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

# Overview

> Complete endpoint reference for the Nuvion API.

The Nuvion API is a REST API. All requests use HTTPS, accept JSON bodies, and return JSON responses.

## Base URLs

| Environment | Base URL                 |
| ----------- | ------------------------ |
| Production  | `https://api.nuvion.co`  |
| Sandbox     | `https://api.nuvion.dev` |

Use the sandbox environment for development and testing.

## Authentication

All requests require a Bearer token in the `Authorization` header.

```bash theme={null}
Authorization: Bearer NUVION_API_KEY
```

See [Authentication](/authentication) for details on API key scopes and management.

## Versioning

The API version is set via an optional request header. If omitted, requests default to the latest version (`2026-02-06`).

```bash theme={null}
X-API-Version: 2026-02-06
```

## Endpoints

<CardGroup cols={2}>
  <Card title="Entities" icon="user" href="/api-reference/entities">
    Create and manage individual and business entities.
  </Card>

  <Card title="Accounts" icon="building-columns" href="/api-reference/accounts">
    Open and manage multi-currency accounts.
  </Card>

  <Card title="Account Details" icon="receipt" href="/api-reference/account-details">
    Retrieve bank account numbers and wallet addresses.
  </Card>

  <Card title="Counterparties" icon="users" href="/api-reference/counterparties">
    Create and manage payout recipients.
  </Card>

  <Card title="Transfers" icon="arrow-right-arrow-left" href="/api-reference/transfers">
    Send bank transfers, mobile money, and stablecoin payouts.
  </Card>

  <Card title="Cards" icon="credit-card" href="/api-reference/cards">
    Issue virtual and disposable cards with spending controls.
  </Card>
</CardGroup>

<Note>
  API reference pages are being added progressively. If you need documentation for a specific endpoint before it is published here, refer to the guide pages or contact support.
</Note>