# KlickTipp API Documentation – Authentication & Integration

> Official KlickTipp API documentation. Learn how to authenticate, integrate external systems, and build reliable automations using the KlickTipp API.

## Table of contents

 - [Integration Models & PHP Connector](https://developers.klicktipp.com/guides/integration-models.md)
 - [Manage large sets of Tags](https://developers.klicktipp.com/guides/tag-management-templates.md)
 - [Connect KlickTipp with Claude or Codex via MCP](https://developers.klicktipp.com/guides/local-mcp-server.md)
 - [Webhooks & Event Subscriptions](https://developers.klicktipp.com/guides/webhooks-and-events.md)
 - [Choosing Between the Listbuilding API and the Management API](https://developers.klicktipp.com/guides/api-selection-rules.md)
 - [CRM Integration](https://developers.klicktipp.com/guides/crm-integration.md)
 - [Data Field Types and Input Formats](https://developers.klicktipp.com/guides/data-field-types.md)
 - [API Overview](https://developers.klicktipp.com/guides.md)
 - [Error Handling and Validation](https://developers.klicktipp.com/guides/error-handling.md)
 - [Secure & Easy Integration with the Listbuilding API](https://developers.klicktipp.com/guides/listbuilding-api.md)
 - [Form Integration](https://developers.klicktipp.com/guides/form-integration.md)
 - [How to authenticate and access the Management API](https://developers.klicktipp.com/guides/management-api-authentication.md)
 - [Building Robust Integrations with the Management API](https://developers.klicktipp.com/guides/management-api.md)
 - [Secure Tracking and Page Personalization via Subscriber Key](https://developers.klicktipp.com/guides/subscriber-key.md)
 - [Webinar Integration](https://developers.klicktipp.com/guides/webinar-integration.md)
 - [KlickTipp Listbuilding API](https://developers.klicktipp.com/listbuilding-api.md)
 - [KlickTipp API](https://developers.klicktipp.com/management-api.md)