PIPELINEGlossary · Systems and interfaces
What is an API?
An API is a defined interface through which two programs exchange data without a person typing in between. It defines which requests are allowed and in what form responses are returned.
01 — Context
API (interface) in detail
The practical benefit: systems that know nothing about each other can be connected. An appointment booking writes to the calendar, a form creates a contact in the CRM, an invoice is generated from a completed order.
Whether an integration is possible depends on whether the respective system offers a documented interface. Where none exists, there's usually a workaround — but that requires effort and should be clarified before the project starts.
02 — Practice
What this means for small businesses
The time-critical part of an integration is rarely the technology, but obtaining access. Anyone who clarifies early on who in the business manages which credentials noticeably shortens the project timeline.
03 — Questions
Frequently asked questions
Does an API integration cost a lot?
It mainly depends on how well the interface is documented. Common systems with clean documentation are manageable, exotic or outdated systems can be time-consuming.
Is it secure?
With proper setup, yes — access is via dedicated access keys with limited permissions that can be revoked at any time.
04 — Continue
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