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Billing and Invoicing Software with API (2026) - Page 17

Last updated: April 2026

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600 software options

Freckle logo

Time tracking software

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Freckle provides details about the number of working days and time spent on various projects in each working day. It also includes expense tracking, invoicing, import from other time tracking applications like Basecamp, and integration with GitHub and Beanstalk for developers.

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AFAS Software logo

Human resources, payroll, and finance management

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AFAS Software is a suite of tools that automates processes for human resources, payroll, & finance management, providing personalized access to the platform for both employees & managers. AFAS features include automated invoice reconciliation, leave and absence registration, payroll analysis & more.

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OOTI logo

Enterprise project management software for architects

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OOTI is an enterprise project management software designed to help architecture firms of any size manage projects & resources, as well as track budgets & finances with a range of tools, including budget, invoice & payment management, plus project scheduling, time reports, file sharing, & more

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TYASuite logo

India’s 1st AI-Powered ZeroTouch AP & Procurement Platform

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ZeroTouch Invoice Automation by TYASuite is India’s 1ˢᵗ AI-powered solution designed to eliminate manual invoice handling.

Built for mid-sized businesses, it streamlines vendor invoice processing with 99% accuracy, cutting processing time by 90%.

The system auto-captures data, validates against

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FastSpring logo

SaaS eCommerce tool for managing payments and subscriptions

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FastSpring is a SaaS eCommerce software designed to help businesses manage payments, subscriptions, risks, compliance, checkout processes, billing, tax collection, and more on a centralized platform. Sales professionals can accept payments via multiple channels.

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Sellsy logo

CRM, invoicing, automation, marketing (+ more) in one place!

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The all-in-one sales suite to take the headache out of customer relationships. Manage your CRM, customer support portal, invoicing, and more from one platform!

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2Checkout logo

Online payment processing and billing platform

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Online businesses around the world sell more every day with 2Checkout payment processing. We're here to help you truly "go global" and offer a local buying experience to your customers.

Our checkout experience maximizes conversions by adapting to local languages, currencies and payment methods. It also reflects your brand, which buyers trust.

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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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Payoneer logo

Send and receive money locally and internationally

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Payoneer is a cross-border payments platform available in over 200 countries and 150 currencies, with multiple payout options

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Teamleader logo

Sell, bill and organise work in one place.

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Invoices, quotes, CRM, and planning. Manage your business easily in one place. Over 20,000 entrepreneurs and their teams hand over their paperwork to Teamleader's business software.

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Upland Timesheet logo

Timesheet Tracking Solutions for the Project Workforce

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workflow-driven project billing solution that automates project financial reporting, invoicing

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Giddh logo

Cloud-based accounting and financial management software

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Giddh is a cloud-based accounting software designed to help businesses manage tax filing, reporting, bank reconciliation, and various other financial processes on a centralized platform. Managers can use the dashboard to gain an overview of total expenses and KPIs via actionable analytics.

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Vendx logo

Procurement Processing Tool

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VENDX is a procurement processing tool that enables quick decision-making through the reduction of transaction backlog.

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iBE.net logo

Integrated Business Environment

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Manage T&M, fixed, retainer, milestone, % completion, advanced payment, not-to-exceed contracts and more using the most flexible pricing & billing in the market

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Bitrix24 logo

All in one business management workspace

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Bitrix24 is a free CRM that comes with unlimited free quotes and invoicing. Online payments (PayPal, Braintree, AuthorizeNet, Stripe, etc) are supported as well. Join 12 million businesses that use Bitrix24 free client management, time tracking, billing and invoicing platform.

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Standard ERP logo

Standard ERP is a powerful system

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Standard ERP is an intuitive business platform helping you reach your productivity goals and can be tailored to your business needs.

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Twikey logo

Billing and Invoicing Solution

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Twikey automates internal payment processes, so companies can collect invoices faster and create more customer payment convenience with Legal e-Mandates and a customizable payment follow-up system.

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Aqilla logo

Cloud Accounting Software for Business

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A consistent approach to document tracking from invoice through to payment, credit checking, clear and flexible aged debtor reporting and many more.

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Thryv logo

All-in-one management solution built for small business

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Billing and invoicing software for small business. Process cards online or via mobile at competitive rates. Includes electronic estimates and receipts.

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ePayco logo

Comprehensive payment & invoicing solution in Colombia

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ePayco is a technology company that has developed financial solutions that contribute to the different business models and payments of companies in Colombia. Taking into account that agility, transactional security and user experience are key factors for electronic commerce.

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BILL Accounts Payable & Receivable logo

BILL, a leader in financial automation software for SMBs

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Keep track of all your bills and invoices online on any device, sync with all major accounting software. Business bill payments made easy with Bill.com

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Apptricity Travel and Expense logo

Travel and expense management software

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Apptricity Travel and Expense Management helps businesses automate entering, reviewing, authorizing, approving, and auditing processes across expenses. It provides a single source of real-time data that ensures compliance with federal, state, and local regulations.

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WHMCS logo

Web hosting automation platform

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WHMCS is a web hosting automation platform which can manage signups, provisioning, billing and support for web hosting service providers

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Billdu logo

Billdu - fast and simple invoicing app for small businesses

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Billdu is an invoice maker for small businesses and freelancers which enables users to create and send invoices, track expenses, manage online stores, and more.

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Rev.io Billing logo

Sophisticated Billing and Customer Management Solutions

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Rev.io delivers agile billing and a powerful customer management system to scale with your growing business.

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