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

# TransactionGuard API

> Real-time transaction monitoring and payment fraud prevention

The TransactionGuard API provides real-time transaction scoring and monitoring to prevent payment fraud.

## Key Features

<CardGroup cols={2}>
  <Card title="Real-time Scoring" icon="bolt">
    Sub-50ms response times for transaction decisions
  </Card>

  <Card title="Pattern Analysis" icon="chart-line">
    ML-powered detection of fraudulent patterns
  </Card>

  <Card title="Rule Engine" icon="gears">
    Customizable rules for your business logic
  </Card>

  <Card title="Case Management" icon="folder-open">
    Review and manage flagged transactions
  </Card>
</CardGroup>

## Base URL

```
https://api.txcloud.io/v1/transactions
```

For testing, use the sandbox environment:

```
https://sandbox.api.txcloud.io/v1/transactions
```

## Authentication

All requests require a Bearer token:

```bash theme={null}
curl https://api.txcloud.io/v1/transactions/score \
  -H "Authorization: Bearer txc_live_your_api_key"
```

## Quick Start

```javascript theme={null}
import TXCloud from '@txcloud/sdk';

const txcloud = new TXCloud('your_api_key');

const result = await txcloud.transactions.score({
  transaction_id: 'txn_123',
  amount: 1500.00,
  currency: 'MAD',
  user_id: 'user_456',
  payment_method: 'card',
  card: {
    bin: '411111',
    last_four: '1234'
  }
});

console.log(result.decision); // 'approve'
```

## Endpoints

| Method | Endpoint                    | Description             |
| ------ | --------------------------- | ----------------------- |
| POST   | `/transactions/score`       | Score a transaction     |
| GET    | `/transactions/{id}`        | Get transaction details |
| GET    | `/transactions`             | List transactions       |
| POST   | `/transactions/{id}/review` | Submit review decision  |
| GET    | `/transactions/rules`       | List scoring rules      |