Mock sample for your project: Billbee API

The Catalog API allows users to search for and locate an eBay catalog product that is a direct match for the product that they wish to sell. Listing against an eBay catalog product helps insure that all listings (based off of that catalog product) have complete and accurate information. In addition to helping to create high-quality listings, another benefit to the seller of using catalog information to create listings is that much of the details of the listing will be prefilled, including the listing title, the listing description, the item specifics, and a stock image for the product (if available). Sellers will not have to enter item specifics themselves, and the overall listing process is a lot faster and easier.

Magento Commerce is the leading provider of open omnichannel innovation.

The Metadata API has operations that retrieve configuration details pertaining to the different eBay marketplaces. In addition to marketplace information, the API also has operations that get information that helps sellers list items on eBay.

The Analytics API provides data and information about a seller and their eBay business. The resources and methods in this API let sellers review information on their listing performance, metrics on their customer service performance, and details on their eBay seller performance rating. The three resources in the Analytics API provide the following data and information: Customer Service Metric – Returns data on a seller's customer service performance as compared to other seller's in the same peer group. Traffic Report – Returns data that shows how buyers are engaging with a seller's listings. Seller Standards Profile – Returns data pertaining to a seller's performance rating. Sellers can use the data and information returned by the various Analytics API methods to determine where they can make improvements to increase sales and how they might improve their seller status as viewed by eBay buyers. For details on using this API, see Analyzing seller performance.

The price is a fundamental building block for your listing on Walmart.com. You can use the price management APIs to set up and manage the price for a given item

Maintaining up-to-date inventory for your items on Walmart.com ensures a great experience for your customers and greater sales opportunities for you.

Hereafter is the documentation of the private API of Pims: Pointages Intelligents pour le Monde du Spectacle. This API is designed for 3rd-party softwares, editors and partners. Its main purpose is to give access the core data of a Pims customer (i.e. events, ticket counts and promotions).
Authentication
The API uses basic access authentication, meaning you will need a username and password to get authorized.
As each customer in Pims has its own domain (e.g. caramba.pims.io, gdp.pims.io...), each credentials will be valid for one domain/customer only. If you need dedicated credentials for one domain, please contact us. (In any case, we will need an explicit agreement from the customer before we create these credentials.)
To make your life easy, you can try all endpoints with the public credentials below, pointing to our demo domain:
Base path: https://demo.pims.io/api
Username: demo
Password: q83792db2GCvgYVdKpU3yG3R
Response format
The API returns JSON and matches the HAL specification. The Content-Type of each response will be application/hal+json, unless an error occurs.
Please note that this documentation describes all responses “as if” they were plain JSON. The specificities of HAL are ignored on purpose, in order to remain compact and avoid repetition.
So when you read in the doc:
{"id" : 123,"property1" :"Lorem ipsum","object" : {"id" : 456,"property2" : 7.89
}
}
... you'll get in the Real World®:
{"id" : 123,"property2" :"Lorem ipsum","embedded" : {"object" : {"id" : 456,"property2" : 7.89,"links" : {"self" : {"href" :"https://api.mydomain.com/other-item/456"
}
}
}
}"_links" : {"self" : {"href" :"https://api.mydomain.com/item/123"
}
}
}
Errors
Errors return JSON too and tries to match the Problem Details for HTTP APIs specification. If it does not match this spec, that's either a bug or a compatibility issue. Please contact us to solve the problem.
The Content-Type of errors will be application/problem+json. The content will match the following JSON:
Filtering and sorting
Every textual filter (e.g. /events?label=U2) and/or sort (e.g. /events?sort=label) performed with the API uses UTF8UNICODECI collation, meaning it is:
Case insensitive: “Chloé” will be considered the same as “CHLOÉ”;
Diacritic insensitive: “Chloé” will be considered the same as “Chloe”.
When performing a sort, it will always be ascending by default. To make it descending, just use a minus sign (-) in front of the parameter value (e.g. /events?sort=-label).
I18n
In responses, some labels can be translated (e.g. promotion types, event input types, etc.). These translatable labels are clearly indicated in the documentation below.
By default, they will be displayed in English, but you can change this behaviour via the Accept-Language header. E.g., use fr as a value for French.
PHP SDK
We provide a simple yet convenient SDK for the PHP language, see the Github page of the project.
And now?
Generaly, you will start by fetching one or more events. An event can be anything that occurs in one venue at one given date and time: a concert, a play, a match, a conference, etc. Additionnally, you can explore the series: a series is just a group of events (e.g. a tour or a festival).
Once you retrieved the events you were interested in, you can look for the sales ( ticket counts):
Get a quick overview with /events/:id/ticket-counts
Or get a full insight by calling these endpoints:
/events/:id/categories
/events/:id/channels
/events/:id/ticket-counts/detailed
Eventually, you may also want to fetch the promotions. A promotion can be anything meant to leverage the sales: ads, marketing campaigns, buzz or news around the event, etc. A promotion can be linked to any combination of events and/or series.

papinet API is a global initiative for the Forst and Paper supply chain.

The Account API gives sellers the ability to configure their eBay seller accounts, including the seller's policies (the Fulfillment Policy, Payment Policy, and Return Policy), opt in and out of eBay seller programs, configure sales tax tables, and get account information. For details on the availability of the methods in this API, see Account API requirements and restrictions.

The Marketing API retrieves eBay products based on a metric, such as Best Selling, as well as products that were also bought and also viewed.