---
title: "Create a new SNI"
method: POST
path: "/v2/control-planes/{controlPlaneId}/core-entities/snis"
tags: ["SNIs"]
---

# Create a new SNI

`POST /v2/control-planes/{controlPlaneId}/core-entities/snis`

Create a new SNI

## Request body

- SNI — An SNI object represents a many-to-one mapping of hostnames to a certificate. That is, a certificate object can have many hostnames associated with it; when Kong receives an SSL request, it uses the SNI field in the Client Hello to lookup the certificate object based on the SNI associated with the certificate.
  - `certificate` object, required — The id (a UUID) of the certificate with which to associate the SNI hostname. The Certificate must have a valid private key associated with it to be used by the SNI object.
    - `id` string
  - `created_at` integer, nullable — Unix epoch when the resource was created.
  - `id` string, nullable — A string representing a UUID (universally unique identifier).
  - `name` string, required — The SNI name to associate with the given certificate.
  - `tags` string[], nullable — An optional set of strings associated with the SNIs for grouping and filtering.
  - `updated_at` integer, nullable — Unix epoch when the resource was last updated.

## Response `201`

Successfully created SNI

- SNI — An SNI object represents a many-to-one mapping of hostnames to a certificate. That is, a certificate object can have many hostnames associated with it; when Kong receives an SSL request, it uses the SNI field in the Client Hello to lookup the certificate object based on the SNI associated with the certificate.
  - `certificate` object, required — The id (a UUID) of the certificate with which to associate the SNI hostname. The Certificate must have a valid private key associated with it to be used by the SNI object.
    - `id` string
  - `created_at` integer, nullable — Unix epoch when the resource was created.
  - `id` string, nullable — A string representing a UUID (universally unique identifier).
  - `name` string, required — The SNI name to associate with the given certificate.
  - `tags` string[], nullable — An optional set of strings associated with the SNIs for grouping and filtering.
  - `updated_at` integer, nullable — Unix epoch when the resource was last updated.

## Other responses

- `401` — Unauthorized

## Changes

- **2025-08-22** `96118a9cd7f4` — 1 breaking
  - the request property `certificate` became not nullable
- **2025-07-22** `2c77aeaee5fb` — 1 breaking, 1 info
  - the response property `tags` became nullable for the status `201`
  - the request property `tags` became nullable
- **2025-04-15** `fc6abbc537f3` — 2 breaking, 6 info
  - the response property `created_at` became nullable for the status `201`
  - the response property `updated_at` became nullable for the status `201`
  - the request optional property `created_at` became not read-only
  - the request optional property `updated_at` became not read-only
  - …4 more
- **2024-12-06** `426663331655` — 1 breaking
  - the request property `tags` became not nullable
- **2024-11-12** `19bbc8a36404` — 1 breaking, 1 info
  - the response property `certificate` became nullable for the status `201`
  - the request property `certificate` became nullable

[Full history](https://skmtc.dev/kong/apis/konnect-api/changes/v2/control-planes/:controlPlaneId/core-entities/snis/post.md)

---

[API](https://skmtc.dev/kong/apis/konnect-api.md) · [All operations](https://skmtc.dev/kong/apis/konnect-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/kong/konnect-api/revisions/72502a676a92/schema)