---
title: Upload Custom Origin Trust Store
---

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[API Reference](https://developers.cloudflare.com/api/python)

[ACM](https://developers.cloudflare.com/api/python/resources/acm)

[Custom Trust Store](https://developers.cloudflare.com/api/python/resources/acm/subresources/custom_trust_store)

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# Upload Custom Origin Trust Store

acm.custom\_trust\_store.create(CustomTrustStoreCreateParams\*\*kwargs) -> [CustomTrustStore](<https://developers.cloudflare.com/api/python/resources/acm#(resource)%20acm.custom_trust_store%20%3E%20(model)%20custom-trust-store%20%3E%20(schema)>)

POST/zones/{zone\_id}/acm/custom\_trust\_store

Upload a root CA certificate to the Custom Origin Trust Store for a Zone. Only root CA certificates are accepted.

##### Security

<details>

<summary>API Token</summary>



The preferred authorization scheme for interacting with the Cloudflare API. <a href="https://developers.cloudflare.com/fundamentals/api/get-started/create-token/">Create a token</a>.

**Example:**<code>Authorization: Bearer Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY</code>

</details>

<details>

<summary>API Email + API Key</summary>



The previous authorization scheme for interacting with the Cloudflare API, used in conjunction with a Global API key.

**Example:**<code>X-Auth-Email: user@example.com</code>

The previous authorization scheme for interacting with the Cloudflare API. When possible, use API tokens instead of Global API keys.

**Example:**<code>X-Auth-Key: 144c9defac04969c7bfad8efaa8ea194</code>

</details>

##### Accepted Permissions (at least one required)

`SSL and Certificates Write`

##### ParametersExpand Collapse

zone\_id: str

Identifier.

maxLength32

[Link to this property](<#(resource)%20acm.custom_trust_store%20%3E%20(method)%20create%20%3E%20(params)%20default%20%3E%20(param)%20zone_id%20%3E%20(schema)>)

certificate: str

The root CA certificate in PEM format. Only root CA certificates are accepted; intermediate and leaf certificates are not supported.

[Link to this property](<#(resource)%20acm.custom_trust_store%20%3E%20(method)%20create%20%3E%20(params)%20default%20%3E%20(param)%20certificate%20%3E%20(schema)>)

##### ReturnsExpand Collapse

<details>

<summary>

class CustomTrustStore: …

</summary>

id: str

Certificate identifier tag.

maxLength36

<a href="#(resource)%20acm.custom_trust_store%20%3E%20(model)%20custom-trust-store%20%3E%20(schema)%20%3E%20(property)%20id">Link to this property</a>

certificate: str

The root CA certificate in PEM format. Only root CA certificates are accepted; intermediate and leaf certificates are not supported.

<a href="#(resource)%20acm.custom_trust_store%20%3E%20(model)%20custom-trust-store%20%3E%20(schema)%20%3E%20(property)%20certificate">Link to this property</a>

expires\_on: datetime

When the certificate expires.

formatdate-time

<a href="#(resource)%20acm.custom_trust_store%20%3E%20(model)%20custom-trust-store%20%3E%20(schema)%20%3E%20(property)%20expires_on">Link to this property</a>

issuer: str

The certificate authority that issued the certificate.

<a href="#(resource)%20acm.custom_trust_store%20%3E%20(model)%20custom-trust-store%20%3E%20(schema)%20%3E%20(property)%20issuer">Link to this property</a>

signature: str

The type of hash used for the certificate.

<a href="#(resource)%20acm.custom_trust_store%20%3E%20(model)%20custom-trust-store%20%3E%20(schema)%20%3E%20(property)%20signature">Link to this property</a>

<details>

<summary>

status: Literal\["initializing", "pending\_deployment", "active", 3 more]

Status of the zone’s custom SSL.

