# Fifteenth Partner API ## Docs - [Authentication](https://apidocs.fifteenth.com/authentication.md): Learn how to authenticate with the Fifteenth Partner API - [Create Account](https://apidocs.fifteenth.com/endpoints/accounts/create.md): Create a new tax preparation account for a client with custom branding and authentication - [Generate Login Link](https://apidocs.fifteenth.com/endpoints/accounts/login-link.md): Generate a new secure login link for client access to their Fifteenth account - [Retrieve Account](https://apidocs.fifteenth.com/endpoints/accounts/retrieve.md): Retrieve detailed information about a specific client account - [Get Project Deliverable](https://apidocs.fifteenth.com/endpoints/deliverables/get.md): Get the primary deliverable for a tax project with viewing link and summary - [List Deliverables](https://apidocs.fifteenth.com/endpoints/deliverables/list.md): Retrieve all deliverables across all projects - [List Documents](https://apidocs.fifteenth.com/endpoints/documents/list.md): Retrieve all documents for a client account with filtering options - [Retrieve Document](https://apidocs.fifteenth.com/endpoints/documents/retrieve.md): Get document details and metadata - [Upload Document](https://apidocs.fifteenth.com/endpoints/documents/upload.md): Upload tax documents for AI-powered processing and extraction - [Health Check](https://apidocs.fifteenth.com/endpoints/health/check.md): Check API service health and connectivity - [List Projects](https://apidocs.fifteenth.com/endpoints/projects/list.md): Retrieve all tax projects for a client account - [Project Status](https://apidocs.fifteenth.com/endpoints/projects/status.md): Get detailed status and progress information for a tax project - [Introduction](https://apidocs.fifteenth.com/introduction.md): Welcome to the Fifteenth Partner API documentation - [Quickstart](https://apidocs.fifteenth.com/quickstart.md): Start building with the Fifteenth Partner API in under 10 minutes ## OpenAPI Specs - [openapi](https://apidocs.fifteenth.com/api-reference/openapi.json)