---
title: "GET /installation"
method: GET
path: "/installation"
tags: ["installation"]
---

# GET /installation

`GET /installation`

You must have an active session to make this call. This call returns the Id of the the Installation you are using in your session.

## Headers

- `Cache-Control` string
- `User-Agent` string, required
- `X-Bunq-Language` string
- `X-Bunq-Region` string
- `X-Bunq-Client-Request-Id` string
- `X-Bunq-Geolocation` string
- `X-Bunq-Client-Authentication` string, required

## Response `200`

Installation is used to tell the server about the public key of your key pair. The server uses this key to verify your subsequent calls, which need to be signed with your own private key. Additionally, you can use the token you get from an Installation to authenticate the registration of a new device.

- InstallationListing[]
  - `id` integer — The id of the Installation as created on the server. You can use this id to request the server's public key again.

## Other responses

- `400` — This is how the error response looks like for 4XX response codes

---

[API](https://skmtc.net/bunq/apis/bunq-api.md) · [All operations](https://skmtc.net/bunq/apis/bunq-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/bunq/bunq-api/revisions/369477c7bd26/schema)