Mercury Retrograde API Alternatives (2026)

We offer a free API that provides sunset and sunrise times for a given latitude and longitude. Please note that attribution is required if you use our API. Ours is a very simple REST api, you only have to do a GET request to https://api.sunrise-sunset.org/json.

High Energy Physics info. system. Inspire exposes an API (Application Programming Interface) for querying most aspects of its holdings and provides responses in either XML, Enhanced MARCXML or JSON.

The OSF serves as a repository and archive for study designs, materials, data, manuscripts, or anything else associated with your research during the research process. Every project and file on the OSF has a permanent unique identifier, and every registration (a permanent, time-stamped version of your projects and files) can be assigned a DOI. You can use the OSF to measure your impact by monitoring the traffic to projects and files you make public. With the OSF you have full control of what parts of your research are public and what remains private.

Access the world's Open Access research papers. A unique and free API providing real-time machine access to metadata and full texts of research papers in CORE. One API for accessing data across all data providers. Perfect for developing and running innovative applications that need global access to research papers.

The International Space Station is moving at close to 28,000 km/h so its location changes really fast! Where is it right now? ISS astronauts, current location API. You get up to date information of current location, the pass time and current number of people travelling in the space.

Access current weather data for any location including over 200,000 cities. You can get Current Weather Data of your city, or sort it a little to hourly forecast for next 4 days. One call api, that lets you shift, sort and filter days. Also allows you to perform bulk downloading.

protocols.io is the #1 open access repository for science methods. The leading platform for data management and protocol sharing. Store, organize, modify, and publish your work all in one place.

Water quality and level info for rivers and lakes. This site serves USGS water data External Link via automated means using web services External Link and extensible markup language (XML) External Link, as well as other popular media types. Services are invoked with the REST External Link protocol. These services designed for high fault tolerance and very high availability.

A free, open, dataset about research and scholarly activities. SHARE is a higher education initiative whose mission is to maximize research impact by making research widely accessible, discoverable, and reusable. To fulfill this mission SHARE is building a free, open, data set about research and scholarly activities across their life cycle.

Get up-to-date weather information for any location, including 10-day forecast, wind, atmosphere, astronomy conditions, and more. You can lookup weather by location (city name) or lat/long.

Company, vehicle, launchpad and launch data. Want to know a specific aircrafts launch year, unic code, utc number or local timing? Or interested in rocket technology and curious about the number of enginers in an API? Go ahead. Try the rocket API and much more by SpaceX.

Friendly way of accessing various aurora hunting data: current space weather conditions, weather, skycams, satellite images, and archived information from the past 15 years.