Haystack Has a Free API You Should Know About

Haystack is an open-source framework for building production-ready RAG pipelines, search systems, and AI agents. It handles document processing, embedding, retrieval, and generation in composable pipelines. Why Haystack for Production RAG A company tried building RAG with raw LangChain but hit production issues — no document preprocessing, no evaluation, brittle chains. Haystack provides production-grade pipelines with built-in evaluation. Key Features: Pipeline Architecture — Composable, reusable components Document Processing — PDF, HTML, Markdown, DOCX converters Multiple Retrievers — BM25, embedding, hybrid search Evaluation — Built-in RAG evaluation metrics Agent Support — Tool-using AI agents Quick Start pip install haystack-ai from haystack import Pipeline from haystack.components.generators import OpenAIGenerator from haystack.components.builders import PromptBuilder pipe = Pipeline () pipe . add_component ( " prompt " , PromptBuilder ( template = " Answer: {{question}} " )) pi