Mock sample for your project: Gitlab API

This API retrieves the latest currency exchange rate, against the US Dollar, for the given three-letter international currency code. These currency rates are compiled from many global sources and are updated several times per day.

This API provides area code information for a given telephone number.

User Recommendation Engine and Chat Network

AppVeyor is a hosted continuous integration service which runs on Microsoft
Windows. The AppVeyor REST API provides a RESTful way to interact with the
AppVeyor service. This includes managing projects, builds, deployments,
and the teams that build them.
Additional help and discussion of the AppVeyor REST API is available at
http://help.appveyor.com/discussions
This Swagger definition is an unofficial description of the AppVeyor
REST API maintained at https://github.com/kevinoid/appveyor-swagger
Please report any issues or suggestions for this Swagger definition at
https://github.com/kevinoid/appveyor-swagger/issues/new
API Conventions
Fields which are missing from update operations (PUT requests) are
typically reset to their default values. So although most fields are not
technically required, they should usually be specified in practice.

This API provides a similarity key used to match with other similar full name data, including for purposes of deduplication, fuzzy matching, or merging of datasets. A much higher match rate will be achieved by matching on the similarity key rather than the data itself. This API is for full name data where first and last name are in the same field. Use the Full Name Parsed Similarity Key API for first and last name data that are in separate fields.

The platform for modern developers
GitLab unifies issues, code review, CI and CD into a single UI

This API provides a similarity key used to match with other similar street address data, including for purposes of deduplication, fuzzy matching, or merging of datasets. A much higher match rate will be achieved by matching on the algorithmically generated similarity key rather than the data itself.

An OpenAPI description of the OpenLink Smart Data Bot REST API v1

Introduction
Api2Pdf is a powerful PDF generation API with no rate limits or file size constraints. Api2Pdf runs on AWS Lambda, a serverless architecture powered by Amazon to scale to millions of requests while being up to 90% cheaper than alternatives. Supports wkhtmltopdf, Headless Chrome, LibreOffice, and PDF Merge. You can also generate barcodes with ZXING (Zebra Crossing).
SDKs & Client Libraries
We've made a number of open source libraries available for the API
Python: https://github.com/api2pdf/api2pdf.python
.NET: https://github.com/api2pdf/api2pdf.dotnet
Nodejs: https://github.com/api2pdf/api2pdf.node
PHP: https://github.com/Api2Pdf/api2pdf.php
Ruby: (Coming soon)
Authorization
Create an account at portal.api2pdf.com to get an API key.
Authorize your API calls
GET requests, include apikey=YOUR-API-KEY as a query string parameter
POST requests, add Authorization to your header.
For more advanced usage and settings, see the API specification below.

Domain API (WHOIS, Check, Batch)

Appwrite backend as a service cuts up to 70% of the time and costs required for building a modern application. We abstract and simplify common development tasks behind a REST APIs, to help you develop your app in a fast and secure way. For full API documentation and tutorials go to https://appwrite.io/docs