Table of Content
Table of Content
Best Open-Source Tools for Subscription Billing Management 2025
Best Open-Source Tools for Subscription Billing Management 2025
Best Open-Source Tools for Subscription Billing Management 2025
Best Open-Source Tools for Subscription Billing Management 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
• 7 min read
• 7 min read
• 7 min read
Bhavyasri Guruvu
Bhavyasri Guruvu
Content Writer Intern, Flexprice
Content Writer Intern, Flexprice
Content Writer Intern, Flexprice
If you’ve ever tried setting up subscription billing, you know it’s never as simple as it sounds. Managing invoices, tracking usage, and handling credits can quickly turn into chaos.
That’s why more companies are turning to open-source subscription billing management tools. They give you control, transparency, and flexibility without vendor lock-ins or hidden fees.
In 2025, open-source billing isn’t just about saving costs. It’s how modern SaaS, API, and AI businesses build scalable, usage-based systems.
This guide covers the top tools that simplify subscription billing while keeping your pricing engine completely in your hands.
TL;DR
Open-source billing tools help companies manage subscriptions, usage-based pricing, and credits with more flexibility and transparency.
Flexprice: Best for AI, API, and SaaS companies needing real-time metering, hybrid pricing, and developer control.
Kill Bill: Suited for legacy integrations.
Lago: Ideal for mid-sized SaaS teams with simple use cases.
UniBee: Great for startups needing quick, simple subscription setups.
jBilling: Supports seamless integration of CRMs and ERPs
OpenMeter: Designed for lightweight event metering and data collection.
Axelor: Fits ERP-based organizations wanting billing within their management system.
Open-source tools provide cost savings, customization freedom, and no vendor lock-in offering the most modern, developer-friendly balance.
Top 7 Open-Source Billing Platforms
1. Flexprice:
Flexprice is an open-source tool for subscription management, metering, and billing, purpose-built for AI and SaaS companies. It eliminates the need to build complex billing systems from scratch by managing everything from usage tracking to feature access and billing logic in one place.
As a developer-first subscription management tool, Flexprice lets you implement real-time metering, hybrid pricing, and feature-based entitlements with complete flexibility.
It’s built to help AI, SaaS, and API businesses experiment, launch, and scale their pricing models without losing control over their infrastructure or data.
Key Features
Real-Time Event Ingestion and Aggregation
Flexprice captures and aggregates usage data in real-time. Every API call, token generation, or model request is recorded instantly so you always know what your customers are using.
The stream-based architecture ensures accuracy without relying on delayed batch jobs or manual reconciliation.
Hybrid Pricing Engine
Flexprice supports true hybrid monetization. You can combine fixed fees, usage-based charges, credit consumption, and overage pricing in a single structure.
Each component is configurable and linked directly to your usage data, giving you the flexibility to manage complex pricing without managing multiple systems.
Credit Wallets with Auto Top-Up and Expiration Rules
Every customer has a dedicated credit wallet that works like a prepaid balance. Credits can auto-recharge when they fall below a threshold, expire after a defined period, and support multiple currencies or credit types.
The wallet layer is designed for transparency and high-speed balance tracking.
Feature Gating and Entitlements
Flexprice lets you define entitlements at both plan and user levels. You can control access to APIs, features, or quotas directly from your billing setup instead of creating separate product versions.
This keeps your plans organized and simplifies upgrades or custom feature access.
Self-Hosted or Managed Deployment Options
Flexprice is open source and can be deployed on your own infrastructure for complete data control. You can also choose the managed cloud version if you want to skip maintenance and scaling concerns.
Self-hosting gives you visibility into your data, logs, and configuration while maintaining full flexibility over your billing logic.
Built for AI, API, and SaaS Billing
Flexprice is designed for companies that need usage-aware billing workflows. Whether you price per API call, per token, per user, or through credits, it gives you a single system to meter, price, and bill your usage in real time. It is built for developers who want control and extensibility without engineering overhead.
If you’ve ever tried setting up subscription billing, you know it’s never as simple as it sounds. Managing invoices, tracking usage, and handling credits can quickly turn into chaos.
That’s why more companies are turning to open-source subscription billing management tools. They give you control, transparency, and flexibility without vendor lock-ins or hidden fees.
In 2025, open-source billing isn’t just about saving costs. It’s how modern SaaS, API, and AI businesses build scalable, usage-based systems.
This guide covers the top tools that simplify subscription billing while keeping your pricing engine completely in your hands.
