Reference / Os Access

Create a signed-approval challenge for a pending device login (identified by its user code).

POST /v1/os/login/challenge

Secret API key operationId: create_login_challenge

Authorization

Server-to-server. Send a secret key as a Bearer token plus the x-application-id header.

Request body · required

user_code string required

Responses

201 Challenge

{
  "data": {
    "action": "string",
    "canonical": "string",
    "context": {},
    "created_at": "2026-01-15T09:30:00Z",
    "expires_at": "2026-01-15T09:30:00Z",
    "host_id": "018f3c4a-7b2e-7c1d-9e0a-1f2b3c4d5e6f",
    "id": "018f3c4a-7b2e-7c1d-9e0a-1f2b3c4d5e6f",
    "nonce": "string",
    "responded_at": "2026-01-15T09:30:00Z",
    "status": "string"
  },
  "error": {
    "code": "string",
    "message": "string"
  },
  "meta": {
    "timestamp": "string"
  },
  "success": false
}

404 No pending login for that code

Request

curl -X POST "https://api.identrahq.com/v1/os/login/challenge" \
  -H "Content-Type: application/json" \
  -d '{
  "user_code": "abcd-efgh"
}'

Try it

live request

POST https://api.identrahq.com/v1/os/login/challenge

Request body

application/json