Mock sample for your project: LetMC Api V2, Free (Tier 1) API

Please make sure you use the correct version of the APIs for your use case. To find out the appropriate version, go to the API Docs drop down on the menu.

Documentation of the Billbee REST API to connect a Billbee account to external aplications.
Endpoint
The Billbee API endpoint base url is https://app.billbee.io/api/v1
Activation
You have to enable the API in the settings of your Billbee account. In addition you need a Billbee API Key identifying the application you develop. To get an API key, send a mail to [email protected] and send us a short note about what you are building.
Authorization & security
Because you can access private data with the Billbee API, every request has to be sent over https and must
Contain a valid API Key identifying the application/developer. It has to be sent as the HTTP header X-Billbee-Api-Key
Contain a valid user login with billbee username and api password in form of a basic auth HTTP header
Throttling
Each endpoint has a throttle of max 2 requests per second per combination of API Key and Billbee user.
When you exceed these 2 calls, the API will return a HTTP 429 status code

Please make sure you use the correct version of the APIs for your use case. To find out the appropriate version, go to the API Docs drop down on the menu.

The REST API of BeezUP system
Overview
The REST APIs provide programmatic access to read and write BeezUP data.
Basically, with this API you will be able to do everything like you were with your browser on https://go.beezup.com !
The main features are:
Register and manage your account
Create and manage and share your stores with your friends/co-workers.
Import your product catalog and schedule the auto importation
Search the channels your want to use
Configure your channels for your catalogs to export your product information:
cost and general settings
category and columns mappings
your will be able to create and manage your custom column
put in place exlusion filters based on simple conditions on your product data
override product values
get product vision for a channel catalog scope
Analyze and optimize your performance of your catalogs on all yours channels with different type of reportings by day, channel, category and by product.
Automatize your optimisation by using rules!
And of course... Manage your orders harvested from all your marketplaces:
Synchronize your orders in an uniformized way
Get the available actions and update the order status
...and more!
Authentication credentials
The public API with the base path /v2/public have been put in place to give you an entry point to our system for the user registration, login and lost password. The public API does not require any credentials.
We give you the some public list of values and public channels for our public commercial web site www.beezup.com.
The user API with the base path /v2/user requires a token which is available on this page:
https://go.beezup.com/Account/MyAccount
Things to keep in mind
API Rate Limits
The BeezUP REST API is limited to 100 calls/minute.
Media type
The default media type for requests and responses is application/json. Where noted, some operations support other content types. If no additional content type is mentioned for a specific operation, then the media type is application/json.
Required content type
The required and default encoding for the request and responses is UTF8.
Required date time format
All our date time are formatted in ISO 8601 format: 2014-06-24T16:25:00Z.
Base URL
The Base URL of the BeezUP API Order Management REST API conforms to the following template.
https://api.beezup.com
All URLs returned by the BeezUP API are relative to this base URL, and all requests to the REST API must use this base URL template.
You can test our API on https://api-docs.beezup.com/swagger-ui\\
You can contact us on gitter, #BeezUP/API

This document describes the Qualpay Payment Gateway API.

Magento Commerce is the leading provider of open omnichannel innovation.

Import your orders, retrieve your orders and generate labels.

Polls is a simple API allowing consumers to view polls and vote in them.

The Negotiations API gives sellers the ability to proactively send discount offers to buyers who have shown an "interest" in their listings. By sending buyers discount offers on listings where they have shown an interest, sellers can increase the velocity of their sales. There are various ways for a buyer to show interest in a listing. For example, if a buyer adds the listing to their Watch list, or if they add the listing to their shopping cart and later abandon the cart, they are deemed to have shown an interest in the listing. In the offers that sellers send, they can discount their listings by either a percentage off the listing price, or they can set a new discounted price that is lower than the original listing price. For details about how seller offers work, see Sending offers to buyers.

Who is this for?
This documentation is for developers creating their own integration with Feedback's API. If you are doing a standard integration, there's a really easy Javascript integration that you should know about before you go to the effort of building your own integration.
Authentication
API calls generally need to be authenticated. Generate an API Key at https://feedback.pendo.io/app/#/vendor/settings?section=integrate. This key should then be added to every request as a request header named 'auth-token' (preferred), or as a query parameter named 'auth-token'.
Endpoint
API endpoint is https://api.feedback.eu.pendo.io / https://api.feedback.us.pendo.io depending where your datacenter is located.
Notes
API endpoints are being added to this documentation as needed by customers. If you don't see an endpoint you need please contact support and if it exists we'll publish the docs here. The 'try it out' feature on this documentation page will probably be blocked by your browser because the Access-Control-Allow-Origin header has its value set by the Feedback server depending on your hostname.
Generating client code
This documentation is automatically generated from an OpenAPI spec available here. You can use Swagger to auto-generate API client code in many languages using the Swagger Editor

A product library is a representation of all the items that can be
displayed, put in a shopping cart and sold to a customer. Items may be
either producs or discounts.
A product is a synthetic construct, wrapping one or more variants (which is
the actual item being sold) Variants expresses different variations of
properties such as for example price, size or color. A discount will reduce
the total amount charged in a shopping cart. It can be used per item line,
or on the whole cart. It may reduce the affected amount by a percentage, or
by a fixed amount.
Together, the above types of entities makes up a complete library. The
library can be fetched as a whole through the library endpoint, where each
consecutive change applied to the library is available. Once the full
library is retrieved, only later events needs to be fetched to keep the
client up to date with the server
All path patterns "/organizations/{organizationUuid}/" can be replaced
with "/organizations/self/" for convenience as all endpoints are for
authorized users.

Note: This is a (Limited Release) API available only to select developers approved by business units. The Feed API provides the ability to download TSV_GZIP feed files containing eBay items and an hourly snapshot file of the items that have changed within an hour for a specific category, date and marketplace. In addition to the API, there is an open source Feed SDK written in Java that downloads, combines files into a single file when needed, and unzips the entire feed file. It also lets you specify field filters to curate the items in the file.