Captcha Assessment API

Overview

The Captcha Assessment API provides captcha validation services to prevent automated abuse and ensure legitimate user interactions within the Gustaffo Reservations system.

Base Path

All captcha assessment endpoints are prefixed with /captcha

Authentication

Captcha assessment endpoints are typically used without authentication but may require API keys for advanced features.

Captcha Validation Process

The captcha validation process follows these steps:

1. Challenge Generation: System generates captcha challenge
2. Challenge Presentation: Challenge is presented to user
3. User Response: User responds to the challenge
4. Response Submission: System receives user response
5. Validation: System validates the response
6. Risk Assessment: System analyzes risk factors
7. Decision: System decides if interaction is legitimate
8. Result Return: Validation result is returned
9. Logging: Result is logged for analysis

Endpoints

Captcha Validation

Validates captcha responses to ensure legitimate user interactions.

Key Operations: - Validate captcha responses - Generate captcha challenges - Assess user interaction legitimacy - Provide fraud detection scoring

Assessment Services

Provides comprehensive assessment of user interactions.

Key Features: - Real-time captcha validation - Risk scoring algorithms - Behavioral analysis - Fraud detection capabilities

Captcha Types

Visual Captcha

• Image-based challenges
• Text recognition challenges
• Object identification
• Pattern matching

Audio Captcha

• Audio-based challenges
• Voice recognition
• Sound pattern identification
• Accessibility compliance

Behavioral Captcha

• Mouse movement analysis
• Typing pattern analysis
• Interaction timing analysis
• Device fingerprinting

Business Rules

Validation Rules

• Captcha responses must be validated within time limits
• Failed attempts are tracked and limited
• Repeated failures trigger additional security measures
• Validation results are logged for analysis

Security Measures

• Rate limiting prevents abuse
• IP-based blocking for suspicious activity
• Progressive difficulty for repeated failures
• Integration with fraud detection systems

Assessment Scoring

Risk Scoring

• User interaction legitimacy scores
• Behavioral pattern analysis
• Historical interaction patterns
• Device and network analysis

Fraud Detection

• Automated bot detection
• Suspicious behavior identification
• Pattern recognition algorithms
• Machine learning-based assessment

Integration Points

The Captcha Assessment API integrates with: - Form validation systems - User authentication services - Fraud detection platforms - Security monitoring systems - Analytics and reporting tools

Performance Considerations

Response Times

• Fast captcha validation
• Cached assessment results
• Optimized challenge generation
• Efficient scoring algorithms

Scalability

• High-throughput validation
• Distributed assessment processing
• Load balancing capabilities
• Auto-scaling infrastructure

Error Handling

Common error scenarios: - Invalid captcha responses - Expired captcha challenges - Assessment service failures - Rate limit exceeded - Network connectivity issues