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

# API Reference

> Build on top of the Aries trading platform with our OAuth2-secured REST API

The Aries API gives you programmatic access to user accounts, trading, market data, and analytics. All API endpoints are secured with **OAuth2** — your application requests permission on behalf of a user, receives an access token, and uses that token to make authenticated requests.

## Base URL

```
https://api.aries.com
```

***

## Get Started

<CardGroup cols={2}>
  <Card title="Quick Start" icon="rocket" href="/api-reference/quickstart">
    Make your first authenticated API call in under 5 minutes. Covers client setup, authorization, token exchange, and a live API call.
  </Card>

  <Card title="OAuth2 Guide" icon="shield-halved" href="/api-reference/oauth2/guide">
    Full OAuth2 reference: authorization flow, refresh tokens, scopes, PKCE, security best practices, and troubleshooting.
  </Card>
</CardGroup>

***

## API Categories

<CardGroup cols={2}>
  <Card title="Account Information" icon="building" href="/api-reference/accounts/user-accounts">
    View account balances, positions, and transaction history.

    **Required scope:** `account:information`
  </Card>

  <Card title="Order Execution" icon="chart-line" href="/api-reference/orders/place-order">
    Place, modify, and cancel orders.

    **Required scopes:** `order:execution`, `order:information`
  </Card>

  <Card title="Market Data" icon="chart-bar" href="/api-reference/marketdata/search">
    Real-time and historical market data, quotes, and instrument information.

    **Required scope:** `market:information`
  </Card>

  <Card title="Analytics" icon="calculator" href="/api-reference/analytics/ratings">
    Trading analytics, ratings, insights, and performance metrics.

    **Required scope:** `analytics:information`
  </Card>

  <Card title="Options Data" icon="sliders" href="/api-reference/supplemental/options-expiry-dates">
    Options chains, Greeks, expiration data, and options analytics.

    **Required scope:** `options:information`
  </Card>

  <Card title="Calendar Events" icon="calendar" href="/api-reference/calendars/economics">
    Earnings announcements, economic events, and market schedules.

    **Required scope:** `calendar:information`
  </Card>

  <Card title="Positions" icon="layer-group" href="/api-reference/accounts/positions">
    View current positions, holdings, and position analytics.

    **Required scope:** `position:information`
  </Card>

  <Card title="Supplemental" icon="layer-group" href="/supplemental-api/overview">
    View News, company profiles, financials, filings, ETF data, technical analysis.

    **Required scope:** `market:supplemental`
  </Card>
</CardGroup>

***

## Support

<CardGroup cols={3}>
  <Card title="Email Support" icon="envelope">
    [dev@aries.com](mailto:dev@aries.com)
  </Card>

  <Card title="Developer Portal" icon="code">
    [aries.com](https://aries.com)
  </Card>

  <Card title="API Status" icon="activity">
    [status.aries.com](https://status.aries.com)
  </Card>
</CardGroup>