# Introduction

Welcome to the official **Wallapop Connect API™️** documentation! This API enables third-party integrators and professional sellers to publish items, manage sales, and track transactions, allowing seamless integration with Wallapop's marketplace.

Quick Start Guide
Begin with as few steps as possible.

API Reference
Access detailed API specifications.

API Essentials
- [Authentication and Authorization](/pages/api-essentials/auth)
- [API Resources](/pages/api-essentials/resources)
- [Publishing Items](/pages/api-essentials/publishing-items)
- [How Transactions Work](/pages/api-essentials/how-transactions-work)


Guides
- [Listing](/pages/guides/listing)
- [Transactions](/pages/guides/transactions)
- [Webhooks](/pages/guides/webhooks)


Updates
Stay updated on the latest and pending API changes.