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About

Whatever your subscription business, rely on Billsby for easy and accurate recurring billing. The most powerful, customizable and easy to integrate subscription billing software used by hundreds of companies worldwide to simplify revenue operations. Every Billsby account supports unlimited products, plans and cycles - making it really easy to support even the most complex plans. Once customers sign-up and as their subscription changes, use Zapier to complete follow up tasks across all of the other tools and services you use to run your business. Our drop-in checkout helps customers to sign up for your product quickly and easily, with low development effort. Customers can manage their own account with our drop-in account management tools - reducing service costs.

About

Paygent is the monetization and cost-tracking infrastructure platform built for AI-native businesses. Unlike legacy billing tools that only track revenue, Paygent gives AI companies real-time visibility into margins, infrastructure costs, and profitability per customer and per agent workflow. AI companies today operate across fragmented LLM providers, APIs, and cloud infrastructure, making it difficult to understand true unit economics. Teams often scale usage without realizing margins are shrinking. Paygent solves this by unifying real-time AI infrastructure cost attribution and automated billing into one platform. It tracks every LLM call, API request, and compute event tied to agent workflows, enabling customer-level gross profit visibility, automated billing, predictive pricing simulation, and cost alerts to prevent runaway agent loops. Built for AI startups, voice AI platforms, and autonomous agent teams, Paygent offers native SDKs for Node.js, Python, and Go.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Businesses that need to process recurring payments and subscriptions

Audience

AI startups, voice AI companies, autonomous agent builders, LLM application developers, CTOs and AI engineers building agent-based products

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$35 per month
Free Version
Free Trial

Pricing

$0/month
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Billsby
Founded: 2016
United Kingdom
www.billsby.com

Company Information

Paygent
Founded: 2026
India
www.withpaygent.com

Alternatives

Alternatives

Categories

Categories

Recurring Billing Features

Customer Portal
Deferred Billing
Discount Management
Dunning Management
Invoice History
Multi-Currency
Multi-Period Recurring Billing
Payment Processing
Recurring Donations
Subscription Billing

Subscription Management Features

Cancellation Management
Discount / Coupon Management
Dunning Management
Enrollment Management
Product Catalog
Recurring Billing
Revenue Recognition
Revenue Recovery Tools
Self Service Portal
Subscription Plan Management
Tax Management
Trial Management
Usage Tracking/Analytics

Integrations

Easyflow
KonnectzIT
LiveKit
Peaka
Stackreaction
StarfishETL
Stripe
Textellent
Truto
Vapi AI
Zapier

Integrations

Easyflow
KonnectzIT
LiveKit
Peaka
Stackreaction
StarfishETL
Stripe
Textellent
Truto
Vapi AI
Zapier
Claim Billsby and update features and information
Claim Billsby and update features and information
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Claim Paygent and update features and information