Components

Haystack provides all the tools needed to build a custom NLP application that works for you. This includes everything from prototyping, to annotating data, to deployment.

Component	Description
Documents, Answers and Labels	The core data structures of Haystack.
Document Stores	These store your Document corpus and connect to various backend databases.
Pipelines	Pipelines allow for easy configuration of Haystack's NLP components.
Ready-Made Pipelines	Template Pipelines that cover the most common use cases.
REST API	The REST API allows for quick deployment of Pipelines as a service.
Annotation Tool	A tool for managing teams of annotators and facilitating the annotation of text for Question Answering and Document Search.
Pseudo Label Generator	Creates training data for domain adaptation of dense Retrievers without human annotation.