identityApiConnector: uploadClientCertificate

Namespace: microsoft.graph

Upload a PKCS 12 format key (.pfx) to an API connector's authentication configuration. The input is a base-64 encoded value of the PKCS 12 certificate contents. This method returns an apiConnector.


One of the following permissions is required to call this API. To learn more, including how to choose permissions, see Permissions.

Permission type Permissions (from least to most privileged)
Delegated (work or school account) APIConnectors.ReadWrite.All
Delegated (personal Microsoft account) Not supported.
Application APIConnectors.ReadWrite.All

The work or school account needs to belong to one of the following roles:

  • Global administrator
  • External Identity User Flow administrator

HTTP request

POST /identity/apiconnectors/{id}/uploadClientCertificate

Request headers

Name Description
Authorization Bearer {token}. Required.
Content-type application/json. Required.

Request body

In the request body, provide a JSON object with the following parameters.

Property Type Description
pkcs12Value String This is the field for sending the pfx content. The value should be a base-64 encoded version of the actual certificate content. Required.
password String This is the password for the pfx file. Required. If no password is used, must still provide a value of "".


If successful, this method returns a 200 OK response code and the apiConnector whose authenticationConfiguration contains the public information of the client certificate.



The following is an example of the request.

Content-type: application/json

    "pkcs12Value": "eyJhbGciOiJSU0EtT0FFUCIsImVuYyI6IkEyNTZHQ00ifQ...kDJ04sJShkkgjL9Bm49plA",
    "password": "<password>"


The following is an example of the response.

Note: authenticationConfiguration in the response is of type microsoft.graph.clientCertificateAuthentication because this represents the public information of uploaded certificates.

HTTP/1.1 200 OK
Content-type: application/json

    "@odata.context": "$metadata#identity/apiConnectors/$entity",
    "id": "45715bb8-13f9-4bf6-927f-ef96c102d394",
    "displayName": "My API connector",
    "targetUrl": "",
    "authenticationConfiguration": {
        "@odata.type": "#microsoft.graph.clientCertificateAuthentication",
        "certificateList": [
                "thumbprint": "0EB255CC895477798BA418B378255204304897AD",
                "notAfter": 1666350522,
                "notBefore": 1508670522,
                "isActive": true