Mock sample for your project: ChannelShipper & Royal Mail Public API

Just Eat API
Just Eat offers services for our various business partners and our consumer applications.
How you interact with the API depends on the services you wish to interact with.
Security
HTTPS
All api calls and callbacks require HTTPS. Your service will need a valid SSL certificate and be accessible via the standard SSL port (port 443).
Making an API request
Some API calls require an API key, to authenticate the partner calling the API.

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.

This API is used to retrieve seller payouts and monetary transaction details related to those payouts.

The Charity API allows third-party developers to search for and access details on supported charitable organizations.

Use the Fulfillment API to complete the process of packaging, addressing, handling, and shipping each order on behalf of the seller, in accordance with the payment method and timing specified at checkout.

Import your orders, retrieve your orders and generate labels.

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.

The Analytics API retrieves call-limit data and the quotas that are set for the RESTful APIs and their associated resources. Responses from calls made to getRateLimits and getUerRateLimits include a list of the applicable resources and the "call limit", or quota, that is set for each resource. In addition to quota information, the response also includes the number of remaining calls available before the limit is reached, the time remaining before the quota resets, and the length of the "time window" to which the quota applies. The getRateLimits and getUserRateLimits methods retrieve call-limit information for either an application or user, respectively, and each method must be called with an appropriate OAuth token. That is, getRateLimites requires an access token generated with a client credentials grant and getUserRateLimites requires requires an access token generated with an authorization code grant. For more information, see OAuth tokens. Users can analyze the response data to see whether or not a limit might be reached, and from that determine if any action needs to be taken (such as programmatically throttling their request rate). For more on call limits, see Compatible Application Check.

This is the koomalooma Partner API. koomalooma is the first Loyalty BPaaS (Business Process as a Service) for mobile and web companies. With koomalooma merchants issue points for actions their customers / users make on your mobile or web store, for example a purchase or a referral. koomalooma takes care of all the rest, from signing up users, keeping track of points and delivering rewards in over 80 countries. koomalooma offers an easy to integrate API and web backend to configure loyalty campaigns and track performance. You can find more at http://support.koomalooma.com