# apaleo Developer Documentation

> Technical documentation and API reference for apaleo's hospitality platform. Comprehensive guides for integrating hotel management systems, payment processing, channel management, and UI extensions with apaleo's cloud-based property management system.

apaleo provides a complete API ecosystem for hospitality technology integrations. Our documentation covers authentication flows, core business APIs, specialized integration patterns, and UI extensibility through apaleo One. Whether you're building channel managers, payment integrations, revenue management tools, or custom hotel applications, this documentation provides the technical guidance and API references you need.

The platform supports both public marketplace integrations (via apaleo Store) and private custom integrations. All integrations use OAuth 2.0 for secure authentication and provide comprehensive webhook support for real-time data synchronization.

### Core API Documentation

- [API Overview](https://apaleo.dev/guides/api/overview.md): Getting started with apaleo APIs, Swagger documentation, and essential concepts
- [Authentication Guide](https://apaleo.dev/guides/oauth-connection/authentication.md): Complete OAuth 2.0 implementation guide with flow selection
- [Authorization Code Grant](https://apaleo.dev/guides/oauth-connection/auth-code-grant.md): OAuth flow for public marketplace integrations
- [Client Credentials Grant](https://apaleo.dev/guides/oauth-connection/client-credentials-grant.md): OAuth flow for private custom integrations
- [API Endpoints Reference](https://apaleo.dev/guides/api/endpoints.md): Complete endpoint documentation and usage examples
- [Error Handling](https://apaleo.dev/guides/api/errors.md): Error codes, troubleshooting, and best practices
- [Rate Limiting](https://apaleo.dev/guides/api/rate-limiting.md): API usage limits and optimization strategies

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### Business Integration Guides

- [Channel Integration](https://apaleo.dev/guides/business-cases/channel-integration/overview.md): Complete guide for OTA and channel-manager integrations with ARI data
- [IBE Integration](https://apaleo.dev/guides/business-cases/ibe/overview.md): Internet booking engine implementation using Booking API
- [POS Integration](https://apaleo.dev/guides/business-cases/pos-integration/overview.md): Point-of-sale system integration with reservation posting
- [Revenue Management](https://apaleo.dev/guides/business-cases/revenue-management/overview.md): Rate-management system integration with dynamic pricing
- [Finance Management](https://apaleo.dev/guides/business-cases/finance-management/overview.md): ERP and accounting system integration
- [Guest Journey](https://apaleo.dev/guides/business-cases/guest-journey/overview.md): Guest-facing application integration and automation
- [Upsell Integration](https://apaleo.dev/guides/business-cases/upsell/overview.md): Room-upgrade and service-upselling system integration

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### Payment Integration

- [apaleo Pay Overview](https://apaleo.dev/guides/pay-integration/overview.md): Comprehensive payment-processing integration guide
- [Payment Setup](https://apaleo.dev/guides/pay-integration/setup.md): Merchant-account configuration and payment-flow setup
- [Folio Payments](https://apaleo.dev/guides/pay-integration/pay-folio.md): Guest-bill payment processing and management
- [POS Payments](https://apaleo.dev/guides/pay-integration/pos-payment.md): Point-of-sale payment-integration patterns
- [Pre-authorization](https://apaleo.dev/guides/pay-integration/pre-auth.md): Credit-card pre-authorization for reservations

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### UI Integration (apaleo One)

- [apaleo One Overview](https://apaleo.dev/guides/apaleo-one/overview.md): Complete guide for embedding applications in apaleo UI
- [Dashboard Integration](https://apaleo.dev/guides/apaleo-one/overview.md#dashboardaccountcontext): Account- and property-dashboard widgets
- [Reservation Details](https://apaleo.dev/guides/apaleo-one/overview.md#reservationdetailstab): Custom tabs in reservation-management interface
- [iframe Resizer](https://apaleo.dev/guides/apaleo-one/iframe-resizer.md): Dynamic sizing for embedded applications
- [Guest Details Integration](https://apaleo.dev/guides/apaleo-one/guest-details-crm.md): CRM integration in guest profiles

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### Webhooks & Real-time Data

- [Webhook Overview](https://apaleo.dev/guides/webhook/overview.md): Event-driven integration setup and configuration
- [Webhook Configuration](https://apaleo.dev/guides/webhook/configuration.md): Setting up webhook endpoints and security
- [Event Payloads](https://apaleo.dev/guides/webhook/webhooks-payload.md): Complete webhook-event structure reference
- [ARI Subscriptions](https://apaleo.dev/guides/business-cases/channel-integration/ari-subscriptions.md): Availability, rates, and inventory change notifications

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### App Store & Certification

- [apaleo Store Overview](https://apaleo.dev/guides/apaleo-store/overview.md): Publishing applications to the apaleo marketplace
- [App Certification](https://apaleo.dev/guides/apaleo-store/certify-your-app.md): Requirements and process for marketplace approval
- [Store Listing](https://apaleo.dev/guides/apaleo-store/listing-your-app.md): Creating compelling app-store listings

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### Optional

- [API Scopes Reference](https://apaleo.dev/guides/api/scopes.md): Complete permission-scope documentation
- [API Versioning](https://apaleo.dev/guides/api/versioning.md): API version management and migration guidance
- [Pagination](https://apaleo.dev/guides/api/panignation.md): Handling large data sets in API responses
- [Troubleshooting](https://apaleo.dev/guides/api/trouble-shooting.md): Common integration issues and solutions
- [Third-party Cookies](https://apaleo.dev/guides/apaleo-one/third-party-cookies.md): Browser compatibility for embedded applications
- [Best Practices](https://apaleo.dev/guides/oauth-connection/best-practices.md): Security and performance recommendations