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

# API Reference

> API documentation and integration guides for external services

# API Reference

This section provides comprehensive documentation for all API integrations used in Remind Tools.

## Overview

Remind Tools integrates with several powerful APIs to deliver a rich user experience:

> **[Supabase](/api/supabase)**
>
> Backend services, database, and real-time features

> **[Google Gemini](/api/gemini)**
>
> AI-powered features and intelligent assistance

> **[MapBox](/api/mapbox)**
>
> 3D maps and location services

## Integration Architecture

```mermaid theme={null}
graph TB
    A[Flutter Apps] --> B[API Service Layer]
    B --> C[Supabase Backend]
    B --> D[Gemini AI]
    B --> E[MapBox GL]
    C --> F[(PostgreSQL)]
    C --> G[Edge Functions]
    C --> H[Realtime]
```

## Authentication Flow

All API calls are authenticated through Supabase Auth:

**1. User Authentication**

User signs in via Supabase Auth (email, social providers)

**2. Token Generation**

Supabase generates JWT tokens for authenticated sessions

**3. API Authorization**

Tokens are used to authorize API calls to backend services

**4. Service Integration**

Backend validates tokens and processes requests

## Rate Limiting

> [!WARNING]
>
> All APIs have rate limits. Please review individual service documentation for specific limits.

| Service | Rate Limit | Window |
| - | - | - |
| Supabase | 1000 req/min | Per project |
| Gemini Pro | 60 req/min | Per API key |
| MapBox | 600 req/min | Per token |

## Environment Configuration

API keys and endpoints are managed through environment files:

```bash theme={null}
# .env.development
SUPABASE_URL=your_supabase_url
SUPABASE_ANON_KEY=your_anon_key
GEMINI_API_KEY=your_gemini_key
MAPBOX_ACCESS_TOKEN=your_mapbox_token
```

## Error Handling

All API integrations follow a consistent error handling pattern:

```dart theme={null}
try {
  final response = await apiClient.request();
  return Success(response);
} on ApiException catch (e) {
  return Failure(e.message);
} catch (e) {
  return Failure('Unexpected error occurred');
}
```

## Monitoring & Analytics

API usage is monitored through:

* Request/response logging
* Performance metrics
* Error tracking
* Usage analytics

## Security Best Practices

1. **Never expose API keys in client code**
2. **Use environment-specific configurations**
3. **Implement request signing where applicable**
4. **Validate all API responses**
5. **Handle errors gracefully**
6. **Implement retry logic with exponential backoff**

## Support

For API-related issues:

* Check service status pages
* Review error logs
* Consult individual API documentation
* Contact support through GitHub issues


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