> For the complete documentation index, see [llms.txt](https://docs.hyperswitch.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hyperswitch.io/integrations/connectors-integrations/3ds-providers/netcetera.md).

# Netcetera

Authenticate payments through Netcetera's EMV 3DS 2.X processing ecosystem integrated via Juspay Hyperswitch as an external 3DS authentication provider.

Netcetera handles external 3DS authentication rather than payment execution. It does not declare payment methods because its role ends when authentication data is returned for the payment connector. Merchants use it to add a dedicated authentication step to supported payment flows.

### Status and capabilities

**Integration status:** sandbox

**Category:** authentication provider

**Webhook flows:** None declared in code

*This connector declares no payment methods. It is an authentication provider rather than a payment processor.*

### Authentication

Netcetera requires a PEM **Certificate** and matching **Private Key**. Hyperswitch maps them through `CertificateAuth` for mutual TLS and sends no HTTP authorization header. See [`NetceteraAuthType::try_from()`](https://github.com/juspay/hyperswitch/blob/d4e93b6e6dd39e45a8d5d8647b362f1bb8543946/crates/hyperswitch_connectors/src/connectors/netcetera/transformers.rs#L232-L246) and [`get_auth_header()`](https://github.com/juspay/hyperswitch/blob/d4e93b6e6dd39e45a8d5d8647b362f1bb8543946/crates/hyperswitch_connectors/src/connectors/netcetera.rs#L120-L125).

### Before you start

1. Contact [netcetera.com](https://www.netcetera.com/) to register for 3DS server access.
2. Sign in to the [Hyperswitch control center](https://app.hyperswitch.io/).
3. Obtain the PEM **Certificate** and matching **Private Key** during Netcetera onboarding.

Follow [Activate a connector on Hyperswitch](/integrations/connectors-integrations/activate-connector-on-hyperswitch.md), then return here for Netcetera-specific behavior.

If your activation uses the external authentication flow, follow [External authentication for 3DS](https://github.com/juspay/hyperswitch-docs/tree/main/integration-guide/workflows/3ds-decision-manager/external-authentication-for-3ds.md) after the connector is enabled.

### Webhooks

Handled event wire values: **0**. Netcetera sends result callbacks but does not distinguish event types: every callback maps to a single fixed event, `ExternalAuthenticationARes`. Hyperswitch reads the 3DS server transaction ID from the callback to look up the authentication result. See [`IncomingWebhook for Netcetera`](https://github.com/juspay/hyperswitch/blob/d4e93b6e6dd39e45a8d5d8647b362f1bb8543946/crates/hyperswitch_connectors/src/connectors/netcetera.rs#L179-L211).

### Source reference

Authentication and webhook behavior on this page is tied to Hyperswitch `d4e93b6e6dd39e45a8d5d8647b362f1bb8543946`. See [Netcetera connector source](https://github.com/juspay/hyperswitch/blob/d4e93b6e6dd39e45a8d5d8647b362f1bb8543946/crates/hyperswitch_connectors/src/connectors/netcetera.rs) and [Netcetera transformers](https://github.com/juspay/hyperswitch/blob/d4e93b6e6dd39e45a8d5d8647b362f1bb8543946/crates/hyperswitch_connectors/src/connectors/netcetera/transformers.rs).


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