. You lose track of payments, forget to send reminders, and struggle with reporting.

The Solution

SheetAPI transforms your invoice spreadsheet into an API. Generate invoices programmatically, track payment status, and automate reminders—all synced to your Google Sheet for easy access.

1

Set Up Your Google Sheet

Create a spreadsheet with columns like: Invoice #, Client, Date, Amount, Status, Due Date, Items, Notes

2

Connect to SheetAPI.pro

Sign up (takes 10 seconds), authorize Google, and paste your sheet URL. Done.

3

Start Using Your API

Get instant REST API endpoints to create, read, update, and delete your invoicing & billing data.

Code Examples

Here's how simple it is to work with your invoicing & billing data:

Fetch All Records

# Using cURL curl -H "Authorization: Bearer YOUR_API_KEY" \ https://api.sheetapi.pro/v1/YOUR_SHEET_ID
// Using JavaScript (fetch) const response = await fetch('https://api.sheetapi.pro/v1/YOUR_SHEET_ID', { headers: { 'Authorization': 'Bearer YOUR_API_KEY' } }); const data = await response.json(); console.log(data); // Your invoicing & billing records

Create a New Record

# Using cURL curl -X POST \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{"Invoice #":"VALUE1","Client":"VALUE2"}' \ https://api.sheetapi.pro/v1/YOUR_SHEET_ID
// Using JavaScript (fetch) const newRecord = { 'Invoice #': 'Sample value', 'Client': 'Another value' }; const response = await fetch('https://api.sheetapi.pro/v1/YOUR_SHEET_ID', { method: 'POST', headers: { 'Authorization': 'Bearer YOUR_API_KEY', 'Content-Type': 'application/json' }, body: JSON.stringify(newRecord) });

Update a Record

// Update by row ID const response = await fetch('https://api.sheetapi.pro/v1/YOUR_SHEET_ID/ROW_ID', { method: 'PATCH', headers: { 'Authorization': 'Bearer YOUR_API_KEY', 'Content-Type': 'application/json' }, body: JSON.stringify({ 'Status': 'Updated' }) });

Key Features for Invoicing & Billing

⚡ Real-Time Sync

Changes in your Google Sheet reflect in the API instantly. No delays, no manual syncing.

🔔 Webhooks

Get notified instantly when data changes. Trigger automations, send emails, or update other systems.

📝 Full CRUD Operations

Create, Read, Update, and Delete records via REST API. Complete control over your data.

🔒 Secure Authentication

API keys keep your data protected. Only authorized users can access or modify your records.

Frequently Asked Questions

Can I auto-generate invoice numbers?

Yes! Use the API to fetch the last invoice number and increment it automatically.

How do I track payment status?

Update the status field via API when payments are received. Set up webhooks to trigger follow-ups for overdue invoices.

Can I integrate with payment processors?

Absolutely! Connect SheetAPI with Stripe, PayPal, or any payment gateway to update invoice status automatically.

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Turn your Google Sheets into a powerful invoicing & billing API in 30 seconds.

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