Mock sample for your project: httpbin.org API

Containers are virtual software objects that include all the elements that an app needs to run. A container has the benefits of resource isolation and allocation but is more portable and efficient than, for example, a virtual machine.
This documentation describes the IBM Containers API, which is based on the Docker Remote API. The API provides endpoints that you can use to create and manage your single containers and container groups in Bluemix. Endpoints are summarized under the following tags:
Authentication: Retrieve and refresh your TLS certificates.
Private Docker images registry: Create your own private Docker images registry in Bluemix by setting a namespace for your organization.
Images: View, build, and push your images to your private Bluemix registry so you can use them with IBM Containers. You can also scan your container images with the Vulnerability Advisor against standard policies set by the organization manager and a database of known Ubuntu issues.
Single Containers: Create and manage single containers in Bluemix. Use a single container to implement short-lived processes or to run simple tests as you develop an app or service. To make your single container available from the internet, review the Public IP addresses endpoints.
Container Groups: Create and manage your container groups in Bluemix. A container group consists of multiple single containers that are all created from the same container image and as a consequence are configured in the same way. Container groups offer further options at no cost to make your app highly available. These options include in-built load balancing, auto-recovery of unhealthy container instances, and auto-scaling of container instances based on CPU and memory usage. Map a public route to your container group to make your app accessible from the internet.
Public IP addresses: Use these endpoints to request public IP addresses for your space. You can bind this IP address to your container to make your container accessible from the internet.
File shares: Create, list and delete file shares in a space. A file share is a NFS storage system that hosts Docker volumes.
Volumes: Create and manage container volumes in your space to persist the data of your containers.
Each API request requires an HTTP header that includes the 'X-Auth-Token’ and 'X-Auth-Project-Id’ parameter.
X-Auth-Token: The JSON web token (JWT) that you receive when logging into the Bluemix platform. It allows you to use the IBM Containers REST API, access services, and resources. Run cf oauth-token to retrieve your access token information.
X-Auth-Project-Id: The unique ID of your organization space where you want to create or work with your containers. Run cf space --guid, where is the name of your space, to retrieve your space ID.
For further information about how containers work in the IBM Containers service, review the documentation under https://new-console.ng.bluemix.net/docs/containers/container_index.html.

This API provides geographic information for a global telephone number, including city and country information, primary languages spoken, and mobile device identification.

This API retrieves the current time for a city or geographic location around the globe.

Airbyte Configuration API
https://airbyte.io.
This API is a collection of HTTP RPC-style methods. While it is not a REST API, those familiar with REST should find the conventions of this API recognizable.
Here are some conventions that this API follows:
All endpoints are http POST methods.
All endpoints accept data via application/json request bodies. The API does not accept any data via query params.
The naming convention for endpoints is: localhost:8000/{VERSION}/{METHODFAMILY}/{METHODNAME} e.g. localhost:8000/v1/connections/create.
For all update methods, the whole object must be passed in, even the fields that did not change.
Change Management:
The major version of the API endpoint can be determined / specified in the URL localhost:8080/v1/connections/create
Minor version bumps will be invisible to the end user. The user cannot specify minor versions in requests.
All backwards incompatible changes will happen in major version bumps. We will not make backwards incompatible changes in minor version bumps. Examples of non-breaking changes (includes but not limited to...):
Adding fields to request or response bodies.
Adding new HTTP endpoints.

Microsoft Visual Studio App Center API

This API provides the two-letter state abbreviation (or the province abbreviation for Canada) for the purposes of standardizing state name data, improving query results, analytics, and data merging.

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.

This documentation describes the Gitea API.

API of the Patch application on cloud.redhat.com
Syntax of the filtername] query parameters is described in [Filters documentation

This API provides current weather information for US Cities, including temperatures, wind speeds, wind direction, relative humidity, and visibility.

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.