Glossary · Application Programming Interface · REST API
API: definition
An API (Application Programming Interface) is a documented way for one piece of software to read or send data to another, automatically, without anyone typing it in again.
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What an API is used for
An API lets your tools talk to each other: your online shop sends orders to your accounting, your warehouse updates stock on your website, a marketplace reads your prices. Each exchange follows rules described in the API's documentation, and access is protected by keys.
A webhook is the API's counterpart: instead of your software asking for news, the other tool sends a message the moment something happens, such as a new order or a stock change.
Choosing software with an open API
For a small business, an open API is insurance for the future: even if no ready-made connector exists today, a developer can link your software to another tool later. Check what the API covers, whether it is documented and how access is secured.
The Eazyclick API
The Full e-commerce module provides a REST API for products, stock and orders, documented in French and English, with read or write keys and signed webhooks for every new order or stock change. It is for building your own connection: no ready-made connector is included.
Related terms
- SaaS SaaS (Software as a Service) is software used online, on a subscription, with nothing to install: the provider hosts it, keeps it up to date and looks after its security.
- Business management software Business management software is a program that helps a company organise its administrative and sales work: customers, quotes, invoices, payments, stock and scheduling.
- ERP An ERP (Enterprise Resource Planning) system is software that brings a company's management functions (customers, sales, purchasing, invoicing, stock, scheduling) together around a single database.
- AI agent An AI agent is an artificial intelligence program that carries out several steps on its own to reach a goal (reading a request, looking up information, preparing a reply, proposing it), within limits set by the business.
Further reading
Questions about API
What is the difference between an API and a webhook?
With an API, your software asks for data when it needs it. With a webhook, the other software sends the data as soon as an event happens.
Do I need a developer to use an API?
Usually, yes. An API is a building block for connecting tools; a developer or an integration tool turns it into a working connection.
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