---
title: "Create an AI Gateway SNI for a Certificate"
method: POST
path: "/v1/ai-gateways/{gatewayId}/certificates/{certificateIdOrName}/snis"
tags: ["AI Gateway SNIs"]
---

# Create an AI Gateway SNI for a Certificate

`POST /v1/ai-gateways/{gatewayId}/certificates/{certificateIdOrName}/snis`

**Pre-release Endpoint**
This endpoint is currently in beta and is subject to change.

Creates a new SNI associated with a specific AI Gateway certificate.

## Request body

- CreateAIGatewaySNIForCertificateRequest — **Pre-release Feature** This feature is currently in beta and is subject to change. An SNI represents a many-to-one mapping of hostnames to a certificate. A certificate can have many hostnames associated with it; when the AI Gateway receives an SSL request, it uses the SNI field in the Client Hello to look up the certificate associated with the SNI.
  - `name` string, required — The name for this SNI. This value is immutable after creation.
  - `display_name` string, required — The display name for this SNI.
  - `hostname` union, required — A hostname used for TLS Server Name Indication (SNI) matching. Supports an optional wildcard segment at either end of the hostname (for example `*.example.com` or `example.*`).
    - string
    - string
  - `labels` PublicLabels — Public labels store information about an entity that can be used for filtering a list of objects. Public labels are intended to store **PUBLIC** metadata. Keys must be of length 1-63 characters, and cannot start with "kong", "konnect", "mesh", "kic", or "_".
  - `managed_by` ManagedBy — Stores information about what manages this entity, such as the tool or system responsible for its lifecycle (for example, `terraform`). Keys must be 1–63 characters long and start with an alphanumeric character.

## Response `201`

AI Gateway SNI created successfully.

- AIGatewaySNI — **Pre-release Feature** This feature is currently in beta and is subject to change. An SNI represents a many-to-one mapping of hostnames to a certificate. A certificate can have many hostnames associated with it; when the AI Gateway receives an SSL request, it uses the SNI field in the Client Hello to look up the certificate associated with the SNI.
  - `name` string, required — The name for this SNI. This value is immutable after creation.
  - `display_name` string, required — The display name for this SNI.
  - `hostname` union, required — A hostname used for TLS Server Name Indication (SNI) matching. Supports an optional wildcard segment at either end of the hostname (for example `*.example.com` or `example.*`).
    - string
    - string
  - `labels` PublicLabels — Public labels store information about an entity that can be used for filtering a list of objects. Public labels are intended to store **PUBLIC** metadata. Keys must be of length 1-63 characters, and cannot start with "kong", "konnect", "mesh", "kic", or "_".
  - `managed_by` ManagedBy — Stores information about what manages this entity, such as the tool or system responsible for its lifecycle (for example, `terraform`). Keys must be 1–63 characters long and start with an alphanumeric character.
  - `certificate` string, required — **Pre-release Feature** This feature is currently in beta and is subject to change. A reference to the certificate with which to associate the SNI hostname, by certificate name. The certificate must have a valid private key to be used by the SNI.
  - `id` string, uuid, required — Contains a unique identifier used for this resource.
  - `created_at` string, date-time, required — An ISO-8601 timestamp representation of entity creation date.
  - `updated_at` string, date-time, required — An ISO-8601 timestamp representation of entity update date.

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not Found
- `409` — Conflict
- `429` — Too Many Requests

---

[API](https://skmtc.net/kong/apis/konnect-api-go-sdk.md) · [All operations](https://skmtc.net/kong/apis/konnect-api-go-sdk/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/kong/konnect-api-go-sdk/revisions/b31b9b097e6d/schema)