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Top Rated Billing and Invoicing Software with Api - Page 3

Last updated: June 2026

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611 software options

AccountSight logo

Time tracking & billing software for professional services

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AccountSight is a time tracking & billing software suite for professional services companies with features for forecasting, planning, scheduling, & more

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Uptick logo

Uptick is the #1 fire asset maintenance software solution

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Built specifically for the fire protection and security industry, Uptick comes equipped with built-in legislative standards, making fire asset maintenance easy.

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Mercury logo

Banking for startups and growing companies

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Mercury provides billing and invoicing tools to create invoices, accept payments, and track what’s paid or overdue, with accounting integrations to keep records accurate.

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AMCS Utility Billing logo

Effortless billing: Track customers, meters, invoices & more

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Utility billing platform for billing and invoice creation for utilities companies across the world. we have over 200 utilities from small to very large. join us

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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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PracticePanther Legal Software logo

Cloud-based law practice management platform for law firms.

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PracticePanther is the highest-rated, easiest-to-use, all-in-one legal billing and invoicing software on the market. Trusted by tens of thousands of solo, small, and mid-sized law firms across 170+ countries, to automate and streamline firm operations on any device, anywhere.

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BCS logo

Plan. Implement. Evaluate.

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From expense entries, in-kind services, recurring flat rates, items, travel expenses, or external services, BCS automatically adds all billable and accepted services to your invoices for accurate and efficient invoicing. E-invoice types and an email dispatch enable digital-only invoicing.

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Hiveage logo

Online invoicing & billing software for small businesses

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Hiveage helps small businesses and freelancers to send invoices & estimates, accept online payments, track time & expenses, and charge subscriptions. Manage multiple businesses and teams with different levels of access with a single account.

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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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Ruddr logo

The Modern Professional Services Platform

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Ruddr is the modern professional services platform for small-to-midsize teams (5-1,000 users). Measure key data related to clients, projects, budgets, tasks, time, expenses, and invoices. Reports and KPIs provide insight into metrics such as realization rate, utilization rate, and services margin.

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Datamolino logo

Data capture software for invoices, bills and receipts

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Save time on purchase bill processing! Datamolino automatically captures data from your invoices, bills & receipts and sends it straight to Xero or QuickBooks.

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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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Clientary logo

Everything you need for your professional service business.

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Full-suite app for your team to manage projects, payments, clients and more.

Stop wrestling with one-off doc files, templates, and disconnected apps. Clientary helps you streamline client workflows to bring it all under one roof.

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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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BILL Spend & Expense logo

The all-in-one expense management solution.

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BILL Spend & Expense (formerly Divvy) is the all-in-one expense management solution.

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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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Invoice Fly logo

Create & send professional invoices and get paid faster.

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Create, customize, and send invoices with ease. Track payments, manage billing, and simplify your finances with Invoice Fly.

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Muni-Link logo

Cloud-based utility billing software

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Muni-Link is a cloud-based utility billing solution which includes a customer portal, e-billing, customer notifications, backflow management, online payment processing, built-in CASS certification, & more. No upfront hardware or software to buy!

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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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Encuadrado logo

Payments & bookings for self-employed service providers

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Encuadrado is a software suite for service providers that book appointments. It offers scheduling services, automated billing, and electronic invoicing for independent professionals. It also provides the opportunity to be part of a community where users can professionalize, learn from peers, and grow businesses.

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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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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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Request Finance logo

Crypto transaction platform

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Request Finance is an all-in-one finance solution for Web3 businesses - Crypto invoicing & bill payment, Crypto payroll & expenses.

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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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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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