TL;DR
Open-source billing tools help companies manage subscriptions, usage-based pricing, and credits with more flexibility and transparency.
Flexprice: Best for AI, API, and SaaS companies needing real-time metering, hybrid pricing, and developer control.
Kill Bill: Suited for legacy integrations.
Lago: Ideal for mid-sized SaaS teams with simple use cases.
UniBee: Great for startups needing quick, simple subscription setups.
jBilling: Supports seamless integration of CRMs and ERPs
OpenMeter: Designed for lightweight event metering and data collection.
Axelor: Fits ERP-based organizations wanting billing within their management system.
Open-source tools provide cost savings, customization freedom, and no vendor lock-in offering the most modern, developer-friendly balance.
Top 7 Open-Source Billing Platforms
1. Flexprice:
Flexprice is an open-source tool for subscription management, metering, and billing, purpose-built for AI and SaaS companies. It eliminates the need to build complex billing systems from scratch by managing everything from usage tracking to feature access and billing logic in one place.
As a developer-first subscription management tool, Flexprice lets you implement real-time metering, hybrid pricing, and feature-based entitlements with complete flexibility.
It’s built to help AI, SaaS, and API businesses experiment, launch, and scale their pricing models without losing control over their infrastructure or data.
Key Features
Real-Time Event Ingestion and Aggregation
Flexprice captures and aggregates usage data in real-time. Every API call, token generation, or model request is recorded instantly so you always know what your customers are using.
The stream-based architecture ensures accuracy without relying on delayed batch jobs or manual reconciliation.
Hybrid Pricing Engine
Flexprice supports true hybrid monetization. You can combine fixed fees, usage-based charges, credit consumption, and overage pricing in a single structure.
Each component is configurable and linked directly to your usage data, giving you the flexibility to manage complex pricing without managing multiple systems.
Credit Wallets with Auto Top-Up and Expiration Rules
Every customer has a dedicated credit wallet that works like a prepaid balance. Credits can auto-recharge when they fall below a threshold, expire after a defined period, and support multiple currencies or credit types.
The wallet layer is designed for transparency and high-speed balance tracking.
Feature Gating and Entitlements
Flexprice lets you define entitlements at both plan and user levels. You can control access to APIs, features, or quotas directly from your billing setup instead of creating separate product versions.
This keeps your plans organized and simplifies upgrades or custom feature access.
Self-Hosted or Managed Deployment Options
Flexprice is open source and can be deployed on your own infrastructure for complete data control. You can also choose the managed cloud version if you want to skip maintenance and scaling concerns.
Self-hosting gives you visibility into your data, logs, and configuration while maintaining full flexibility over your billing logic.
Built for AI, API, and SaaS Billing
Flexprice is designed for companies that need usage-aware billing workflows. Whether you price per API call, per token, per user, or through credits, it gives you a single system to meter, price, and bill your usage in real time. It is built for developers who want control and extensibility without engineering overhead.
If you’ve ever tried setting up subscription billing, you know it’s never as simple as it sounds. Managing invoices, tracking usage, and handling credits can quickly turn into chaos.
That’s why more companies are turning to open-source subscription billing management tools. They give you control, transparency, and flexibility without vendor lock-ins or hidden fees.
In 2025, open-source billing isn’t just about saving costs. It’s how modern SaaS, API, and AI businesses build scalable, usage-based systems.
This guide covers the top tools that simplify subscription billing while keeping your pricing engine completely in your hands.
TL;DR
Open-source billing tools help companies manage subscriptions, usage-based pricing, and credits with more flexibility and transparency.
Flexprice: Best for AI, API, and SaaS companies needing real-time metering, hybrid pricing, and developer control.
Kill Bill: Suited for legacy integrations.
Lago: Ideal for mid-sized SaaS teams with simple use cases.
UniBee: Great for startups needing quick, simple subscription setups.
jBilling: Supports seamless integration of CRMs and ERPs
OpenMeter: Designed for lightweight event metering and data collection.
Axelor: Fits ERP-based organizations wanting billing within their management system.
Open-source tools provide cost savings, customization freedom, and no vendor lock-in offering the most modern, developer-friendly balance.
Top 7 Open-Source Billing Platforms
1. Flexprice:
Flexprice is an open-source tool for subscription management, metering, and billing, purpose-built for AI and SaaS companies. It eliminates the need to build complex billing systems from scratch by managing everything from usage tracking to feature access and billing logic in one place.
As a developer-first subscription management tool, Flexprice lets you implement real-time metering, hybrid pricing, and feature-based entitlements with complete flexibility.
