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Top Rated Billing and Invoicing Software with Api - Page 17

Last updated: July 2026

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620 software options

metasfresh logo

License-free business software: customizable & updatable

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metasfresh ERP is a state-of-the-art, agile, license-free ERP software developed by metas GmbH from Germany. It is the first license-free open source ERP system for medium-sized companies from industry and trade in the DACH region that is able to compete with market-leading proprietary systems.

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Tipalti logo

Finance automation and accounts payable solution

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Tipalti is the only solution to automate your invoice processing alongside end-to-end accounts payable, global payments, and procurement. Integrates seamlessly with QuickBooks, NetSuite, Xero, Sage and more.

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AvidXchange logo

Automated AP for mid-market businesses

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AvidXchange automates billing and invoicing for mid-market businesses. AvidPay bill payment software and AvidInvoice invoice management software streamline your entire billing and invoicing process while matching your current approval workflows.

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Simplero logo

All-in-one marketing software

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Simplero is a single software for your website, sales funnels, email marketing, online courses, and membership sites.

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EBizCharge logo

Accept payments faster in your ERP, CRM & eCommerce platform

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EBizCharge Billing and Invoicing Software allows your customers to process payments online securely and remotely from anywhere.

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vcita logo

Appointment scheduling and reminder solution

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Create and email branded invoices and track your business income with a centralized dashboard. Let clients pay for your services online, accept any credit card.

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PaySimple logo

Payments today. Partners for Tomorrow.

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PaySimple is the leading payments management solution for service-based businesses, powering the cashflow of over 20,000 companies nationwide.

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InvoiceSherpa logo

Invoice payment reminder app

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InvoiceSherpa is an invoice management and debt recovery application that helps to track and follow up with overdue payments. It integrates with major accounting apps, automatically extracting invoice and customer data from the core accounting software, and updating the data when payments are made.

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Unanet ERP GovCon logo

Web-based integrated project management and ERP solution

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Unanet is an integrated project management solution which offers tools for resource planning, accounting, workforce collaboration, timesheet management and more

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Accelo logo

Move from operational chaos to profitable growth.

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Accelo automatically builds invoices from logged time, expenses, and approved work — eliminating manual billing cycles. With retainer management and QuickBooks/Xero integrations, teams recover 3–7% in previously untracked revenue.

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Zoho Inventory logo

Order and inventory management for growing businesses

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Zoho Inventory streamlines operations for businesses, enabling them to manage their inventory, sales & purchase orders and shipments more effectively.

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QuickBooks Money logo

Mobile credit card processor for vendors

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QuickBooks Money is a payment management and mobile payment gateway allowing vendors to process credit card transactions via mobile application. The payment platform uses a credit card reader plugin enabling users to process payments and request customer electronic signatures via a touch screen.

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ablefy logo

A sales platform with payment processing.

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ablefy allows anyone wishing to sell courses and other products online to do so. This offer is an SaaS sales platform for companies of any size, which also handles payments if required.

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a3factura logo

Invoicing, budgeting, and billing software for SMEs in Spain

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a3factura is Spanish-language software designed to issue budgets and invoices for SMEs and freelancers in Spain. It also manages collections and payments and prepares statistics on customers, products, and their profitability, and enables connection with the account manager. It is based in the cloud and accessible from any device.

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billage logo

Cloud-based invoicing and CRM software for SMBs

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billage is an online CRM and client billing & invoicing solution for freelancers, micro-enterprises and small businesses

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MineralTree TotalAP logo

Accounts payable & payment automation

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Payment automation solution for mid-sized businesses. Integrated with accounting systems / ERPs.

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Stax logo

All-In-One Payment Processing Platform

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Stax delivers seamless payment processing and scalable embedded payment solutions to SMBs, ISVs, and SaaS businesses.

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Serrala Suite logo

Serrala – automate finance without limits!

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Serrala is a global finance automation company that creates more secure payment capabilities for organizations worldwide. We offer comprehensive order to cash, procure to pay, payments, treasury, and cash management solutions for multi-ERP and SAP-embedded deployments.

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Payfacile logo

One-time and recurring payments solution for businesses

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Payfacile is a cloud-based payment solution designed to help businesses across multiple industry verticals automate billing processes for accepting payments online. It lets users create payment links, which can be sent via email to clients in order to accept payments via IBAN or credit card.

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Airwallex logo

Payment and financial management solution

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Airwallex provides global businesses with an all-in-one account to help businesses grow and operate globally, offering access to domestic and foreign currency accounts, high speed international transfers, global bill pay, online payment links and plugins, multi-currency cards, expense management, software integrations and APIs to programmatically manage finances.

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Axonaut logo

All-in-one business management for small teams.

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Create, send, and track professional invoices and quotes. Automate billing cycles and payment reminders to keep your cash flow healthy.

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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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Gofrugal logo

ERP solutions for retail, restaurants & distribution

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GOFRUGAL offers retail, restaurant, distribution and Enterprise businesses a range of ERP and Point of Sale (POS) solutions suitable for multiple trades, with a cloud-based option boasting multi-store management, inventory control, purchase automation, BI reporting & data syncing for offline access

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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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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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