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

# Integrations overview

> Connect Narev Cloud to your billing stack with framework integrations like Next.js and billing platforms like Stripe, Polar, OpenMeter, and Kong.

## Connect billing in your stack

Narev Cloud integrates in two ways:

* **Billing platforms** metered usage and subscriptions flow through providers such as Stripe, Polar, Kong, and OpenMeter.
* **Frameworks** show how to wire metering and reporting in Node.js servers and full-stack apps, including Express, `Fastify`, NestJS, `Hono`, Next.js, and Nuxt. Open the framework guides in the sidebar to see which stacks have detailed guides today.

## Pair any framework with any billing platform

You can pair **any** supported framework with **any** supported billing platform. Narev Cloud normalizes usage and pricing in the middle so the matrix stays consistent.

```mermaid theme={null}
flowchart LR
  subgraph frameworks["Frameworks"]
    direction TB
    subgraph node["Node.js stacks"]
      direction TB
      Next["Next.js"]
      Nuxt["Nuxt"]
      Express["Express"]
      Fastify["Fastify"]
      Nest["NestJS"]
      Hono["Hono"]
    end
  end
  Narev["Narev Cloud"]
  subgraph platforms["Billing platforms"]
    direction TB
    Stripe["Stripe"]
    Polar["Polar"]
    Kong["Kong"]
    OpenMeter["OpenMeter"]
  end
  Next --> Narev
  Nuxt --> Narev
  Express --> Narev
  Fastify --> Narev
  Nest --> Narev
  Hono --> Narev
  Narev --> Stripe
  Narev --> Polar
  Narev --> Kong
  Narev --> OpenMeter
```