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Billing and Invoicing Software with API (2026) - Page 10

Last updated: April 2026

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600 software options

LeanLaw logo

Legal billing software for small to mid-sized law firms.

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Customize Your Client's Invoice
Easily edit and control the level of detail, without assistance, of what your clients see on their legal invoices. When they understand their bills, they might just pay you faster. See unpaid bills.
Add LEDES activity & litigation codes to meet your clients’ needs.

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Clio logo

Cloud-based legal practice management tool for law firms.

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Legal billing software that gives you sleek, customizable invoices. Generating a bill and receiving payment with Clio is quick and easy—and can be done online.

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PayPal logo

Payment processing, fraud protection and risk management

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PayPal provides an end-to-end suite of tools that can integrate with a business's existing systems and service providers. Its network of shoppers and businesses provides AI-driven data insights to help businesses reach new customers and drive results.

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Cacheflow logo

Deal-closing platform that automates quote to close

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Cacheflow is a cloud-based deal-closing solution that helps streamline the quote-to-close process. Users can create proposals including usage-based pricing.

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LawnPro logo

Lawn care software for managing administrative operations

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LawnPro is a cloud-based lawn care software that helps businesses manage administrative operations and communicate with customers, crew members, and employees via text messages. It lets users handle multiple properties, print invoices, and receive online payments from customers via credit cards.

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CosmoLex logo

Web-based legal practice management & accounting software

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CosmoLex legal timekeeping & billing software catches every billable item: meetings, tasks, even time on email & research. Get bills out in just one click.

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Square Point of Sale logo

iPad & Android point of sale (POS) system

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Square Point of Sale is a POS solution for Android and iOS devices which includes tools for managing payments, digital receipts, inventory, reports, and more.

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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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WORKetc logo

Business management system for SMBs

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WORKetc lets you automatically capture & invoice all company-wide activities. Generate timesheets & invoices, track payments, manage tax & discounts, and more

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Avaza logo

All-in-one, client-focused project management for teams.

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Access multi-currency expense tracking, budgeting and billing all in one app with Avaza. Available in the cloud, from any device.

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Productive logo

Project lifecycle management for agencies and consultancies

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Productive is an end-to-end agency management tool that gives you a birds-eye view of your agency business.

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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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Plannit logo

Job management & scheduling solution

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The only FREE home services app designed to serve Pros AND customers, by bringing job requests, quotes, billing and payments online, all organized in a single place.

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Invoicera logo

Invoicing Simplified

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Streamline invoicing with Invoicera: Create branded invoices, track expenses, automate billing & more. Simplify finances, maximize productivity!

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Chargezoom logo

Pivot & scale with powerful billing & payments for everyone

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Use your existing payment gateway with Chargezoom. Start syncing payment transactions and invoices directly into your accounting software in minutes.

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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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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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Teampay logo

Request, approve, and track company spending in real-time.

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Teampay’s spend management platform gives finance teams control and automates the purchasing, reconciliation, and reporting process.

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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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OnPrintShop logo

#1 AI-Powered Web-to-Print Software

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#1 AI-powered Web-to-Print software to boost print sales, automate processes, and streamline print business operations.

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Saleoid logo

Best CRM Software for leads, sales, marketing & billing

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Saleoid is the Best CRM Software for startups, agencies & SMBs an all-in-one platform to generate leads, manage sales, run marketing, and handle billing in one connected system. Starts at $5/month (2-year plan).

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SoftCo AP Automation logo

Cloud-based AP automation solution

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SoftCo AP is a cloud-based AP Automation solution that reduces the cost of processing vendor invoices by 80%. It automates vendor invoicing processes including capture, registration, coding, approval, query, reporting, & ERP payment. SoftCo works with organizations who process 50k+ invoices p.a.

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Zoho Workerly logo

Temporary staffing solution for agencies

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Zoho Workerly is a platform built for temporary staffing agencies to help streamline job scheduling processes. Recruiters can manage client and temporary workers databases, schedule jobs based on client requirements, generate timesheets, and send out invoices from within one interface.

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Holded logo

ERP, Accounting, Invoicing & more for freelancers and SMBs.

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It's a cloud-based invoicing software for freelancers, SMBs and accountant offices to control all aspects of their business and optimise their management.

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Clear Books logo

Online accounting software for small businesses

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Clear Books Accounting Software is an online accounting system for small businesses. Clear Books has been developed with the aim of guiding the user through day to day accounting and bookkeeping tasks and providing access to client accounts anytime and from anywhere with an Internet connection.

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