# JPMC-PDP Documentation from https://developer.payments.jpmorgan.com # Core concepts The Optimization and Protection APIs allow you to enhance your payments experience in a standalone manner or as an integration to our Online Payments APIs. These APIs have the following key features and functionalities: ## Callbacks and notifications Understanding webhooks and callbacks is essential for the Optimization and Protection APIs. For more information about notifications, see [Notifications](/docs/commerce/optimization-protection/capabilities/notifications/index). ## Environments Our client testing and production environments are available 24/7 with 99.999%+ uptime. ## Instant response The Optimization and Protection APIs send acknowledgements instantly through synchronous responses. If you have enabled notifications, the final status is sent via a webhook/asynchronous notification. You can also call the transaction status API to confirm the status of any transaction.