Create User Action Challenge

curl --request POST \
  --url https://api.dfns.io/auth/action/init \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "userActionPayload": "{\"name\": \"My PAT\",\"publicKey\": \"-----BEGIN PUBLIC KEY-----\\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEZQt0YI2hdsFNmKJesSkAHldyPLIV\\nFLI/AhQ5eGasA7jU8tEXOb6nGvxRaTIXrgZ2NPdk78O8zMqz5u9AekH8jA==\\n-----END PUBLIC KEY-----\",\"daysValid\": 365,\"permissionId\": \"pm-delaw-avoca-v16r37fpp8koqebc\"}",
  "userActionHttpMethod": "POST",
  "userActionHttpPath": "/auth/pats"
}
'

import requests

url = "https://api.dfns.io/auth/action/init"

payload = {
    "userActionPayload": "{\"name\": \"My PAT\",\"publicKey\": \"-----BEGIN PUBLIC KEY-----\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEZQt0YI2hdsFNmKJesSkAHldyPLIV\nFLI/AhQ5eGasA7jU8tEXOb6nGvxRaTIXrgZ2NPdk78O8zMqz5u9AekH8jA==\n-----END PUBLIC KEY-----\",\"daysValid\": 365,\"permissionId\": \"pm-delaw-avoca-v16r37fpp8koqebc\"}",
    "userActionHttpMethod": "POST",
    "userActionHttpPath": "/auth/pats"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    userActionPayload: '{"name": "My PAT","publicKey": "-----BEGIN PUBLIC KEY-----\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEZQt0YI2hdsFNmKJesSkAHldyPLIV\nFLI/AhQ5eGasA7jU8tEXOb6nGvxRaTIXrgZ2NPdk78O8zMqz5u9AekH8jA==\n-----END PUBLIC KEY-----","daysValid": 365,"permissionId": "pm-delaw-avoca-v16r37fpp8koqebc"}',
    userActionHttpMethod: 'POST',
    userActionHttpPath: '/auth/pats'
  })
};

fetch('https://api.dfns.io/auth/action/init', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.dfns.io/auth/action/init",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'userActionPayload' => '{"name": "My PAT","publicKey": "-----BEGIN PUBLIC KEY-----\\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEZQt0YI2hdsFNmKJesSkAHldyPLIV\\nFLI/AhQ5eGasA7jU8tEXOb6nGvxRaTIXrgZ2NPdk78O8zMqz5u9AekH8jA==\\n-----END PUBLIC KEY-----","daysValid": 365,"permissionId": "pm-delaw-avoca-v16r37fpp8koqebc"}',
    'userActionHttpMethod' => 'POST',
    'userActionHttpPath' => '/auth/pats'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.dfns.io/auth/action/init"

