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Billing and Invoicing Software with API (2026) - Page 22

Last updated: March 2026

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576 software options

ReveniQ logo
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Revenue intelligence solution for SaaS businesses

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ReveniQ is a cloud-based solution that provides revenue analytics and financial management solutions tailored for SaaS businesses. Integrating invoicing, billing, and customer data into a unified platform helps users monitor churn risks, manage subscriptions, and generate insightful financial reports.

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Ayami logo
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Cloud-based procure to pay software for businesses

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Ayami is a cloud-based procure to pay platform that helps businesses optimize, digitize and control purchasing processes, calculate carbon footprint, and generate invoice and carbon balance sheet (BEGES).

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Method Proposals logo
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Billing and invoicing software

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Method Proposals is a proposal automation solution that integrates directly with QuickBooks accounting software. The platform enables businesses to create customizable proposals with built-in e-signatures, allowing clients to approve, sign, and pay all in one place through secure customer portals. Method Proposals features two-way synchronization with QuickBooks, eliminating duplicate data entry when converting proposals to invoices.

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PineBill logo
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Invoicing platform for small businesses

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PineBill is an all-in-one invoicing platform designed for small businesses, freelancers, and contractors. The software enables users to create professional invoices with customizable templates, multi-currency support, and automatic numbering while providing secure document storage with enterprise-grade encryption. PineBill offers comprehensive analytics to track sales trends and customer lifetime value, helping businesses manage finances.

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brainX logo
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Revenue CRM for SaaS billing, forecasting & payments

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CRM-based SaaS platform for automated billing, real-time forecasting, and cashflow control. Includes 25 plug-and-play automations, REST API, Mollie, Jira & DATEV integrations, and secure role-based access.

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Nightingale logo
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Clud-based care management tool for healthcare providers.

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Nightingale is a cloud-based care management system designed for healthcare providers specializing in aged care, NDIS, allied health, and support coordination services. The platform offers various functionalities including client management, funding management, rostering, staff management, custom forms, award interpretation, and data analytics. It features sophisticated funding management capabilities that support various programs including NDIS, HCP, CHSP, DVA, and private brokerage services.

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Alevate Bill Pay logo
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Software for managing bill presentation & payment processing

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Alevate Bill Pay is a cloud-based software that allows businesses to manage bill presentation and payment operations. Billers can easily collect payments from customers, whether the payment is a one-time transaction or a recurring payment.

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dsosuite logo
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Solution for the acquisition and management of receivables

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iQera guides companies through the acquisition and management of receivables with its SaaS solution known as dsosuite. It helps companies control risk and transform finance, credit, and customer relationship functions with an empathetic approach to improving performance.

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Gem Logic logo
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Gem Logic, jewelery business software

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Gem Logic offers cloud-based software for jewelers, creators, gem traders, goldsmiths, and workshops. It provides comprehensive management of stock, orders, invoicing, POS, repairs, certificates, CRM, and more.

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Tempolia logo
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Billing and invoicing software

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Tempolia is a billing and invoicing software specialized in time management for accounting firms, law firms, and design offices.

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KeepMyAccount logo
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Cloud-based billing and invoicing solution

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KeepMyAccount is a cloud-based application that helps users manage their business finances and inventory. Whether they run a retail store, a restaurant, a beauty salon, a freelance business, or any other type of business, they can use KeepMyAccount to create invoices, track payments, monitor stock levels, and more.

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BillingPlatform logo
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Accelerating Ideas Into Revenue

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BillingPlatform is a cloud-based solution that enables enterprises to easily automate their quote-to-cash processes. It is the only solution on the market that can support any business requirement – any product, any service, any business model – all on a single platform.

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Silvasoft logo
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Online booking and invoicing solution

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Silvasoft is an accounting solution, designed to help businesses in the Netherlands and Belgium manage bookkeeping and invoicing. It also offers support for business management, with tools such as time registration, inventory tracking, personnel management, project management, agenda & a CRM tool.

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Isabel 6 logo
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Transaction management solution for businesses

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Isabel 6 is a cloud-based payments management solution designed to help organizations manage transactions across multiple business accounts. Key features include data sharing, user group management, cash flow tracking, role-based permissions, audit trails, email notifications & reporting.

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Value Payment Systems logo
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Billing and payment processing solution for organizations

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Value Payment Systems is a cloud-based payment management solution, which helps businesses process electronic payments through various modes including website, mobile, POS, and voice. Key features include transaction tracking, mobile-optimized payment gateways, online tax payment, and reporting.

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Fatura Simples logo
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Integrated platform for handling recurring invoices

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Fatura Simples is a recurring invoice management tool that makes it possible for companies to automate operations and track invoicing stages such as issuance or bank reconciliation. Integration with ERP and CRM systems is possible via API.

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QuickInvoicer logo
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Billing and Invoice Management Software

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QuickInvoicer offers a suite of features specially designed to manage the expenses of the business and control them simultaneously. It also comes with GST-enabled software that enables businesses to keep track of their GST.

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Osome logo
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Expert accountants + simple software = financial admin, done

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Expert accountants + simple software = financial admin, done. Osome is an online bookkeeping and accounting firm that sorts all the boring admin for your business so you can focus on growing: We cover all industries, with specialisation in E-commerce business.

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Flexbilling logo
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Salesforce Addon Flexbilling with CPQ and billing functions

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Flex billing is a Salesforce addon that provides users with CPQ and billing functions. The software solution is 100% based on Salesforce and easy to setup.

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TYASuite E-Invoicing logo
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AI-powered ZeroTouch™ Invoice Automation - TYASuite.

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Go Live in 3 Days. Save 90% Costs. Stay 99% Accurate, Seamless ERP Integration— with TYASuite AI-Powered ZeroTouch™ Invoice Automation.

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XRechnung logo
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Electronic invoicing solution

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Faktoora is an electronic invoicing platform in compliance with the European specification EN16931 and German specifications XRechnung and ZUGFeRD.

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PracticePro 365 logo
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The Best All-in-One Practice Management Software

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PracticePro 365 is a unitized cloud practice management software with nine core features that run your firm, an all-in-one platform topped off with real-time visual dashboards.

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Handle logo
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Handle simplifies construction payment compliance.

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Handle is used every day by the biggest names in construction to protect, secure, and collect their payments.

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Transaction Cloud logo
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Tax Compliance, Subscription, and Payment Platform

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Transaction Cloud is a platform for payments, sales tax / VAT /GST compliance (automated collection, filing), subscription management, recurring billing, and fraud protection for SaaS.

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Buckaroo logo
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Subscription management solution

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Buckaroo Subscription allows users to process subscription payments easily and securely. The collection, invoicing and follow-up of subscription payments can be fully automated.

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