Directory

Canada's national consumer portal for MLS listings, operated by CREA's REALTOR.ca Canada Inc., with licensed data syndication through the DDF

Official online access to Québec's land register: index of immovables, registered deeds and rights by lot number, run by the provincial government

Volunteer-run decentralized bibliographic database of economics research, fed by institutional archives and served through IDEAS, EconPapers, the Author Service, CitEc, NEP and MPRA

Literature-discovery app that grows collections of papers through citation and author networks and recommends related work, with a free-forever tier

Posit's open-source integrated development environment for R, with console, editor, plots, environment panes, Quarto/R Markdown authoring and Python via reticulate

Citation-analysis platform whose Smart Citations show whether later papers support, contrast or merely mention a claim, with an AI assistant and reference checking

Web scraping API with anti-bot bypass, JavaScript rendering, cloud browsers, screenshots, AI extraction and a crawler, billed in credits per request

Free AI-assisted literature search from Ai2 with an Academic Graph API, recommendations and downloadable datasets of papers, authors and citations

API that returns live search-engine result pages from Google and other engines as structured JSON, with localization, device and search-type parameters

Elsevier-owned preprint and working-paper platform with discipline networks, author pages, download rankings and institutional research paper series, free to post and read

Open-source backend platform built around a dedicated PostgreSQL database with auto-generated APIs, authentication, file storage, realtime subscriptions and edge functions

Salesforce's visual analytics platform: Tableau Desktop authoring (now with a free edition), Tableau Cloud and Server for sharing, and Tableau Next for CRM analytics

Cross-platform task manager from Doist with natural-language scheduling, projects, labels, filters, shared projects and a public REST API

Front-end cloud from the makers of Next.js that deploys web applications from git with preview environments, serverless and edge functions and a global CDN

The Internet Archive's public web archive for browsing historical snapshots of web pages, with Save Page Now, Availability, CDX and Memento APIs

ML experiment tracking, sweeps, artifacts and model registry plus Weave for LLM tracing and evaluation, now sold by CoreWeave within its Forge platform with a free academic tier

Wolfram Research's proprietary technical computing system built on the Wolfram Language, with notebooks, symbolic and numeric computation, visualization, machine learning and curated data

Free access to World Bank development indicators by country and year through a web portal, bulk downloads and a public REST API

Video meetings and webinar platform, now packaged as Zoom Workplace with team chat, phone, whiteboard, AI Companion and developer APIs and SDKs

Web-data company behind Scrapy offering Zyte API for ban-resistant fetching, browser rendering and automatic extraction, plus Scrapy Cloud for hosting spiders