Mock sample for your project: bng2latlong API

IP2Proxy allows instant detection of anonymous proxy, VPN, TOR exit nodes, search engine robots (SES), data center ranges (PX2-PX10), residential proxies (PX10) and VPN provider name (PX11) by IP address. It also returns the threat type of the proxy (PX9 or higher). Visit https://www.ip2location.com/web-service/ip2proxy for further information.

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.

Abstract IP geolocation API allows developers to retrieve the region, country and city behind any IP worldwide. The API covers the geolocation of IPv4 and IPv6 addresses in 180+ countries worldwide. Extra information can be retrieved like the currency, flag or language associated to an IP.

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.

Our atmosphere protects us from a hostile space radiation environment comprising high energy particles of solar and intergalactic origin. Solar radiation is significant during unpredictable and short lived solar flares and coronal mass ejections (CMEs); however, galactic cosmic radiation (GCR) is omnipresent. The GCR intensity varies with latitude, longitude, and time due to effects of solar activity on the interplanetary magnetic field, as well as the Earth's magnetic field. Space radiation collides with gases in the atmosphere, leading to a complex shower of high energy radiation, the intensity and composition of which varies spatially and temporally. Excessive exposure to radiation can damage DNA and lead to long-term health effects such as an increased risk of cancer. Resulting radiation levels at commercial aircraft altitudes are greater than at sea level due. Aircrew are classified as radiation workers in some countries; however, planning to limit their exposure, and monitoring, is generally lacking. Both real-time measurements and predictive models of radiation in the atmosphere are important to mitigate the radiation risk crew.
We host a RESTful API to models of cosmic ray induced ionising radiation in the atmosphere. The PARMA or CARI7 endpoints can be used to calculate Effective Dose or Ambient Dose Equivalent at a point.
The Route Dose API calculates the same quantities along a great circle route between two airports using CARI7.
API requests must contain a key "API-Key" in the header (see code samples). Obtain a key from here.
Help us improve the quality of our web APIs by completing our 2 minute survey here.
Amentum Pty Ltd is not responsible nor liable for any loss or damage of any sort incurred as a result of using the API.
Copyright Amentum Pty Ltd 2021.

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.

API for the Water Linked Underwater GPS. For more details: http://www.waterlinked.com
Recommended approach for connecting to a Underwater GPS via the API is:
If "GET /api/" times out, the Underwater GPS is not running (on this IP address)
If "GET /api/" responds with 200 OK check that the api version returrned (eg "v1") is supported by the client (eg: also supports "v1").
If the api version returned does not match what the client supports: give an error to the user and recommend upgrading. (Eg: response is "v2" while client only supports "v1")
If "GET /api/" responds with 301 Moved permanently. "GET /api/v1/version" to check if the kit has a version earlier than 1.5.
"GET /api/v1/version" will always respond with 200 OK on Underwater GPS earlier than 1.5 release.
Configuration API is is not considered stable and will potentially be changed

The GeoDB API focuses on getting global city and region data. Easily obtain country, region, and city data for use
in your apps!
Filter cities by name prefix, country, location, time-zone, and even minimum population.
Sort cities by name, country code, elevation, and population - or any combination of these.
Get all country regions. Get all cities in a given region.
Display results in multiple languages. RESTful API adheres to industry best-practices, including
HATEOAS-style links to facilitate paging results.
Backed by cloud-based load-balanced infrastructure for resiliency and performance!
Data is periodically refreshed from GeoNames and WikiData.
Notes:
Since the database is periodically updated, this may very rarely result in certain cities
being marked deleted (e.g., duplicates removed). By default, endpoints returning city data will exclude
cities marked deleted. However, in the unlikely event that this occurs while your app is paging through a set
of affected results - and you care about the paged results suddenly changing underneath - specify
includeDeleted=SINCEYESTERDAY (or SINCELAST_WEEK if you're really paranoid!).
Useful Resources
SDKs
Angular,
Sample App
Java
JavaScript
Swagger Docs
Usage License

The TrapStreet API finds trap streets in Google Maps, Bing Maps and OpenStreetMap data.

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.

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.

API to view feed information and download feeds from TransitFeeds.com