Mock sample for your project: OpenAQ API

Since 2006, Gisgraphy is a free, open source framework that offers the possibility to do geolocalisation and geocoding via Java APIs or REST webservices. Because geocoding is nothing without data, it provides an easy to use importer that will automatically download and import the necessary (free) data to your local database (OpenStreetMap, Geonames and Quattroshapes: more than 100 million entries). You can also add your own data with the Web interface or the importer connectors provided. Gisgraphy is production ready, and has been designed to be scalable(load balanced), performant and used in other languages than just java : results can be output in XML, JSON, PHP, Python, Ruby, YAML, GeoRSS, and Atom. One of the most popular GPS tracking System (OpenGTS) also includes a Gisgraphy client...Gisgraphy is a framework. As a result it's flexible and powerful enough to be used in a lot of different use cases. read more
if you use the premium servers, you can use the api key to test the webservices

Furkot provides Rest API to access user trip data.
Using Furkot API an application can list user trips and display stops for a specific trip.
Furkot API uses OAuth2 protocol to authorize applications to access data on behalf of users.

A simple API to get the current time based on a request with a timezone.

IP2Location web service providing a service to do a reverse lookup of an IP address to an ISO3166 country code, region or state, city, latitude and longitude, ZIP/Postal code, time zone, Internet Service Provider (ISP) or company name, domain name, net speed, area code, weather station code, weather station name, mobile country code (MCC), mobile network code (MNC) and carrier brand, elevation, usage type, address type and IAB category. There are also 7 categories of additional add-on response fields supported such as metro, olson time zone, translations and more. Refer to https://www.ip2location.com/web-service/ip2location for further information.

The Google My Business API provides an interface for managing business location information on Google.

The Maps API web services suite offers the following APIs:
Raster
The Maps Raster API renders map data that is divided into gridded sections called tiles. Tiles are square images (png or jpg format) in various sizes which are available at 19 different zoom levels, ranging from 0 to 20. For zoom level 0, the entire earth is displayed on one single tile, while at zoom level 20, the world is divided into 2 40 tiles.
Vector
Similar to Maps Raster API, the Maps Vector API serves data on different zoom level ranging from 0 to 22. For zoom level 0, the entire earth is displayed on one single tile, while at zoom level 22, the world is divided into 2 44 tiles.
The Maps Vector Service delivers geographic map data packaged in a vector representation of squared sections called vector tiles. Each tile includes pre-defined collections of map features (points, lines, road shapes, water polygons, building footprints, ect.) delivered in one of the specified vector formats. Format of the tile is formally described using protobuf schema.

Open API spec for Ideal Postcodes API (api.ideal-postcodes.co.uk)

Global marine weather data from multiple sources in one single API with hourly resolution. Get your API key by visiting the Storm Glass web site.

Open Source GPS Tracking Platform

Positioning API accepts requests with radio network measurements and replies with corresponding location estimate. For more details and examples, see Developer's Guide. Cellular measurements are given in terms defined in 3GPP and 3GGP2 specifications, see the corresponsing documentation at http://www.3gpp.org.
Breaking changes from v1:
JSON fields
altaccuracy, baselat, baselng, cellparams, pilotpower, pnoffset, powrx, rxlevel,
have been deprecated and replaced with
altAccuracy, baseLat, baseLng, cellParams, pilotPower, pnOffset, rss, rxLevel
respectively.
Dependent parameters combined as a subobject.
CDMA, GSM, WCDMA, TD-SCDMA and LTE local identification parameters for serving cell moved under localId property.
GSM neighbor global ID: lac and cid for neighbor cell moved under globalIdentity property.

Routing consists of the following service:
Calculate Route
Calculates a route between an origin and a destination, passing through waypoints (if specified). Additional routing parameters like traffic, avoidance conditions, departure/arrival time etc. can be taken into account.
Calculate Reachable Range
Calculates a set of locations that can be reached from the origin point, subject to the available fuel or energy budget that is specified in the request.

The API ecotaco allows you to connect, create an account,
manage your credit cards and order rides.
Authentication
Ecotaco API use a system of application key and authentification token.
Application key :
The application key is generated by Ecota.co and unique to an application.
Before accessing EcoTa.co APIs, you need to register your application. Please supply the following information to [email protected]:
Application name
Company (if appropriate)
Contact name, phone and address
Contact email
Is this a web application, a desktop application, or an application running on a device?
Short description of your application
It must be passed on request : "accounts -> login", "accounts -> facebook login" and "accounts -> register" .
Authentification token :
The authentification token is retrieved at login or register of an user.
It must be passed in request for authenticate action in Authorization HTTP header.
Example :
Authorization: Token token=e55887022c1aca4c86abcc49e85ceb8a0c855d2af4d9fac75c08040a583dcde4
Language
On some of our resources, we filter the content displayed based on the Accept-Language header.
If the language is not defined or if we don't use the language defined in this header, we automatically use French as the default language.
EcoTa.co currently support two languages: English, French. ("en" and "fr")
Encoding
All requests and answers on EcoTa.co are in UTF-8.