curl --request POST \
  --url 'https://edi.stateset.com/v1/partners/{id}/onboarding/start' \
  --header 'Authorization: Bearer YOUR_API_KEY'

{
  "blocker": "string",
  "created_at": "2026-07-24T12:00:00Z",
  "history": [
    {
      "actor": "string",
      "at": "2026-07-24T12:00:00Z",
      "from_stage": {
        "0": "c",
        "1": "o",
        "2": "n",
        "3": "n",
        "4": "e",
        "5": "c",
        "6": "t",
        "7": "e",
        "8": "d"
      },
      "note": "string",
      "to_stage": "connected"
    }
  ],
  "partner_id": "string",
  "stage": "connected",
  "tenant_id": "string",
  "updated_at": "2026-07-24T12:00:00Z"
}