	payload := strings.NewReader("{\n  \"userActionPayload\": \"{\\\"name\\\": \\\"My PAT\\\",\\\"publicKey\\\": \\\"-----BEGIN PUBLIC KEY-----\\\\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEZQt0YI2hdsFNmKJesSkAHldyPLIV\\\\nFLI/AhQ5eGasA7jU8tEXOb6nGvxRaTIXrgZ2NPdk78O8zMqz5u9AekH8jA==\\\\n-----END PUBLIC KEY-----\\\",\\\"daysValid\\\": 365,\\\"permissionId\\\": \\\"pm-delaw-avoca-v16r37fpp8koqebc\\\"}\",\n  \"userActionHttpMethod\": \"POST\",\n  \"userActionHttpPath\": \"/auth/pats\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.dfns.io/auth/action/init")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"userActionPayload\": \"{\\\"name\\\": \\\"My PAT\\\",\\\"publicKey\\\": \\\"-----BEGIN PUBLIC KEY-----\\\\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEZQt0YI2hdsFNmKJesSkAHldyPLIV\\\\nFLI/AhQ5eGasA7jU8tEXOb6nGvxRaTIXrgZ2NPdk78O8zMqz5u9AekH8jA==\\\\n-----END PUBLIC KEY-----\\\",\\\"daysValid\\\": 365,\\\"permissionId\\\": \\\"pm-delaw-avoca-v16r37fpp8koqebc\\\"}\",\n  \"userActionHttpMethod\": \"POST\",\n  \"userActionHttpPath\": \"/auth/pats\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.dfns.io/auth/action/init")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"userActionPayload\": \"{\\\"name\\\": \\\"My PAT\\\",\\\"publicKey\\\": \\\"-----BEGIN PUBLIC KEY-----\\\\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEZQt0YI2hdsFNmKJesSkAHldyPLIV\\\\nFLI/AhQ5eGasA7jU8tEXOb6nGvxRaTIXrgZ2NPdk78O8zMqz5u9AekH8jA==\\\\n-----END PUBLIC KEY-----\\\",\\\"daysValid\\\": 365,\\\"permissionId\\\": \\\"pm-delaw-avoca-v16r37fpp8koqebc\\\"}\",\n  \"userActionHttpMethod\": \"POST\",\n  \"userActionHttpPath\": \"/auth/pats\"\n}"

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

{
  "supportedCredentialKinds": [
    {
      "kind": "Fido2",
      "factor": "first",
      "requiresSecondFactor": true
    }
  ],
  "challenge": "MWM0MmY5YTQ0MDRiNzdhNTFhNzY5ODQwNWI5ZTQ4Y2RhODZiNDk3ZTYzOTE5OGYyMDcxZjBjYzk4MmQ5YzY1MA",
  "challengeIdentifier": "eyJ0e...fQNA",
  "userVerification": "required",
  "attestation": "direct",
  "externalAuthenticationUrl": "",
  "allowCredentials": {
    "key": [],
    "passwordProtectedKey": [
      {
        "type": "public-key",
        "id": "hIjkx5PqVxz8wbtuvOh2UYHEY1QXS8mMfKeEDGt-0Fo=",
        "encryptedPrivateKey": "LsXVskHYqqrKKxBC9KvqStLEmxak5Y7NaboDDlRSIW7evUJpQTT1AYvx0EsFskmriaVb3AjTCGEv7gqUKokml1USL7+dVmrUVhV+cNWtS5AorvRuZr1FMGVKFkW1pKJhFNH2e2O661UhpyXsRXzcmksA7ZN/V37ZK7ITue0gs6I="
      }
    ],
    "webauthn": [
      {
        "type": "public-key",
        "id": "c1QEdgnPLJargwzy3cbYKny4Q18u0hr97unXsF3DiE8"
      }
    ]
  }
}

POST

auth

action

init

Create User Action Challenge

curl --request POST \
  --url https://api.dfns.io/auth/action/init \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "userActionPayload": "{\"name\": \"My PAT\",\"publicKey\": \"-----BEGIN PUBLIC KEY-----\\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEZQt0YI2hdsFNmKJesSkAHldyPLIV\\nFLI/AhQ5eGasA7jU8tEXOb6nGvxRaTIXrgZ2NPdk78O8zMqz5u9AekH8jA==\\n-----END PUBLIC KEY-----\",\"daysValid\": 365,\"permissionId\": \"pm-delaw-avoca-v16r37fpp8koqebc\"}",
  "userActionHttpMethod": "POST",
  "userActionHttpPath": "/auth/pats"
}
'

import requests

url = "https://api.dfns.io/auth/action/init"

