> ## Documentation Index
> Fetch the complete documentation index at: https://docs.metrifox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Welcome to Metrifox

### **Overview**

Metrifox is the **monetization and billing infrastructure for the AI economy**. We provide a unified API and platform that empowers engineering, product, growth and finance teams to launch any pricing model: *subscriptions, usage-based, credits, or outcome-based pricing*, without building and maintaining complex internal systems.

Our **developer-first** platform is **flexible and scalable**, so you can focus on building your product, not your billing.

### **How Metrifox Delivers Value**

Metrifox is the flexible and scalable platform that gives you total control over your pricing and packaging. With a single, lightweight integration, you can:

<Icon icon="circle-check" iconType="solid" color="#DEF764" size={16} />  **Define your value metrics:** Choose exactly what to monetize, whether it's API calls, tokens, storage, or outcomes.

<Icon icon="circle-check" iconType="solid" color="#DEF764" size={16} />  **Package with flexibility:** Rapidly launch, iterate, and adapt your product's pricing and plans, from simple subscriptions to complex, hybrid usage-based models.

<Icon icon="circle-check" iconType="solid" color="#DEF764" size={16} />  **Manage customers:** Gain real-time visibility and control over customer entitlements, usage metering, and access to features.

<Icon icon="circle-check" iconType="solid" color="#DEF764" size={16} />  **Go-to-market faster:** Instantly render pricing pages, paywalls, and self-serve portals without writing any front-end code.

<Icon icon="circle-check" iconType="solid" color="#DEF764" size={16} />  **Keep your stack synced:** Automatically propagate pricing changes and customer data to your CRM, billing systems, and other business tools.

<Check>
  Manage everything through Metrifox’s intuitive UI, enabling product and go-to-market teams to launch and iterate on pricing models instantly, no engineering required.
</Check>

### How Metrifox works:

Metrifox sits at the intersection of your product, your customers, and your revenue operations. Here’s the simple flow:

1. **Price modelling:** Use the Metrifox UI to define pricing models for your offerings, including plans, add-ons, and single purchases. Choose from subscription-based, usage-based, outcome-based, hybrid, and credit-based models.
2. **Entitlement check**: Run real-time entitlement checks to grant or restrict access based on a customer's plan, add-ons, usage limits, and available credit balance — ensuring features are delivered according to their entitlements.
3. **Track usage or outcome**: Send events from your application to Metrifox (e.g., `ai_tokens_used: 5000`, `api_calls: 1`) for accurate metering.
4. **Rate usage or outcome:** Metrifox applies pricing rules to usage data or outcome events, enabling dynamic rating across models.
5. **Automate billing:** Automatically generate compliant invoices, manage subscriptions, run billing cycles, and handle renewal.
6. **Analyze**: Gain clear visibility into revenue, customer usage, and margins all in one place.