# Onboarding For TPPs to be able to make a request on the API, they must follow the onboarding process. For that, it is required from them to [send us an email](mailto:openbanking@memo.bank) with the following elements: - one or more **redirect URI** for OAuth2 authentication - a valid **QSealC certificate** In exchange of what they will receive: - a `keyId` to be used with HTTP Signature authentication - a `client_id` and a `client_secret` to be used with OAuth2 authentication