> For the complete documentation index, see [llms.txt](https://docs.payments.thalescloud.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payments.thalescloud.io/3d-secure/integrate-d1-api/d1-api-summary.md). # D1 API summary Use this checklist to validate the D1 API endpoints you need to integrate 3DS. ### Required APIs | API | Inbound/Outbound | Description | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------- | -------------------------------------------------------------------------------- | | [Get authorization token](/3d-secure/integrate-d1-api/d1-api-reference/inbound-api-to-d1/oauth2-api.md#post-oauth2-token) | Issuer -> Thales D1 | Get an OAuth 2.0 access token to call the D1 backend. | | [Create card](/3d-secure/integrate-d1-api/d1-api-reference/inbound-api-to-d1/card-api.md#post-v2-issuers-issuerid-cards) or [Register card](/3d-secure/integrate-d1-api/d1-api-reference/inbound-api-to-d1/card-api.md#put-v2-issuers-issuerid-cards-cardid) | Issuer -> Thales D1 | Create or register a card in the D1 backend. | | [Renew card](/3d-secure/integrate-d1-api/d1-api-reference/inbound-api-to-d1/card-api.md#post-v2-issuers-issuerid-cards-cardid-operations-renew) | Issuer -> Thales D1 | Renew a card. | | [Replace card](/3d-secure/integrate-d1-api/d1-api-reference/inbound-api-to-d1/card-api.md#post-v2-issuers-issuerid-cards-cardid-operations-replace) | Issuer -> Thales D1 | Replace a card. | | [Delete card](/3d-secure/integrate-d1-api/d1-api-reference/inbound-api-to-d1/card-api.md#post-v2-issuers-issuerid-cards-cardid-operations-delete) | Issuer -> Thales D1 | Delete a card from the D1 backend. | | [Notify 3DS card operation](/3d-secure/integrate-d1-api/d1-api-reference/outbound-api-from-d1/3ds-api.md#post-notifications-d1-v1-issuers-issuerid-cards-cardid-3ds-notifications) | Issuer <- Thales D1 | Receive 3DS operation notifications, such as frictionless or challenge outcomes. | ### Conditional APIs Use the APIs below depending on which authentication flows you enable. #### Support SMS OTP challenges | API | Inbound/Outbound | Description | | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------- | ------------------------------------------------------------------------------------------------------------------ | | [Get consumer information](/3d-secure/integrate-d1-api/d1-api-reference/outbound-api-from-d1/consumer-api.md#get-banking-d1-v1-issuers-issuerid-consumers-consumerid) | Issuer <- Thales D1 | Provide end user details used for OTP delivery, such as phone number. | | [Deliver OTP](/3d-secure/integrate-d1-api/d1-api-reference/outbound-api-from-d1/consumer-api.md#post-banking-d1-v1-issuers-issuerid-consumers-consumerid-otp) | Issuer <- Thales D1 | Receive an OTP from the D1 backend so the issuer backend can deliver it to the end user (issuer-managed SMS only). | #### Support OOB enrollment | API | Inbound/Outbound | Description | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------- | ---------------------------------------------------------------------------------- | | [Delete credentials](/3d-secure/integrate-d1-api/d1-api-reference/inbound-api-to-d1/3ds-api.md#post-issuers-issuerid-appinstances-appinstanceid-authncredentials-operations-delete) | Issuer -> Thales D1 | Delete authentication credentials for an issuer application instance (OOB only). | | [Notify consumer operation](/3d-secure/integrate-d1-api/d1-api-reference/outbound-api-from-d1/consumer-api.md#post-banking-d1-v1-issuers-issuerid-consumers-consumerid-notifications) | Issuer <- Thales D1 | Receive notifications about end user operations, such as authenticator enrollment. | #### Support OOB flow with issuer authentication (SCA) | API | Inbound/Outbound | Description | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------- | -------------------------------------------------------------------------------------------- | | [Authenticate](/3d-secure/integrate-d1-api/d1-api-reference/outbound-api-from-d1/consumer-api.md#post-banking-d1-v1-issuers-issuerid-consumers-consumerid-authentication) | Issuer <- Thales D1 | Trigger step-up authentication in the issuer application and return a correlation reference. | | [Get authentication result](/3d-secure/integrate-d1-api/d1-api-reference/outbound-api-from-d1/consumer-api.md#get-banking-d1-v1-issuers-issuerid-consumers-consumerid-authentication-authenticationid) | Issuer <- Thales D1 | Provide the final result of step-up authentication to the D1 backend. | ### Optional APIs Use the APIs below depending on which authentication flows you enable. #### Secure outbound calls with OAuth 2.0 | API | Inbound/Outbound | Description | | ----------------------------------------------------------------------------------------------------------- | ------------------- | ------------------------------------------------------------------------------ | | [Get authentication token](/3d-secure/integrate-d1-api/d1-api-reference/outbound-api-from-d1/oauth2-api.md) | Issuer <- Thales D1 | Provide an OAuth 2.0 access token for D1 outbound calls to the issuer backend. | #### Retrieve 3DS operation history | API | Inbound/Outbound | Description | | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------- | -------------------------------------------------------------- | | [Get 3DS operation](/3d-secure/integrate-d1-api/d1-api-reference/inbound-api-to-d1/3ds-api.md#get-issuers-issuerid-cards-cardid-3ds-operations-operationid) or [Get 3DS operations](/3d-secure/integrate-d1-api/d1-api-reference/inbound-api-to-d1/3ds-api.md#get-issuers-issuerid-cards-cardid-3ds-operations) | Issuer -> Thales D1 | Retrieve 3DS operations for a card (single operation or list). | --- # Agent Instructions This documentation is published with GitBook. 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