Two-Factor Authentication with MFA

Two-Factor authentication with Bandwidth MFA services

⚠️ Your account must be activated to use the MFA product. Please contact sales support to learn how to get access!

Request URL

POSThttps://mfa.bandwidth.com/api/v1/accounts/{accountId}/code/voice

Basic Authentication

Bandwidth's MFA API leverages Basic Authentication with your Dashboard API Credentials. Read more about how Bandwidth secures endpoints in the Security & Credentials document.

Supported Parameters

Parameter Required Description
to Yes The phone number the message should be sent to (must be in E.164 format, like +19195551212).
from Yes One of your telephone numbers from which the message should come from (must be in E.164 format, like +19195551212). This number must be associated with the voice application given by the applicationId parameter.
applicationId Yes The voice application Id.
scope No An optional field to denote what scope or action the 2fa code is addressing. If not supplied, defaults to "2FA".
message Yes The message format of the 2fa code. There are three values that the system will replace "{CODE}", "{NAME}", "{SCOPE}". The "{SCOPE}" and "{NAME}" template values are optional, while "{CODE}" must be supplied. As the name would suggest, "{CODE}" will be replaced with the actual 2fa code. "{NAME}" is replaced with the application name, configured during provisioning of 2fa. The "{SCOPE}" value is the value of the scope parameter. The value of this parameter is limited to 2048 characters.
digits Yes The number of digits for your 2fa code. The valid number ranges from 4 to 8, inclusively.

Response Attributes

Property Description
callId The Call Id

Example 1 of 1: Authenticate with Voice

curl -X POST \
    --url "https://mfa.bandwidth.com/api/v1/accounts/{accountId}/code/voice" \
    -u '{username}:{password}' \
    --data-raw '
    {
        "to"            : "+12345678902",
        "from"          : "+12345678901",
        "applicationId" : "93de2206-9669-4e07-948d-329f4b722ee2",
        "scope"         : "scope",
        "digits"        : 5,
        "message"       : "Your temporary {NAME} {SCOPE} code is {CODE}"
    }
  '

The above command returns a JSON Response structured like this:

Status: 200
Content-Type: application/json; charset=utf-8

{
  "callId": "1256-adf14asd-52dfa"
}

var response = controller.CreateVoiceTwoFactor(accountId, new TwoFactorCodeRequestSchema
{
    ApplicationId = applicationId,
    From = fromNumber,
    To = toNumber,
    Scope = "scope",
    Digits = 5,
    Message = "Your temporary {NAME} {SCOPE} code is {CODE}"
});

Console.WriteLine( response.Data.CallId );

TwoFactorCodeRequestSchema request = new TwoFactorCodeRequestSchema();
request.setApplicationId(applicationId);
request.setFrom(fromNumber);
request.setTo(toNumber);
request.setScope("scope");
request.setDigits(5);
request.setMessage("Your temporary {NAME} {SCOPE} code is {CODE}");

ApiResponse<TwoFactorVoiceResponse> response = controller.createVoiceTwoFactor(accountId, request);

System.out.println( response.getResult().getCallId() );

application_id = voice_application_id

body = TwoFactorCodeRequestSchema.new
body.from = from_phone
body.to = to_phone
body.application_id = application_id
body.scope = 'scope'
body.digits = 5
body.message = "Your temporary {NAME} {SCOPE} code is {CODE}"

auth_client.create_voice_two_factor(account_id, body)

body = TwoFactorCodeRequestSchema(
    mfrom = from_phone,
    to = to_phone,
    application_id = voice_application_id,
    scope = 'scope',
    digits = 5,
    message = "Your temporary {NAME} {SCOPE} code is {CODE}"
)
response = auth_client.create_voice_two_factor(account_id, body)
call_id = response.body.call_id

const payload = new mfa.TwoFactorCodeRequestSchema();
payload.applicationId = applicationId;
payload.from = fromNumber;
payload.to = toNumber;
payload.scope = 'scope';
payload.digits = 5;
payload.message = "Your temporary {NAME} {SCOPE} code is {CODE}";

const response = await controller.createVoiceTwoFactor(accountId, payload);

console.log(JSON.stringify(response, null, 2));

$scope = 'scope';

$body = new BandwidthLib\TwoFactorAuth\Models\TwoFactorCodeRequestSchema();
$body->from = $fromPhone;
$body->to = $toPhone;
$body->applicationId = $voiceApplicationId;
$body->scope = $scope;
$body->digits = 5;
$body->message = "Your temporary {NAME} {SCOPE} code is {CODE}";

$authClient->createVoiceTwoFactor($accountId, $body);

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