It’s built to help AI, SaaS, and API businesses experiment, launch, and scale their pricing models without losing control over their infrastructure or data.
Key Features
Real-Time Event Ingestion and Aggregation
Flexprice captures and aggregates usage data in real-time. Every API call, token generation, or model request is recorded instantly so you always know what your customers are using.
The stream-based architecture ensures accuracy without relying on delayed batch jobs or manual reconciliation.
Hybrid Pricing Engine
Flexprice supports true hybrid monetization. You can combine fixed fees, usage-based charges, credit consumption, and overage pricing in a single structure.
Each component is configurable and linked directly to your usage data, giving you the flexibility to manage complex pricing without managing multiple systems.
Credit Wallets with Auto Top-Up and Expiration Rules
Every customer has a dedicated credit wallet that works like a prepaid balance. Credits can auto-recharge when they fall below a threshold, expire after a defined period, and support multiple currencies or credit types.
The wallet layer is designed for transparency and high-speed balance tracking.
Feature Gating and Entitlements
Flexprice lets you define entitlements at both plan and user levels. You can control access to APIs, features, or quotas directly from your billing setup instead of creating separate product versions.
This keeps your plans organized and simplifies upgrades or custom feature access.
Self-Hosted or Managed Deployment Options
Flexprice is open source and can be deployed on your own infrastructure for complete data control. You can also choose the managed cloud version if you want to skip maintenance and scaling concerns.
Self-hosting gives you visibility into your data, logs, and configuration while maintaining full flexibility over your billing logic.
Built for AI, API, and SaaS Billing
Flexprice is designed for companies that need usage-aware billing workflows. Whether you price per API call, per token, per user, or through credits, it gives you a single system to meter, price, and bill your usage in real time. It is built for developers who want control and extensibility without engineering overhead.
Get started with your billing today.
Get started with your billing today.
Get started with your billing today.
2. Kill Bill
Kill Bill is one of the oldest open-source billing engines, built for enterprises that need deep customization. It is an enterprise-grade, heavyweight billing engine.
Key Features
Comprehensive Workflow Support
Kill Bill supports various workflows from simple subscriptions to usage based billing along with invoicing, taxation and dunning. Most of these depend on complex plugins hence making it tedious to iterate on pricing.
Best Fit for Large Enterprises
It’s best suited for large enterprises with dedicated engineering and finance ops teams that can maintain custom integrations and workflows. For leaner SaaS or AI startups, this level of complexity can be overkill.
Reliable but slow to iterate
Developers appreciate Kill Bill’s long history and reliability, but community feedback often mentions its steep learning curve, rigid data model, and slower iteration cycles.
3. Lago
Lago is an open-source software for metering and usage-based billing. It is preferred by developers who build around APIs.
Key Features
Core Functionalities and Integrations
It handles core metering and invoicing use cases and integrates with common payment providers. Most advanced analytics and automation, however, need external tooling or manual extensions.
Best for Early-Stage SaaS Teams
Lago works best for early-stage SaaS teams with straightforward usage tracking but it can get trickier for dynamic, multi-metric AI workloads.
Clean UX
The developer community appreciates its clean developer UX but often notes gaps in real-time metering, credit logic, and entitlement management.
4. UniBee
UniBee is a lighter SaaS billing platform ideal for small to mid sized SaaS teams. It can be efficiently implemented for simple pricing models.
Key Features
High quality visual dashboards
It provides high quality visual dashboards but lacks a native framework for granular metering or hybrid subscription structures.
Best for small teams
This platform is ideal for small teams which look at minimal customization. Users like its simple interface but falls back to meet the user needs when requirements outgrow.
5. jBilling
jBilling is a long-standing open-source platform designed for large enterprises that require centralized billing across products.
Key Features
Seamless Integration of CRMs and ERPs
jBilling supports seamless integration of CRMs and ERPs along with the standard reporting features.
Best suited for legacy systems
jBilling is best suited for organizations that must tie billing into existing legacy systems rather than fast-moving SaaS or AI stacks.
Developers describe it as stable yet cumbersome, lacking the modular APIs and developer-first design that modern platforms like Flexprice prioritize.
6.OpenMeter
OpenMeter was built for pricing and billing SaaS products which is often complex and needs high-end engineering solutions.
Key Features
Collection and aggregation of data
It provides basic open-source metering with SDKs for Node.js, Python, and Go. It’s useful for collecting and aggregating usage data but falls short in handling end-to-end billing.