payload = {
    "userActionPayload": "{\"name\": \"My PAT\",\"publicKey\": \"-----BEGIN PUBLIC KEY-----\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEZQt0YI2hdsFNmKJesSkAHldyPLIV\nFLI/AhQ5eGasA7jU8tEXOb6nGvxRaTIXrgZ2NPdk78O8zMqz5u9AekH8jA==\n-----END PUBLIC KEY-----\",\"daysValid\": 365,\"permissionId\": \"pm-delaw-avoca-v16r37fpp8koqebc\"}",
    "userActionHttpMethod": "POST",
    "userActionHttpPath": "/auth/pats"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    userActionPayload: '{"name": "My PAT","publicKey": "-----BEGIN PUBLIC KEY-----\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEZQt0YI2hdsFNmKJesSkAHldyPLIV\nFLI/AhQ5eGasA7jU8tEXOb6nGvxRaTIXrgZ2NPdk78O8zMqz5u9AekH8jA==\n-----END PUBLIC KEY-----","daysValid": 365,"permissionId": "pm-delaw-avoca-v16r37fpp8koqebc"}',
    userActionHttpMethod: 'POST',
    userActionHttpPath: '/auth/pats'
  })
};

fetch('https://api.dfns.io/auth/action/init', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.dfns.io/auth/action/init",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'userActionPayload' => '{"name": "My PAT","publicKey": "-----BEGIN PUBLIC KEY-----\\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEZQt0YI2hdsFNmKJesSkAHldyPLIV\\nFLI/AhQ5eGasA7jU8tEXOb6nGvxRaTIXrgZ2NPdk78O8zMqz5u9AekH8jA==\\n-----END PUBLIC KEY-----","daysValid": 365,"permissionId": "pm-delaw-avoca-v16r37fpp8koqebc"}',
    'userActionHttpMethod' => 'POST',
    'userActionHttpPath' => '/auth/pats'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.dfns.io/auth/action/init"

	payload := strings.NewReader("{\n  \"userActionPayload\": \"{\\\"name\\\": \\\"My PAT\\\",\\\"publicKey\\\": \\\"-----BEGIN PUBLIC KEY-----\\\\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEZQt0YI2hdsFNmKJesSkAHldyPLIV\\\\nFLI/AhQ5eGasA7jU8tEXOb6nGvxRaTIXrgZ2NPdk78O8zMqz5u9AekH8jA==\\\\n-----END PUBLIC KEY-----\\\",\\\"daysValid\\\": 365,\\\"permissionId\\\": \\\"pm-delaw-avoca-v16r37fpp8koqebc\\\"}\",\n  \"userActionHttpMethod\": \"POST\",\n  \"userActionHttpPath\": \"/auth/pats\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.dfns.io/auth/action/init")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"userActionPayload\": \"{\\\"name\\\": \\\"My PAT\\\",\\\"publicKey\\\": \\\"-----BEGIN PUBLIC KEY-----\\\\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEZQt0YI2hdsFNmKJesSkAHldyPLIV\\\\nFLI/AhQ5eGasA7jU8tEXOb6nGvxRaTIXrgZ2NPdk78O8zMqz5u9AekH8jA==\\\\n-----END PUBLIC KEY-----\\\",\\\"daysValid\\\": 365,\\\"permissionId\\\": \\\"pm-delaw-avoca-v16r37fpp8koqebc\\\"}\",\n  \"userActionHttpMethod\": \"POST\",\n  \"userActionHttpPath\": \"/auth/pats\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.dfns.io/auth/action/init")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"userActionPayload\": \"{\\\"name\\\": \\\"My PAT\\\",\\\"publicKey\\\": \\\"-----BEGIN PUBLIC KEY-----\\\\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEZQt0YI2hdsFNmKJesSkAHldyPLIV\\\\nFLI/AhQ5eGasA7jU8tEXOb6nGvxRaTIXrgZ2NPdk78O8zMqz5u9AekH8jA==\\\\n-----END PUBLIC KEY-----\\\",\\\"daysValid\\\": 365,\\\"permissionId\\\": \\\"pm-delaw-avoca-v16r37fpp8koqebc\\\"}\",\n  \"userActionHttpMethod\": \"POST\",\n  \"userActionHttpPath\": \"/auth/pats\"\n}"

