---
title: "Best Usage-Based Billing & Metering Platforms in 2026 (4 Tools Compared) | App Stack Builder"
description: "AI and API products charge for tokens, calls and credits, and per-seat subscription billing was not built for that. Usage billing platforms meter events, pric"
source: https://appstackbuilder.com/categories/usage-billing
retrieved: 2026-10-08
---

Usage-Based Billing & Metering

# Best Usage-Based Billing & Metering Platforms in 2026

AI and API products charge for tokens, calls and credits, and per-seat subscription billing was not built for that. Usage billing platforms meter events, price them and turn them into invoices. Here are the leading options in 2026, from open-source engines you can self-host to the enterprise platforms now owned by Stripe and Adyen.

## Usage-Based Billing & Metering Tools Compared

| Tool                          | Pricing                  | Free tier |
| ----------------------------- | ------------------------ | --------- |
| [Lago](https://appstackbuilder.com/tools/lago)           | Free · paid from $599/mo | ✓         |
| [Flexprice](https://appstackbuilder.com/tools/flexprice) | Free · paid from $500/mo | ✓         |
| [Metronome](https://appstackbuilder.com/tools/metronome) | Usage-based              | —         |
| [Orb](https://appstackbuilder.com/tools/orb)             | Usage-based              | —         |

## The Best Usage-Based Billing & Metering Tools, Ranked

![Lago](https://www.google.com/s2/favicons?domain=getlago.com&sz=128)

### 1. Lago

Free tier· Free · paid from $599/mo

Open-source usage-based billing: meter events, price them with any model, and generate invoices. Self-host free or use Lago Cloud.

* ✓Open source and self-hostable
* ✓Handles hybrid subscription + usage pricing
* ✓Works with several payment providers, not just Stripe
[Lago & alternatives ](https://appstackbuilder.com/tool-alternatives/lago)

![Flexprice](https://www.google.com/s2/favicons?domain=flexprice.io&sz=128)

### 2. Flexprice

Free tier· Free · paid from $500/mo

Open-source billing for AI and API products: usage, credits and hybrid pricing with published prices and a free cloud tier.

* ✓Open source with a free hosted tier
* ✓Published prices, which is rare in billing
* ✓Built for credit and wallet models common in AI products
[Flexprice & alternatives ](https://appstackbuilder.com/tool-alternatives/flexprice)

![Metronome](https://www.google.com/s2/favicons?domain=metronome.com&sz=128)

### 3. Metronome

· Usage-based

Usage-based billing platform for AI and cloud companies, now owned by Stripe. Real-time metering, contracts and credits at very high event volume.

* ✓Handles very high event volume
* ✓Enterprise contracts with commits and credits
* ✓Tight Stripe integration now that Stripe owns it
[Metronome & alternatives ](https://appstackbuilder.com/tool-alternatives/metronome)

![Orb](https://www.google.com/s2/favicons?domain=withorb.com&sz=128)

### 4. Orb

· Usage-based

Usage-based billing and revenue platform for high-volume SaaS and AI companies, with real-time metering and SQL-defined metrics. Sales-led pricing.

* ✓SQL-defined metrics are flexible and auditable
* ✓Simulate pricing changes on historical usage
* ✓Strong finance and warehouse integrations
[Orb & alternatives ](https://appstackbuilder.com/tool-alternatives/orb)

## How to choose a usage-based billing & metering tool

* Check what your payment provider already covers. Stripe Billing handles simple metered prices, and a dedicated platform earns its cost with credits, commits, hybrid pricing or very high event volume.
* Choose Lago for the most mature open-source engine. Self-host it free, or start on Lago Cloud free until $250K invoiced.
* Choose Flexprice for open-source billing built around credits and wallets, with published cloud prices and a free tier.
* Choose Orb when finance wants SQL-defined metrics, pricing simulations and warehouse sync, and you are ready for a sales-led contract.
* Choose Metronome for very high event volume and enterprise contracts, especially if you already bill through Stripe, which now owns it.
* Model the fee at your revenue in two years. Percentage-of-billings pricing that looks cheap today can become your largest software bill.

## Frequently Asked Questions

What are the best usage-based billing & metering tools for startups in 2026?⌄

The best usage-based billing & metering tools for startups in 2026 include Lago, Flexprice, Metronome, Orb. Compare them by pricing, free tiers, and features in the list above.

What is the best free usage-based billing & metering tool?⌄

Free usage-based billing & metering options include Lago, Flexprice — all offer a free tier suitable for bootstrapped startups and MVPs.

How do I choose a usage-based billing & metering tool?⌄

Start with your budget and team size, prefer tools with a free tier to validate, and make sure your pick integrates with the rest of your stack. App Stack Builder can recommend a complete, budget-aware stack in about 60 seconds.

## Need the whole stack, not just usage-based billing & metering?

Get a free, AI-powered tech stack — matched to your budget, app type, and team size in 60 seconds.

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