Best for simple metering pipelines
It is good for lightweight metering pipelines; billing, credit logic, and invoice generation. It needs to be implemented separately or integrated with another tool for holistic billing workflows. Best for developers who want to instrument event tracking themselves and connect it downstream to other finance systems.
7. Axelor
Axelor is an open-source ERP platform with modules for CRM, accounting, HR, and billing. Its subscription billing is an add-on. It is better for operational management than agile pricing experiments.
Key Features
Recurring invoices and customization
Axelor focuses on recurring invoicing, financial reporting and contract renewals. It allows customization to some extent but integrating them for usage based or hybrid pricing needs significant ERP level modifications.
Configuration with ERP systems
It is best suited for teams that want billing to be tightly knit with their ERP systems. The depth of its ERP ecosystem is appreciated but it is too complex to adopt for today’s SaaS.
How to Choose the Right Open-Source Billing Tool
Before choosing the right tool for your subscription billing management, you need to look into various factors concerning your business:
1. Business complexity
Firstly you should understand your business and the front that it operates on.
If you are looking at simple subscription platforms, lightweight tools are your go to but if your business operates on usage-based billing, credits, hybrid pricing models, new gen platforms like Flexprice built for metering and dynamic pricing should be your options.
2. Technical expertise
To integrate the tools into your existing ecosystems, you should look into the capabilities of your engineering teams. If you have seasoned experts, you can deploy technically complex tools but some tools like Flexprice are easy to integrate even with limited tech expertise.
This understanding will ensure that you integrate subscription billing management at lesser costs.
3. Integration needs
If your billing data must sync with multiple systems like CRMs, analytics tools, or data lakes, you can choose a platform with open APIs and native integrations.
Flexprice excels here with SDKs and flexible event ingestion pipelines, making it easy to connect usage data from any source. ERP-heavy organizations may prefer Axelor or jBilling.
4. Scalability
If you are looking at high volume customer bases, scalability becomes crucial. For that, real-time ingestion of millions of events is required. Dynamic tools like Flexprice or OpenMeter would be your go to platforms.
5. Community and support
Open-source projects rely heavily on community activity. When you’re choosing a billing platform, look for one with an active and responsive community.
Tools like Flexprice have transparent roadmaps and engaged contributors, making it easier for you to troubleshoot issues and iterate quickly. Kill Bill and jBilling still have mature communities, but discussions move slower.
Axelor’s forums focus more on ERP workflows than billing, and UniBee’s ecosystem is smaller and less developer-oriented. A vibrant community means faster answers, shared learning, and more confidence as you build and scale your billing system.
Choosing the Right Open-Source Tool for your Subscription Billing Management
Each open-source billing solution has a target set of users. Flexprice is the most sophisticated, developer-oriented one ideal for AI, API, and SaaS companies with live pricing, real-time metering, and open billing.
Open-source tools bring about flexibility, cost-effectiveness, and freedom from vendor lock-in allowing companies to control their pricing logic and update it in the future.
For those who care most about rapid iteration, clean codebases, and self-serve infrastructure, Flexprice is the best-balanced solution with developer control and usability.
Frequently Asked Questions (FAQs)
What makes Flexprice different from other subscription billing platforms?
Flexprice is built for modern, usage-based products; especially AI, infrastructure, and API companies. Unlike legacy systems that focus on static subscriptions, Flexprice handles real-time event ingestion, hybrid pricing models (subscriptions + usage + credits), and feature-level entitlements out of the box. It’s open-source, API-first, and designed for rapid experimentation without vendor lock-in.
What are the key features to look for in subscription billing platforms?
Look for support for multiple pricing models (subscription, usage, hybrid, or credit-based), real-time usage tracking, automated invoicing, and feature management. Strong API coverage, integration flexibility, and clear documentation are critical for scaling smoothly.
Can I switch subscription billing platforms without disrupting my business?
Yes, but it depends on how your current billing data is structured. Tools like Flexprice make migration easier by supporting data imports, historical usage ingestion, and sandbox environments for testing before full rollout. Transitioning gradually customer by customer is often the safest approach.
Can open-source subscription management tools handle recurring billing for different business models?
Absolutely. Open-source billing systems like Flexprice are designed to be model-agnostic, meaning they can support subscriptions, pay-as-you-go models, or hybrid plans. You can adapt them easily to your product’s pricing strategy without waiting for proprietary roadmap updates.
Are open-source billing platforms secure enough for handling payments and customer data?
