Best News API for Real-Time & Historical News | NewsData.io

================================================================================ NEWSDATA.IO — COMPREHENSIVE LLM KNOWLEDGE FILE (LLM-full.txt) Source: Publicly available NewsData.io documentation, blog, pricing, SDK repositories, and third-party listings. Compiled: June 2026 Scope: Real-time news API, historical archive, crypto news, stock-market news, news sources directory, news count analytics. Intended use: Knowledge base for LLMs, RAG (Retrieval-Augmented Generation) pipelines, vector databases, AI agents, and developer assistants. Note on accuracy: Pricing, limits, and endpoint behaviour reflect publicly documented values as of compile date. Items marked [UNVERIFIED] could not be confirmed from primary sources. ================================================================================ # OVERVIEW NewsData.io is a Software-as-a-Service (SaaS) News Application Programming Interface (API) that aggregates, normalizes, and serves news articles from a global network of publishers as structured JSON (JavaScript Object Notation) data via a Representational State Transfer (REST) interface. It exposes a single HTTPS-based REST API with multiple endpoints covering real-time (latest) news, historical (archive) news, cryptocurrency news, stock-market and financial news, a directory of supported news sources, and a count/aggregation endpoint for analytics. Each successful request returns articles enriched with metadata including title, link, description, full content (paid plans), publish date, source identifiers, language, country, category, AI-generated tags, AI-generated summary (paid plans), sentiment classification, image and video URLs, and a duplicate flag. The product is positioned for developers, data scientists, journalists, researchers, financial analysts, news aggregator builders, AI/Machine Learning (ML) model trainers, sentiment-analysis platforms, brand-monitoring tools, content publishers, and chat/agent applications that need fresh or historical

{ "openapi": "3.1.0", "info": { "title": "NewsData.io API", "version": "1.0.0", "summary": "JSON REST API for newsdata.io — latest news, archive, crypto news, financial-market news, source directory, and article counts.", "description": "Read-only REST API. Every endpoint is `GET` and returns JSON.\n\n**Authentication.** Send your API key either as the `apikey` query-string parameter or as the `X-ACCESS-KEY` HTTP header. One of the two is required. Parameter names are case-