# Getting Started

- [Registration](https://developer.ellypayapp.com/getting-started/registration.md): Any entity interested in the EllyPay  API needs to register and fulfil the compliance/KYC requirements before they are granted access to the platform.
- [Error Handling](https://developer.ellypayapp.com/getting-started/error-handling.md): The EllyPay API uses HTTP status codes to indicate the success or failure of the API requests. The section describes the summary of these codes and what they mean in our context.
- [Authentication](https://developer.ellypayapp.com/getting-started/authentication.md): The EllyPay API uses a key pair (Public and Secret Keys) for authentication. To make an authenticated request to our API, you need to pass custom headers as described in this section.
- [Merchant Account Credentials](https://developer.ellypayapp.com/getting-started/merchant-account-credentials.md): For every approved merchant account, a set of credentials is automatically generated and stored on the record. This section describes how the merchant can manage credentials after the account creation
- [Generate Secret Key](https://developer.ellypayapp.com/getting-started/merchant-account-credentials/generate-secret-key.md): The section below describes (with screenshots) how to generate and store a new secret key. The process assumes that you're already logged in to the merchant dashboard.
- [Regenerate Security Keys](https://developer.ellypayapp.com/getting-started/merchant-account-credentials/regenerate-security-keys.md): The section below describes (with screenshots) how to generate a new set of security keys. The process assumes that you're already logged in to the merchant dashboard.
- [Supported Countries](https://developer.ellypayapp.com/getting-started/supported-countries.md): The EllyPay platform supports multiple payment methods, transaction types and currencies across a number of countries or regions. Merchant accounts will be enabled for only what they request.
- [Transaction Limits](https://developer.ellypayapp.com/getting-started/transaction-limits.md): For some of the transaction currencies supported, there are limits that control what a single transaction account is able to do per transaction and in a 24hr period.
- [Sandbox Test Accounts](https://developer.ellypayapp.com/getting-started/sandbox-test-accounts.md): The table below describes the test account numbers that can be used for tests on the sandbox to simulate transactions. Two scenarios (success and failure) can be simulated based on the account number.
- [RSA Public Keys](https://developer.ellypayapp.com/getting-started/rsa-public-keys.md): This section shares the two public keys used for the two environments (Sandbox and Production). The keys can be copied and stored as files to later be used in transaction processing


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