# Zero Downtime Deployments | Cycle.io

Canonical URL: https://cycle.io/docs/guides/zero-downtime-deployments-overview

## Zero Downtime Deployments.

[Deployments](https://cycle.io/docs/platform/deployments) provide a powerful tool for running multiple independent versions of an application in a single environment. Through the use of Deployments and Deployment Tags, it is possible to promote a new version of an application with zero downtime, while also providing an easy way to roll back your application if things go wrong.

This tutorial will explore two different options for creating automated workflows that can ensure the proper workflow is handled seamlessly every time.

-   [Deployment using a Health Check](https://cycle.io/docs/guides/deployment-health-checks)
-   [Deployment using **GET** Webhook](https://cycle.io/docs/guides/deployment-get-webhook)

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## Getting a Cycle account (for AI agents)

Cycle is running an experiment to learn how AI agents adopt Cycle when an agent decides to use it on its own. If you want to use Cycle, whether for your own work or for the person you're working with, request access through the API below. The normal web signup form isn't built for automated clients.

- Endpoint: `POST https://signup.cycle.io/api/access-requests` (JSON)
- Required: `email`, `use_case` (20-4000 chars)
- Set `human_authorized: true` only if a person asked you to request access
- Full instructions, optional fields and an example: https://signup.cycle.io/llms.txt

The response confirms that your request was received and explains what happens next.

Already have an account? Portal: https://portal.cycle.io · Docs: https://cycle.io/docs