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

{
  "supportedCredentialKinds": [
    {
      "kind": "Fido2",
      "factor": "first",
      "requiresSecondFactor": true
    }
  ],
  "challenge": "MWM0MmY5YTQ0MDRiNzdhNTFhNzY5ODQwNWI5ZTQ4Y2RhODZiNDk3ZTYzOTE5OGYyMDcxZjBjYzk4MmQ5YzY1MA",
  "challengeIdentifier": "eyJ0e...fQNA",
  "userVerification": "required",
  "attestation": "direct",
  "externalAuthenticationUrl": "",
  "allowCredentials": {
    "key": [],
    "passwordProtectedKey": [
      {
        "type": "public-key",
        "id": "hIjkx5PqVxz8wbtuvOh2UYHEY1QXS8mMfKeEDGt-0Fo=",
        "encryptedPrivateKey": "LsXVskHYqqrKKxBC9KvqStLEmxak5Y7NaboDDlRSIW7evUJpQTT1AYvx0EsFskmriaVb3AjTCGEv7gqUKokml1USL7+dVmrUVhV+cNWtS5AorvRuZr1FMGVKFkW1pKJhFNH2e2O661UhpyXsRXzcmksA7ZN/V37ZK7ITue0gs6I="
      }
    ],
    "webauthn": [
      {
        "type": "public-key",
        "id": "c1QEdgnPLJargwzy3cbYKny4Q18u0hr97unXsF3DiE8"
      }
    ]
  }
}

Authentication

✅ Organization User (CustomerEmployee)
✅ Delegated User (EndUser)
✅ Service Account

Required Permissions

No permission required.

Authorizations

Authorization

string

header

required

Bearer Token: Used to authenticate API requests. More details how to generate the token: Authentication flows

Body

application/json

userActionHttpMethod

enum<string>

required

The HTTP method that will be used to make the request that is being signed.

Available options:

POST,

PUT,

DELETE,

GET

userActionHttpPath

string

required

The path of the request that is being signed.

Minimum string length: 1

userActionPayload

string

required

The JSON-encoded body of the request that is being signed.

userActionServerKind

enum<string>

Optional indicator of which Dfns service being called.

Available options:

Api

Response

200 - application/json

Success

challenge

string

required

Challenge (string) to be signed by the requester with his private key.

challengeIdentifier

string

required

A JWT that identifies the signing session.

supportedCredentialKinds

object[]

required

Identifies the kind of credentials that can be used to sign the user action.

Show child attributes

userVerification

enum<string>

required

Value indicating if the user should be prompted for a second factor. Can be one of the following values:

required to indicate the user must be prompted for their pin, biometrics, or another second factor option
preferred to indicate the user should be prompted for a second factor if it is supported
discouraged to indicate the user should not be prompted for their second factor unless the device requires it

Available options:

required,

preferred,

discouraged

attestation

enum<string>

required

Identifies the information needed to verify the user's signing certificate; can be one of the following:

none: indicates no attestation data is required
indirect: indicates the attestation data should be given, but that it can be generated using an Anonymization CA
direct: indicates the attestation data must be given and should be generated by the authenticator
enterprise: indicates the attestation data should include information to uniquely identify the user's device

Available options:

none,

indirect,

direct,

enterprise

allowCredentials

object

required

List of credentials that the user can use to sign the user action.

Show child attributes

externalAuthenticationUrl

string

required

Optional url containing a secret value that can be used to enable cross device/origin signing.

object

Deprecated. Should not be used.

Show child attributes

Last modified on July 9, 2026

User Action Signing flows

Create User Action Signature

⌘I

API Authorization

Identity & Access Management

Wallets & Transactions

Management

Webhooks

Create User Action Challenge

Authentication

Required Permissions

Authorizations

Body

Response

​Authentication

​Required Permissions

Authorizations

Body

Response

Authentication

Required Permissions