Yes, provided they are deployed correctly. Flexprice, for example, supports role-based access control, encrypted communication, and integration with secure payment gateways like Stripe. Since it’s open-source, you can audit and harden the security configuration yourself—something closed systems don’t allow.
How hard is it to integrate open-source solutions with my existing tech stack?
Modern tools like Flexprice are API-first, so integration is typically straightforward. You can connect them to your CRM, data warehouse, or payment provider using standard REST APIs or SDKs. Older tools like Kill Bill or jBilling may require more setup and customization, while lightweight systems like UniBee or Lago integrate easily but offer limited flexibility for advanced use cases.
2. Kill Bill
Kill Bill is one of the oldest open-source billing engines, built for enterprises that need deep customization. It is an enterprise-grade, heavyweight billing engine.
Key Features
Comprehensive Workflow Support
Kill Bill supports various workflows from simple subscriptions to usage based billing along with invoicing, taxation and dunning. Most of these depend on complex plugins hence making it tedious to iterate on pricing.
Best Fit for Large Enterprises
It’s best suited for large enterprises with dedicated engineering and finance ops teams that can maintain custom integrations and workflows. For leaner SaaS or AI startups, this level of complexity can be overkill.
Reliable but slow to iterate
Developers appreciate Kill Bill’s long history and reliability, but community feedback often mentions its steep learning curve, rigid data model, and slower iteration cycles.
3. Lago
Lago is an open-source software for metering and usage-based billing. It is preferred by developers who build around APIs.
Key Features
Core Functionalities and Integrations
It handles core metering and invoicing use cases and integrates with common payment providers. Most advanced analytics and automation, however, need external tooling or manual extensions.
Best for Early-Stage SaaS Teams
Lago works best for early-stage SaaS teams with straightforward usage tracking but it can get trickier for dynamic, multi-metric AI workloads.
Clean UX
The developer community appreciates its clean developer UX but often notes gaps in real-time metering, credit logic, and entitlement management.
4. UniBee
UniBee is a lighter SaaS billing platform ideal for small to mid sized SaaS teams. It can be efficiently implemented for simple pricing models.
Key Features
High quality visual dashboards
It provides high quality visual dashboards but lacks a native framework for granular metering or hybrid subscription structures.
Best for small teams
This platform is ideal for small teams which look at minimal customization. Users like its simple interface but falls back to meet the user needs when requirements outgrow.
5. jBilling
jBilling is a long-standing open-source platform designed for large enterprises that require centralized billing across products.
Key Features
Seamless Integration of CRMs and ERPs
jBilling supports seamless integration of CRMs and ERPs along with the standard reporting features.
Best suited for legacy systems
jBilling is best suited for organizations that must tie billing into existing legacy systems rather than fast-moving SaaS or AI stacks.
Developers describe it as stable yet cumbersome, lacking the modular APIs and developer-first design that modern platforms like Flexprice prioritize.
6.OpenMeter
OpenMeter was built for pricing and billing SaaS products which is often complex and needs high-end engineering solutions.
Key Features
Collection and aggregation of data
It provides basic open-source metering with SDKs for Node.js, Python, and Go. It’s useful for collecting and aggregating usage data but falls short in handling end-to-end billing.
Best for simple metering pipelines
It is good for lightweight metering pipelines; billing, credit logic, and invoice generation. It needs to be implemented separately or integrated with another tool for holistic billing workflows. Best for developers who want to instrument event tracking themselves and connect it downstream to other finance systems.
7. Axelor
Axelor is an open-source ERP platform with modules for CRM, accounting, HR, and billing. Its subscription billing is an add-on. It is better for operational management than agile pricing experiments.
Key Features
Recurring invoices and customization
Axelor focuses on recurring invoicing, financial reporting and contract renewals. It allows customization to some extent but integrating them for usage based or hybrid pricing needs significant ERP level modifications.
Configuration with ERP systems
It is best suited for teams that want billing to be tightly knit with their ERP systems. The depth of its ERP ecosystem is appreciated but it is too complex to adopt for today’s SaaS.
How to Choose the Right Open-Source Billing Tool
Before choosing the right tool for your subscription billing management, you need to look into various factors concerning your business:
1. Business complexity
Firstly you should understand your business and the front that it operates on.
If you are looking at simple subscription platforms, lightweight tools are your go to but if your business operates on usage-based billing, credits, hybrid pricing models, new gen platforms like Flexprice built for metering and dynamic pricing should be your options.
2. Technical expertise
To integrate the tools into your existing ecosystems, you should look into the capabilities of your engineering teams. If you have seasoned experts, you can deploy technically complex tools but some tools like Flexprice are easy to integrate even with limited tech expertise.
