Mock sample for your project: Patchman-engine API

The REST API for LGTM provides data so that you can customize how you integrate LGTM analysis into your workflow. It includes the following resources:
/ (API root)—get version information or download the specification in OpenAPI format.
/projects (Projects)—list projects, get a summary of the current status for a project, or add new projects.
/analyses (Analyses)—get a summary of results, download all the alerts, or trigger analysis for a specific commit.
/codereviews (Code reviews)—trigger code review for a patch, and view the results.
/operations (Operations)—get information about long-running tasks, for example, analyses or code reviews that you've requested.
/snapshots (Snapshots)—download and upload databases representing a snapshot of a codebase.
/queryjobs (Query jobs)—submit queries to evaluate against existing projects, and download their results.
/system (System)—get information on the health or usage of the system.
For an overview and getting started topics, see API for LGTM.

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.

The Computer Vision API provides state-of-the-art algorithms to process images and return information. For example, it can be used to determine if an image contains mature content, or it can be used to find all the faces in an image. It also has other features like estimating dominant and accent colors, categorizing the content of images, and describing an image with complete English sentences. Additionally, it can also intelligently generate images thumbnails for displaying large images effectively.

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

This is an online openapi generator server. You can find out more at https://github.com/OpenAPITools/openapi-generator.

Base API URL: https://api.configcat.com
If you prefer the swagger documentation, you can find it here: Swagger UI.
The purpose of this API is to access the ConfigCat platform programmatically.
You can Create, Read, Update and Delete any entities like Feature Flags, Configs, Environments or Products within ConfigCat.
The API is based on HTTP REST, uses resource-oriented URLs, status codes and supports JSON
and JSON+HAL format. Do not use this API for accessing and evaluating feature flag values. Use the SDKs instead.
OpenAPI Specification
The complete specification is publicly available here: swagger.json.
You can use it to generate client libraries in various languages with OpenAPI Generator or
Swagger Codegen to interact with this API.
Authentication
This API uses the Basic HTTP Authentication Scheme.
Throttling and rate limits
All the rate limited API calls are returning information about the current rate limit period in the following HTTP headers:
| Header | Description |
| :- | :- |
| X-Rate-Limit-Remaining | The maximum number of requests remaining in the current rate limit period. |
| X-Rate-Limit-Reset | The time when the current rate limit period resets. |
When the rate limit is exceeded by a request, the API returns with a HTTP 429 - Too many requests status along with a Retry-After HTTP header.

Admin API of the Otoroshi reverse proxy

RESTful API of Request Baskets service.
Request Baskets is an open source project of a service to collect HTTP requests and inspect them via RESTful
API or web UI.
Check out the project page for more detailed description.

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

A simple HTTP Request & Response Service. Run locally: $ docker run -p 80:80 kennethreitz/httpbin

The Spell Check API - V7 lets you check a text string for spelling and grammar errors.