# Shared Access Tiers
source: https://developer.mastercard.com/transaction-notifications/documentation/access-tiers/index.md

### Sandbox

###### Build and test prototype with simulated transactions

##### Free

* Enroll test cards
* Receive test transactions with standard payload
* Retrieve test transaction data via Undelivered Notifications API
* **No prerequisite**, you can start today
* [Get Started →](https://developer.mastercard.com/dashboard)

### Trial

###### Launch your project with limited capability

##### Free up to 6 months

* Enroll up to 10 real cards
* Receive real time transactions with customizable payload via webhook endpoint
* Retrieve real transaction data via Undelivered Notifications API
* Ability to filter notifications events
* Clearing API
* **Prerequisite:**   
  a. Successful test in Sandbox Tier   
  b. Available and approved Use Case   
  c. Signed Basic Agreement
* [Submit Interest Form →](https://form.mastercard.com/jfe/form/SV_5hGOUu1LFjYFn8i)

### Production

###### Launch your project with full access and capability

##### Contact Us

* Unlimited real cards
* Receive real time transactions with customizable payload via webhook endpoint
* Retrieve real transaction data via Undelivered Notifications API
* Ability to filter notifications events
* Clearing API
* **Prerequisite:**   
  a. Successful test in Trial Tier   
  b. Available and approved Use Case   
  c. Signed Commercial Agreement
* [Contact Us →](mailto:transaction.notifications@mastercard.com)

### Request Production Access {#request-production-access}

Once you've thoroughly tested your application with Sandbox and are confident that it's working as expected, you can request an upgrade to Production. Your Production credentials will only be created and activated for use after Mastercard reviews and approves your Production access request.

* **Trial:** A Production, non-billable plan that allows you to access all Transaction Notifications endpoints and gives you the ability to test against real (and limited) financial data for a trial period. We recommend using Trial before moving to Production (billable) plan. Please fill out this [interest form](https://form.mastercard.com/jfe/form/SV_5hGOUu1LFjYFn8i), and we'll get back to you if your use-case is available for access (for more information on key use-cases, please refer to [this section](https://developer.mastercard.com/transaction-notifications/documentation/use-cases/))
* **Production:** Provides access to the Transaction Notifications endpoints mentioned in your contract. Your specific pricing and billing structure will be governed by your agreement with Mastercard

**Note:** Requests for Production plans - non-billable and billable - will be approved only if a contract between you and Mastercard has been executed. Please work with the Transaction Notifications team to upgrade to production.