This understanding will ensure that you integrate subscription billing management at lesser costs.
3. Integration needs
If your billing data must sync with multiple systems like CRMs, analytics tools, or data lakes, you can choose a platform with open APIs and native integrations.
Flexprice excels here with SDKs and flexible event ingestion pipelines, making it easy to connect usage data from any source. ERP-heavy organizations may prefer Axelor or jBilling.
4. Scalability
If you are looking at high volume customer bases, scalability becomes crucial. For that, real-time ingestion of millions of events is required. Dynamic tools like Flexprice or OpenMeter would be your go to platforms.
5. Community and support
Open-source projects rely heavily on community activity. When you’re choosing a billing platform, look for one with an active and responsive community.
Tools like Flexprice have transparent roadmaps and engaged contributors, making it easier for you to troubleshoot issues and iterate quickly. Kill Bill and jBilling still have mature communities, but discussions move slower.
Axelor’s forums focus more on ERP workflows than billing, and UniBee’s ecosystem is smaller and less developer-oriented. A vibrant community means faster answers, shared learning, and more confidence as you build and scale your billing system.
Choosing the Right Open-Source Tool for your Subscription Billing Management
Each open-source billing solution has a target set of users. Flexprice is the most sophisticated, developer-oriented one ideal for AI, API, and SaaS companies with live pricing, real-time metering, and open billing.
Open-source tools bring about flexibility, cost-effectiveness, and freedom from vendor lock-in allowing companies to control their pricing logic and update it in the future.
For those who care most about rapid iteration, clean codebases, and self-serve infrastructure, Flexprice is the best-balanced solution with developer control and usability.
Frequently Asked Questions (FAQs)
What makes Flexprice different from other subscription billing platforms?
Flexprice is built for modern, usage-based products; especially AI, infrastructure, and API companies. Unlike legacy systems that focus on static subscriptions, Flexprice handles real-time event ingestion, hybrid pricing models (subscriptions + usage + credits), and feature-level entitlements out of the box. It’s open-source, API-first, and designed for rapid experimentation without vendor lock-in.
What are the key features to look for in subscription billing platforms?
Look for support for multiple pricing models (subscription, usage, hybrid, or credit-based), real-time usage tracking, automated invoicing, and feature management. Strong API coverage, integration flexibility, and clear documentation are critical for scaling smoothly.
Can I switch subscription billing platforms without disrupting my business?
Yes, but it depends on how your current billing data is structured. Tools like Flexprice make migration easier by supporting data imports, historical usage ingestion, and sandbox environments for testing before full rollout. Transitioning gradually customer by customer is often the safest approach.
Can open-source subscription management tools handle recurring billing for different business models?
Absolutely. Open-source billing systems like Flexprice are designed to be model-agnostic, meaning they can support subscriptions, pay-as-you-go models, or hybrid plans. You can adapt them easily to your product’s pricing strategy without waiting for proprietary roadmap updates.
Are open-source billing platforms secure enough for handling payments and customer data?
Yes, provided they are deployed correctly. Flexprice, for example, supports role-based access control, encrypted communication, and integration with secure payment gateways like Stripe. Since it’s open-source, you can audit and harden the security configuration yourself—something closed systems don’t allow.
How hard is it to integrate open-source solutions with my existing tech stack?
Modern tools like Flexprice are API-first, so integration is typically straightforward. You can connect them to your CRM, data warehouse, or payment provider using standard REST APIs or SDKs. Older tools like Kill Bill or jBilling may require more setup and customization, while lightweight systems like UniBee or Lago integrate easily but offer limited flexibility for advanced use cases.
Bhavyasri Guruvu
Bhavyasri Guruvu
Bhavyasri Guruvu
Bhavyasri Guruvu is a part of the content team at Flexprice. She loves turning complex SaaS concepts simple. Her creative side has more to it. She's a dancer and loves to paint on a random afternoon.
Bhavyasri Guruvu is a part of the content team at Flexprice. She loves turning complex SaaS concepts simple. Her creative side has more to it. She's a dancer and loves to paint on a random afternoon.
Bhavyasri Guruvu is a part of the content team at Flexprice. She loves turning complex SaaS concepts simple. Her creative side has more to it. She's a dancer and loves to paint on a random afternoon.
Share it on:
Ship Usage-Based Billing with Flexprice
Get started
Share it on:
Ship Usage-Based Billing with Flexprice
Get started
More insights on billing
Insights on
billing and beyond
