---
title: "Retrieve a signing key"
method: GET
path: "/system/v1/signing-keys/{SIGNING_KEY_ID}"
tags: ["Signing Keys"]
---

# Retrieve a signing key

`GET /system/v1/signing-keys/{SIGNING_KEY_ID}`

Retrieves the details of a signing key that has previously
been created. Supply the unique signing key ID that was returned from your
previous request, and Mux will return the corresponding signing key information.
**The private key is not returned in this response.**

## Path parameters

- `SIGNING_KEY_ID` string, required

## Response `200`

OK

- SigningKeyResponse
  - `data` SigningKey, required
    - `id` string, required — Unique identifier for the Signing Key.
    - `created_at` string, int64, required — Time at which the object was created. Measured in seconds since the Unix epoch.
    - `private_key` string, byte — A Base64 encoded private key that can be used with the RS256 algorithm when creating a [JWT](https://jwt.io/). **Note that this value is only returned once when creating a URL signing key.**

---

[API](https://skmtc.net/muxinc/apis/mux-api.md) · [All operations](https://skmtc.net/muxinc/apis/mux-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/muxinc/mux-api/versions/34a65dce0f31/schema)