1
Create an API key
In Brelio, open Configuración › Integraciones › Claves de API and click Nueva clave. Name it after the tool that will use it (for example «n8n»), tick Ver servicios and Ver profesionales, and create it.Copy the key now: Brelio shows it only once. Treat it like a password: keep it in a secret manager or an environment variable, never in code.
You need the Gestionar integraciones permission in Brelio, and your plan must include API access.
2
Save it in your shell
3
List your services
Response
4
Read the limits it carries
The same call in your language
If it fails
Every code is explained in Errors.
Next
Book an appointment
Find a free slot, book it, reschedule it and cancel it.
Authentication
Organization keys, personal keys, partner apps and MCP.