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Top Rated Billing and Invoicing Software with Api - Page 6

Last updated: June 2026

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612 software options

Daxko Operations logo

Membership management software for non-profit organizations

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Complete operations software for member-based nonprofits - integrating programs, billing, and check-ins in one secure system.

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Candis logo

Automated invoice management for SMBs and finance teams

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Automated invoice management for finance teams and suited for small and medium-sized businesses. Teams can upload, approve, and, export invoices with just a few clicks.

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ApprovalMax logo

Robust financial controls made easy

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ApprovalMax is an award-winning B2B software platform used by businesses around the world to build robust financial controls. It streamlines the approval process by allowing users to create automated workflows to approve bills and invoices.

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Opsyte logo

The hospitality tool

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Opsyte is an online portal dedictated to optimising back of house tasks in any hospitality setting.

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PayEm logo

Global spend & procurement platform

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Go beyond the tired billing & invoicing procedures with PayEm. PayEm's platform simplifies bill payments, whether done by credit card or ACH. The platform allows for digital uploads of vendor invoices, automatic payment scheduling & customized approval flows, using streamlined NetSuite integration.

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Teamogy logo

All-in-one cloud platform for projects, finances & teams

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Teamogy is a secure all-in-one cloud platform for managing projects, finances, documents and teams. Includes budgeting, time tracking, invoicing, reporting, integrations and automation. Accessible anytime, scalable for startups to enterprises.

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HAL ERP logo

Making ERPs formless & natural

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HBS is a unique business system designed to help businesses manage and automate their key operations - Procurement, Sales, Inventory, Finance, HR, Manufacturing, Production, Quality control, and Compliance.
In addition, the simplified reporting tool makes it easy to pull out infinite custom reports

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AccountGroove logo

Smart proposal & billing software

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AccountGroove is a smart proposal and billing software. It helps accounting practices win clients, automate billing, and get paid faster all in one platform. AccountGroove streamlines engagement letters, invoices, and payments while integrating with popular accounting tools.

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LogiSense Billing logo

Leading the usage-based billing economy.

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We believe that people should pay only for the services they want and use. LogiSense provides of real-time usage and subscription-based billing solutions. We help businesses configure modern, sophisticated billing scenarios, allowing XaaS, telecom, enterprise and IoT companies to diversify their off

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Open logo

Banking and financial operations management platform

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Open is a cloud-based software designed to help startups and small to midsize enterprises manage payments, virtual accounts, cash, invoices, taxes, expenses, and more via a unified portal. The platform includes payroll management functionality, which enables businesses to track employees’ attendance and leaves, create payslips, and analyze reports for reference.

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Epay Manager logo

Online billing system with automated invoice creation

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Epay Manager Powered by OTR Solutions is a web-based back-office automation and carrier payments and billing platform designed specifically for the transportation industry to help freight brokers reduce costs and increase efficiencies of their back-office operations.

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VOGSY logo

Multiple countries, multiple currencies, one resource pool.

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Enterprise-grade project management, resource planning, timesheets, invoicing & project accounting. Fair total cost of ownership & fast time to value.

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Stax Bill logo

Subscription management and recurring billing software

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Fusebill automates customer billing with customizable invoices, a built-in payment gateway, and support for taxation, subscription management, accurate revenue recognition and more. Easily tackle your complex billing needs – from simple one-time transactions, usage-based pricing and pro-ration.

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Rebillia Platform logo

Subscription management software

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A fully customizable, flexible, and scalable enterprise-level recurring orders and subscription billing engine suited for any business.

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InGeek logo

Inventory management & procurement process automation tool

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Designed for manufacturers, contracting firms, hospitals, and suppliers, InGeek is a SaaS inventory management & procurement process automation solution that helps administrators monitor stock counts, create vendor lists, and prevent understocking of products on a centralized platform.

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Routable logo

AP automation software providing time-saving tools

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Routable is an accounts payable automation software that provides time-saving tools for data entry, bill approvals, and reconciliation. It offers invoice capture with AI-powered OCR, flexible payment methods, real-time sync with accounting systems, and automated controls for compliance.

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Ordway logo

Billing & invoicing automation platform

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Ordway is a billing and invoicing automation platform that helps small to midsize businesses collect payments, send invoices, and manage revenue. The solution comes with features such as usage and volume-based billing, recurring subscription management, dunning workflows, custom forms, & more.

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Total Synergy logo

Business and project management software for AEC businesses

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Synergy is the cloud-based software for efficient architecture, engineering, and construction design (AEC) business and project management. Enhance profitability by managing operations, jobs, and cash flow. Achieve efficiency, control, and profitability with Synergy.

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FACT ERP.NG logo

ERP solution for integrating business processes

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FACT ERP.NG is Enterprise Resource Planning (ERP) software that creates a unified system for the business processes of Small and Medium Enterprises (SMEs). Accounting, payroll, inventory, CRM, manufacturing, and more are combined to offer a flexible, configurable, mobile solution.

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DigitalRoute logo

Mediation and usage data processing software

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DigitalRoute is a data loss prevention tool that helps businesses connect the solution with any system in the IT infrastructure to collect, process, enrich, and distribute usage data to billing and configure, price, and quote (CPQ) applications.

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ZipBooks logo

Accounting and online invoicing software

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ZipBooks is a cloud-based accounting software that caters to the bookkeeping and accounting needs of small to medium-sized businesses and bookkeeping firms. The solution offers core accounting, financial reporting, online invoicing, expense tracking, credit card processing, and more.

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Kill Bill logo

Open Source Subscription Billing and Payment Platform

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Manage your billing and invoicing without SaaS vendor lock-in. The Kill Bill billing system and payments platform is feature-rich out-of-the-box and highly customizable. It supports complex billing schemes, including one-offs, recurring, and usage-based plans.

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Corcentric logo

Proven results. Built together.

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Corcentric’s billing and invoicing solutions streamline the entire process—automating invoice creation, delivery, and tracking to reduce errors, accelerate payments, and improve customer experience.

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Factomos logo

Factomos, la facturation en ligne fluide et connectée

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French Invoice SaaS

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ScaleXP logo

Smart Finance Automation

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ScaleXP automates revenue recognition, prepayments, KPIs, dashboards and presentations saving you days of work with spreadsheets and enabling you to have valuable, industry specific metrics and professional looking presentations, customised to your needs and colours, available in real time.

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