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Billing and Invoicing Software with API (2026) - Page 4

Last updated: March 2026

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576 software options

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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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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Invoice Ninja logo

More than Invoicing. Powerful Apps to Run Your Business!

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Create. Send. Get Paid.

Invoice Ninja is the leading small-business platform to invoice, accept payments, track expenses & time tasks. Designed for freelancers and small to medium size businesses, Invoice Ninja is a suite of apps to help you get paid.

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Invoicely logo

Free Online Invoice Software for Small Businesses

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invoiceky enables freelancers and small businesses to create, send and manage an unlimited number of simple and professional looking invoices.

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authorize.net logo

Payment processing across multiple channels

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authorize.net supports payment processing by helping businesses accept credit card and eCheck payments online, in person, via mobile devices, and more. The product offers a range of features, including online payments, mobile point of sale, virtual point of sale, phone payments, eCheck payments, digital invoicing, and fraud protection. It provides account updater and recurring payments capabilities to help businesses manage payments.

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TPS Cloud Axis logo

Practice management software designed for accountants

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TPS Cloud Axis offers a full suite of practice management functions from time and billing, through WIP and AR as well as complete workflow and employee scheduling.

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Invoiced logo

Accounts receivable automation software

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Get paid faster, automate collections, & improve the customer payment experience with a trusted award-winning billing and A/R solution helping businesses like JumpCrew to Sprint & Uber. Invoiced is a cloud-based software making online payments easy. Get started with a free customized demo today!

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SimpleVMS logo

Cloud-based software for managng vendors

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SimpleVMS is a cloud-based vendor management software specifically created to find the best candidates and reduce cost as well as administrative burdens.

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Stitch Labs logo

Inventory Management Built for Modern High-Growth Brands

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Stitch is an inventory and order management platform built for modern, high-growth brands.

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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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Maxio logo

Maxio is a financial operations platform for B2B SaaS compan

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SaaSOptics’ billing and invoicing feature allows B2B SaaS companies to manage and process sales orders quickly and accurately.

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Noda logo

Software for secure online payments and transactions

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Noda is a comprehensive online payment platform that streamlines transactions for businesses and individuals. The platform harnesses the power of open banking and APIs to elevate the customer experience, offering a range of features such as fast and secure bank transfers, easy card payment processing, and a streamlined checkout experience. Noda prioritizes efficiency, security, and customer delight.

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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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Gestionale sul Web logo

Enterprise resource planning and accounting software

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Gestionale sul Web is an enterprise resource planning software that helps businesses of all sizes manage production, billing, orders, suppliers, and sales. Key features include automated supplier orders, order margin analysis, price lists management, payment processing, offers management, and financial flow tracking.

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TallyPrime logo

Solution for managing accounting and financial operations

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TallyPrime is an on-premise business management solution that helps small to midsize businesses manage accounting, inventory, compliance, sales, purchase, manufacturing, job costing, payroll, branch management and more.

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PayJunction logo

Payment processing for mid-large scale businesses

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PayJunction is a payment gateway & merchant service which provides mid to large scale enterprises with the tools to process all payment types in store or online

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Accelo logo

Transform the way you manage client work

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Easily bill clients and create invoices directly from projects, service issues, contracts, and timesheets. Accelo features automatic time capturing to record the time you spent on projects and tasks, eliminating the need to worry about untracked time, so you know exactly how much to bill clients.

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FreeAgent logo

FreeAgent has been voted the UK's #1 accounting software.

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New customer offer: 50% off for the first 6 months. Fully customisable HMRC compliant invoices, automatic late payment reminders, online payments.

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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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Amberlo logo

Law Practice Management software for law firms of all sizes.

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Billing & Invoicing Built for Law Firms. Easily track time, apply hourly rates, fixed fees, or matter budgets, and generate professional invoices in just a few clicks. Create estimates, convert them into invoices, batch-approve bills, and customise invoice templates with your firm’s branding.

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Emburse Expense Enterprise logo

Cloud-based solution for expense management.

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Chrome River Expense is a cloud-based export reporting solution, which helps small to large businesses in finance, technology, healthcare, and other sectors create, submit, or approve expenses on any device. It allows users to control costs with automated, real-time spend policy compliance monitoring and approval routing. Chrome River Expense offers various features such as receipt management, OCR (optical character recognition) technology, budgeting, forecasting, and reporting.

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Bling logo

Business management software that automates processes

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Bling is a management system responsible for automating business routines and processes. The program makes it possible to issue invoices and receipts, control products and organize stock, register customers and suppliers, manage sales and monitor commissions.

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Indy logo

Own it.

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Indy is an all-in-one admin solution that enables a seamless workflow from your first proposal to a client to the final invoice payment and everything in between. Indy is designed for freelancers, entrepreneurs, and business owners who want to level up their productivity and grow their businesses.

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Fortis logo

Embedded payments and invoicing for B2B workflows

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Fortis is a payment processing and invoicing solution that helps businesses receive payments, monitor transactions, capture eSignatures, send payment requests, and more on a centralized platform. It enables team members to create one-time and recurring invoices in compliance with PCI-DSS guidelines.

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actiTIME logo

Manage time and projects with minimal effort

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Set up billing rates, track worked hours and create 100% accurate PDF invoices for your clients. Control customers' performance with multiple reports.

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