Integrating Particle.io with InfluxDB Cloud is a straightforward process that requires no additional services or customizations beyond what Particle Cloud offers. To set it up, users need to navigate to their Particle Console, click on Integrations, select Webhook, fill out the required form details, and configure the request format, including setting tags and authorization headers. Once completed, users can save their integration and access sample code to trigger the integration, making it a simple process to connect these two services.