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OGC API - Coverages is a geospatial data service specification developed by the Open Geospatial Consortium (OGC), which aims to provide a standardized interface for continuous coverage data such as raster data and spatiotemporal grids. It defines how to access, query and process coverage data through a RESTful API, supports data types such as raster data band information and raster pixels, and is widely used in remote sensing, meteorology, oceanography and other fields.

**Google Earth Engine (GEE) **is a cloud-based geospatial analysis platform provided by Google, which can use earth observation data for large-scale analysis and visualization. Its feature is that it can efficiently and quickly process large-capacity, multi-dimensional information such as remote sensing images, geospatial data, and climate data in the cloud. Users can access rich archival resources from major satellite data providers such as NASA, USGS, and ESA for free, and write scripts using programming languages (JavaScript or Python), which are widely used in many fields such as surface change analysis, climate modeling, agricultural monitoring, and forest management.

CARTO Tiles API is an interface provided by the CARTO platform for efficiently processing and visualizing geospatial data. By splitting large datasets into pre-rendered tiles, it optimizes map loading speed and browsing experience, supporting various tile types such as dynamic and aggregated tiles. Built on the OGC API-Tiles standard, it integrates with CARTO’s declarative language, deck.gl, enabling flexible map styling and interactive application development.

TomTom Maps SDK / Web API is a toolkit integrated into web and mobile applications to build location-based service experiences. It provides map display, route planning, style customization, and data analysis capabilities, supporting multi-platform usage. The SDK allows developers to display multiple entity locations simultaneously on maps via API calls and leverages millions of data points collected by TomTom for efficient development. Compatible with both web-based and native mobile application platforms, it is suitable for various scenarios such as automotive navigation, public sector decision-making, autonomous driving, and logistics management.

MapQuest API is an application programming interface that provides location-based services such as geocoding, route planning, and POI search. Developers can invoke its services by sending HTTP requests, for example, to convert addresses into coordinates or calculate driving routes. It supports multiple map data sources (e.g., OpenStreetMap, Bing Maps) and allows free access to basic services through an API key. This API is commonly used in scenarios like logistics optimization and location sharing. For instance, one organization utilized it to reduce meal delivery route planning time and costs.

Esri GeoEvent Server is an enterprise-level software provided by Esri, designed for real-time processing, analysis, and dissemination of event-based geospatial data streams. It can connect to multiple real-time data sources, perform real-time analysis on event data through filters and processors, and deliver processed results to client applications, feature services, dashboards, or other destinations. This technology is commonly used in smart cities, traffic monitoring, and other scenarios requiring real-time responsiveness, helping users quickly adapt to dynamic changes.

3D Tiles service is a map slicing service built based on the 3D Tiles specification developed by Cesium. It is designed to efficiently visualize and distribute large-scale three-dimensional spatial data and is an important technical foundation for modern Web GIS. It is mainly used to achieve high-speed rendering and interaction in Web browsers for complex data such as BIM, CIM, point clouds, three-dimensional models, and terrain. The client can browse interactively through visualization engines such as CesiumJS, while the server is responsible for organizing and distributing data hierarchically based on the 3D Tiles format. Through spatial segmentation technology based on LOD (level of detail) and streaming transmission mechanism, the 3D Tiles service achieves lightweight and fast data loading, which is especially suitable for city-level models and point cloud data, and is widely used in smart cities, urban planning, disaster prevention, infrastructure management and other fields.

Web Map Tile Service (WMTS), also known as Web Map Tile Service, is a solution that uses pre-generated tiles to provide electronic map services. The WMTS standard defines some operations that allow users to access tile maps. WMTS provides a standardized solution for publishing digital map services using a predefined tile method, making up for the inability of WMS (Web Map Service) to provide tiled maps. The purpose of the WMTS service is to provide services for tile maps.

Mapbox API is a development interface provided by a powerful geolocation data platform, designed to help developers implement highly customized map display, geocoding, route planning, navigation, data visualization and other functions in their applications. Mapbox provides a series of flexible development tools and APIs, supports mainstream development environments such as Web, iOS, and Android, and facilitates developers to achieve a consistent map experience on different platforms.

Bing Maps API is a map and location information service platform provided by Microsoft. It is aimed at developers and is used to integrate map display, route search, geocoding and other functions into web applications or mobile applications. It is as famous as Google Maps API and is widely used in enterprises and business systems.