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Billing and Invoicing Software with API (2026) - Page 2

Last updated: March 2026

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576 software options

Rippling logo

Workforce management across HR, finance, and IT. 

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Rippling Spend: Consolidate your business’s corp cards, bill pay, travel and expense management, into one modern system with built-in approvals, custom policies, and automatic reconciliation.

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QuickBooks Online logo

Accounting and business management software

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Use QuickBooks Online to create custom invoices with your own branding. Insert Pay Now links to your invoices and accept payment via credit card or bank payment

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Housecall Pro logo

Field service management application for businesses

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Housecall Pro simplifies billing with one-click digital invoicing, automatic reminders, and secure payment methods. Keep track of payments and send automated receipts. Go paperless and boost efficiency. Join over 45,000 businesses and sign up for a free trial today!

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Square Point of Sale logo

iPad & Android point of sale (POS) system

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Square Point of Sale is a POS solution for Android and iOS devices which includes tools for managing payments, digital receipts, inventory, reports, and more.

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Clio logo

Cloud-based legal practice management tool for law firms.

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Legal billing software that gives you sleek, customizable invoices. Generating a bill and receiving payment with Clio is quick and easy—and can be done online.

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Time Tracker logo

Track time for payroll, billing and productivity.

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Time Tracker + Billing keeps all of your invoices and client payments in one place. It’s a complete time and billing suite, accessible anywhere.

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Hubstaff logo

Centralized app for time tracking and productivity metrics

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Streamline your billing with Hubstaff: automate and track invoicing and billable hours seamlessly. Enhance your brand with customizable invoices. Easy integration with QuickBooks, PayPal, and more. No credit card needed, available for iOS and Android. Simplify billing in a few clicks.

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Jobber logo

Tool that manages quotes, schedules, invoices and tasks

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Join over 250,000 home service pros using Jobber. We make it easy to schedule appointments, quote, invoice, and get paid faster. Organize your field service business and impress your clients - get started today.

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PandaDoc logo

Cloud-based tool for creating, editing and signing documents

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Sales teams can collect payments directly inside their PandaDoc proposals, quotes and contracts as soon as the documents get eSigned. You can further integrate via Zapier with accounting and invoicing software like Freshbooks and Quickbooks online.

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webexpenses logo

Software for smarter expense management & invoice processing

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Webexpenses provides simple, intuitive cloud-based software for smarter expense management and invoice processing, with full support and seamless integration.

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HoneyBook logo

Client management for freelancers & SMBs

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Secure and easy digital payments. Use payment schedules and reminders to never miss an a client payment. Give clients a frictionless payment experience. Small businesses have booked over $2 billion in business through HoneyBook. Get paid quickly and on time, every time.

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Paymo logo

Task Management, Time Tracking, and Accounting for SMBs

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Accurately track your work time and create estimates and invoices in 18 languages. Custom templates available.

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Abby logo

Billing and invoicing platform

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Abby helps businesses ensure that customer documents are legal and comply with the rules. Customers can pay online and receive reminders for late payments.

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QuickBooks Online Advanced logo

Accounting & business management for small businesses

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Automate billing and invoicing with customizable templates, batch processing, and real-time payment tracking for efficient operations.

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PayPal Invoicing logo

Free online invoice creation and sending

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PayPal Invoicing is a free solution for creating and sending online invoices within a PayPal Business account. The tool allows users to create custom-branded invoice templates, populate billing details, track payments, view billing histories, schedule invoices, accept partial payments, and more.

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TimeCamp logo

A 100% free time tracker for teams. Unlimited users for $0.

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TimeCamp is a time tracking platform with which SMBs can track billable hours, generate automatic invoices & manage employee time & attendance

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BQE CORE Suite logo
Category Leaders

Cloud-based firm management tool for A&E firms.

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BQE CORE is a cloud-based software designed specifically for architecture and engineering firms. The platform integrates accounting, invoicing, project management, and resource planning features that streamline operations across entire organizations. BQE CORE enables firms to track time and expenses, manage projects profitably, and access real-time financial data through a centralized system that eliminates the need for multiple software solutions.

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BigTime logo

AI-powered scoping, project, time, and billing software

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BigTime helps reduce operational costs, align talent to projects, accelerate payments, and enable decision-making. With 20+ years of experience, BigTime can get you up and running quickly, operate with flexibility and agility, and enable you to solve today’s challenges and scale with you tomorrow.

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PracticePanther Legal Software logo

Cloud-based law practice management tool for law firms.

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PantherPanther is the top-rated, easiest-to-use billing and invoicing software on the market. Streamline payment processes and boost collection rates from anywhere.

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Odoo logo

All-in-one open-source business software

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Easily manage recurring billing, subscribers, sales, and more with Odoo’s automated tools. Quickly provide clear contracts and flawless, automated invoices; take care of taxes without stress; and handle payments - all done automatically according to your settings.

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Flowlu logo
Category Leaders

Work automation and team collaboration in one platform.

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Keep all financial records in one place with real-time insights and visual reports to track expenses and boost revenue. Create and send professional invoices in seconds, accept online payments, and automate billing to streamline cash flow. Stay organized, get paid faster, and impress your clients.

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Elorus logo
Category Leaders

Cloud Invoicing & Time Tracking for modern professionals

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Discover a super-easy online invoicing & billing software that helps you focus on making your professional mark in the business world. Start with our lifelong free plan!

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Everhour logo
Category Leaders

Time tracking, scheduling, budgeting & expenses software.

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Everhour is a time tracker that can facilitate the billing & invoicing process and integrate with the most popular accounting software such as QuickBooks, Xero, and FreshBooks. Сhoose a billing method, set a billing rate, automate your invoicing process, and keep track of your finances fully.

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Avaza logo
Category Leaders

All-in-one, client-focused project management for teams.

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Access multi-currency expense tracking, budgeting and billing all in one app with Avaza. Available in the cloud, from any device.

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BILL Spend & Expense logo

The all-in-one expense management solution.

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BILL Spend & Expense (formerly Divvy) is the all-in-one expense management solution.

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