> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.itential.com/itential-cloud/api-reference/gateway-manager/get-certificates/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.itential.com/_mcp/server.

# List all certificates

GET https://example.itential.io/gateway_manager/v1/certificates

Returns all certificates from the certificate store.

Reference: https://docs.itential.com/itential-cloud/api-reference/gateway-manager/get-certificates

## Authentication

- `Authorization` header (basic auth, required) — Basic authentication of the form `Basic <base64(username:password)>`.

## Response

### 200

A list of all of the certificates that exist in the certificate store

- `state` (string, optional, default: Success)
- `results` (list of object, optional)
  - `_id` (string, optional) — The Id of the certificate within the database
  - `certificate` (string, optional) — The raw certificate data
  - `contract_id` (string, optional) — The name of the certificate
  - `host` (string, optional)
  - `issuer` (string, optional)
  - `self_signed` (boolean, optional)
  - `type` (string, optional)
  - `validity` (object, optional)
    - `notBefore` (string, optional)
    - `notAfter` (string, optional)
  - `gateways` (list of string, optional) — An array of the gateways that are associated with the certificate

## Errors

### 500 Internal Server Error

Error response from API

- `any`

## Examples

**Response**

```json
{
  "state": "Success",
  "results": [
    {
      "_id": "66ff56c9fcbec46997145abd",
      "certificate": "-----BEGIN CERTIFICATE--...",
      "contract_id": "my-certificate-1",
      "host": "localhost",
      "issuer": "localhost",
      "self_signed": true,
      "type": "Root",
      "validity": {
        "notBefore": "2024-10-03T20:52:55.000Z",
        "notAfter": "2025-10-03T20:52:55.000Z"
      },
      "gateways": [
        "gateway_1"
      ]
    }
  ]
}
```

**SDK Code**

```python
import requests

url = "https://example.itential.io/gateway_manager/v1/certificates"

response = requests.get(url)

print(response.json())
```

```javascript
const url = 'https://example.itential.io/gateway_manager/v1/certificates';
const options = {method: 'GET'};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://example.itential.io/gateway_manager/v1/certificates"

	req, _ := http.NewRequest("GET", url, nil)

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://example.itential.io/gateway_manager/v1/certificates")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.get("https://example.itential.io/gateway_manager/v1/certificates")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://example.itential.io/gateway_manager/v1/certificates');

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://example.itential.io/gateway_manager/v1/certificates");
var request = new RestRequest(Method.GET);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let request = NSMutableURLRequest(url: NSURL(string: "https://example.itential.io/gateway_manager/v1/certificates")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "GET"

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```