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Billing and Invoicing Software with API (2026) - Page 5

Last updated: March 2026

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576 software options

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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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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zistemo logo

Manage Project Track Time More Clarity

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Zistemo is the smartest invoicing software designed for freelancers and small businesses. Forget excel or word templates. Join us today for free to start sending professional looking invoices. Track time and rule expenses like a pro. Our online invoice software makes billing hassle-free.

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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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onPhase logo

Accounts payable and document automation platform

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onPhase helps businesses automate back-office accounting processes, customer-facing dashboards and portals. The solution provides tools required to organize and automate all accounting processes.

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Kashoo logo

Online accounting software for small businesses

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Kashoo is simple cloud accounting for small business owners who want the control and simplicity of doing their own books. It provides small business owners with the ability to run their business the way they want to, with tools for invoice management, payment processing, reporting, and more.

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DealHub logo
Category Leaders

Agentic Quote-to-Revenue platform for enterprises

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DealHub is the unified Agentic Quote-to-Revenue (Q2R) platform built for complex, modern GTM motions. The platform empowers high-growth SaaS and forward-thinking enterprises to automate and accelerate their entire revenue lifecycle.

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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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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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ChargeOver logo

Subscription billing software for SMBs

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ChargeOver automates billing, invoicing, collecting payments, dunning, & more for recurring billing based businesses. Also supports one-time charges.

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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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Litify logo

Cloud-based legal practice management tool for law firms.

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Litify provides an integrated platform designed to improve business performance for law firms and in-house legal teams. The platform incorporates a range of features tailored to enhance legal operations, including matter and intake management, document generation, timekeeping and billing, corporate e-billing, and a "legal front door" for streamlined workflows. Additional capabilities such as real-time analytics and mobile accessibility further support organizations in optimizing processes.

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Zenskar logo
Category Leaders

Automation software for subscription & usage-based billing

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Ditch clunky tools and automate billing operations with Zenskar. Configure any usage-based/subscription pricing models with our no-code builder and let Zenskar handle the rest. Seamlessly aggregate usage, generate/send invoices, create journal entries, and sync with ERP/GL in real-time – no coding.

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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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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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Dolibarr logo

Solutions for On-line businesses

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Dolibarr is a business software suite to manage your activity (contacts, invoices, orders, products, stocks, agenda, emailings, and more...).
It's an opensource and free software designed for companies, foundations and freelances.
Available as a Cloud solution on On premise.

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Actionstep Legal Accounting logo

Cloud-based accounting and billing for law firms

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Soluno is a cloud-based accounting and billing software designed to accelerate law firms. With a full, easy-to-use suite of time/expense entry, billing, accounting, trust, and reporting features, law firms get everything they need to master their business.

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BCS logo

Projektron BCS - Save costs. Meet deadlines. Achieve goals.

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From expense entries, in-kind services, recurring flat rates, items, travel expenses, or external services, Projektron 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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WinTeam logo

ERP software for janitorial and security contractors

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WinTeam is a cloud-based enterprise resource planning (ERP) software designed to help janitorial and security service contractors manage their workforce and automate financial operations. Features include performance tracking, job costing, timekeeping, benefits planning, analytics and reporting.

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Heartland Payments+ logo

Payment processing software for hospitality sector

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Heartland Payment Processing is a cloud-based solution that helps businesses in hospitality, medical, government and other sectors accept in-person and online payments via flexible methods, including credit or debit,EMV chip cards, digital wallets and more.

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Wethos logo
Category Leaders

All in one software made for freelancers, by freelancers.

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On Wethos, you can take your proposal creation time from hours to minutes, create and send invoices to clients, and get paid - without ever having to switch tabs. Leverage Wethos' template library to scope your work and get paid.

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WorkflowMax logo

Xero owned financial project management software for SMBs

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Control every aspect of your invoice, from how it looks to what info gets displayed. With WorkflowMax, you can manage any job from leads through to invoicing.

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Gaviti logo

A/R automation with zero-fee ACH & seamless customer payment

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Gaviti streamlines the entire invoice-to-cash cycle with AI-powered collections, cash application, credit risk, and disputes. As the only provider with a B2B payment portal offering zero-fee ACH and built-in customer communication, Gaviti accelerates payments and reduces DSO for B2B finance teams.

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Milient logo

Perfect Project Flow

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Milient is a cloud-based project management solution that helps users with time recording, resource planning, quality assurance, and invoicing processes from a unified platform.

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Actionstep logo

Cloud-based legal practice management tool for law firms.

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Actionstep has an exceptionally powerful billing and invoicing system which is unmatched by competitors.

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