---
title: "Update a parameter"
method: PUT
path: "/api/synthetics/params/{id}"
tags: ["synthetics"]
---

# Update a parameter

`PUT /api/synthetics/params/{id}`

**Spaces method and path for this operation:**

<div><span class="operation-verb put">put</span>&nbsp;<span class="operation-path">/s/{space_id}/api/synthetics/params/{id}</span></div>

Refer to [Spaces](https://www.elastic.co/docs/deploy-manage/manage-spaces) for more information.

Update a parameter in the Synthetics app.
You must have `all` privileges for the Synthetics feature in the Observability section of the Kibana feature privileges.

## Path parameters

- `id` string, required

## Request body

- object
  - `description` string — The updated description of the parameter.
  - `key` string — The key of the parameter.
  - `tags` string[] — An array of updated tags to categorize the parameter.
  - `value` string — The updated value associated with the parameter.

## Response `200`

A successful response.

- object

---

[API](https://skmtc.net/elastic/apis/kibana-apis.md) · [All operations](https://skmtc.net/elastic/apis/kibana-apis/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/elastic/kibana-apis/versions/531c9e2a7d23/schema)