</summary>

One of the following:

"initializing"

<a href="#(resource)%20acm.custom_trust_store%20%3E%20(model)%20custom-trust-store%20%3E%20(schema)%20%3E%20(property)%20status%20%3E%20(member)%200">Link to this property</a>

"pending\_deployment"

<a href="#(resource)%20acm.custom_trust_store%20%3E%20(model)%20custom-trust-store%20%3E%20(schema)%20%3E%20(property)%20status%20%3E%20(member)%201">Link to this property</a>

"active"

<a href="#(resource)%20acm.custom_trust_store%20%3E%20(model)%20custom-trust-store%20%3E%20(schema)%20%3E%20(property)%20status%20%3E%20(member)%202">Link to this property</a>

"pending\_deletion"

<a href="#(resource)%20acm.custom_trust_store%20%3E%20(model)%20custom-trust-store%20%3E%20(schema)%20%3E%20(property)%20status%20%3E%20(member)%203">Link to this property</a>

"deleted"

<a href="#(resource)%20acm.custom_trust_store%20%3E%20(model)%20custom-trust-store%20%3E%20(schema)%20%3E%20(property)%20status%20%3E%20(member)%204">Link to this property</a>

"expired"

<a href="#(resource)%20acm.custom_trust_store%20%3E%20(model)%20custom-trust-store%20%3E%20(schema)%20%3E%20(property)%20status%20%3E%20(member)%205">Link to this property</a>

</details>

<a href="#(resource)%20acm.custom_trust_store%20%3E%20(model)%20custom-trust-store%20%3E%20(schema)%20%3E%20(property)%20status">Link to this property</a>

updated\_at: datetime

When the certificate was last modified.

formatdate-time

<a href="#(resource)%20acm.custom_trust_store%20%3E%20(model)%20custom-trust-store%20%3E%20(schema)%20%3E%20(property)%20updated_at">Link to this property</a>

uploaded\_on: datetime

When the certificate was uploaded to Cloudflare.

formatdate-time

<a href="#(resource)%20acm.custom_trust_store%20%3E%20(model)%20custom-trust-store%20%3E%20(schema)%20%3E%20(property)%20uploaded_on">Link to this property</a>

</details>

[Link to this property](<#(resource)%20acm.custom_trust_store%20%3E%20(model)%20custom-trust-store%20%3E%20(schema)>)

### Upload Custom Origin Trust Store

Python

HTTPTypeScriptPythonGoTerraform

```
import os
from cloudflare import Cloudflare

client = Cloudflare(
    api_token=os.environ.get("CLOUDFLARE_API_TOKEN"),  # This is the default and can be omitted
)
custom_trust_store = client.acm.custom_trust_store.create(
    zone_id="023e105f4ecef8ad9ca31a8372d0c353",
    certificate="-----BEGIN CERTIFICATE-----\nMIIDdjCCAl6gAwIBAgIJAPnMg0Fs+/B0MA0GCSqGSIb3DQEBCwUAMFsx...\n-----END CERTIFICATE-----\n",
)
print(custom_trust_store.id)
```

200 example

```
{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "success": true,
  "result": {
    "id": "2458ce5a-0c35-4c7f-82c7-8e9487d3ff60",
    "certificate": "-----BEGIN CERTIFICATE-----\nMIIDdjCCAl6gAwIBAgIJAPnMg0Fs+/B0MA0GCSqGSIb3DQEBCwUAMFsx...\n-----END CERTIFICATE-----\n",
    "expires_on": "2122-10-29T16:59:47Z",
    "issuer": "GlobalSign",
    "signature": "SHA256WithRSA",
    "status": "active",
    "updated_at": "2014-01-01T05:20:00Z",
    "uploaded_on": "2014-01-01T05:20:00Z"
  }
}
```

##### Returns Examples

200 example

```
{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "success": true,
  "result": {
    "id": "2458ce5a-0c35-4c7f-82c7-8e9487d3ff60",
    "certificate": "-----BEGIN CERTIFICATE-----\nMIIDdjCCAl6gAwIBAgIJAPnMg0Fs+/B0MA0GCSqGSIb3DQEBCwUAMFsx...\n-----END CERTIFICATE-----\n",
    "expires_on": "2122-10-29T16:59:47Z",
    "issuer": "GlobalSign",
    "signature": "SHA256WithRSA",
    "status": "active",
    "updated_at": "2014-01-01T05:20:00Z",
    "uploaded_on": "2014-01-01T05:20:00Z"
  }
}
```