To list all deals, the following permissions are required.

Deal permission: the user should have permission to manage deals.
Pipeline-specific permission: the user should have permission to manage the pipeline that the deals belong to. If the user does not have the permission to manage the pipeline, limited deal data are returned with only id, title, and isDisabled set to 1. If the response contains both permitted pipeline deals and non-permitted pipeline deals, full deal data are returned for deals belonging to permitted pipelines and limited data for deals belonging to non-permitted pipelines.

{
  "deals": [
    {
      "owner": "1",
      "contact": "39",
      "organization": "20",
      "group": "1",
      "stage": "2",
      "title": "Able Hyena",
      "description": "Article do skill hope.",
      "percent": "0",
      "cdate": "2019-09-06T11:29:48-05:00",
      "mdate": "2019-09-06T11:29:48-05:00",
      "nextdate": null,
      "nexttaskid": null,
      "value": "1872151",
      "currency": "usd",
      "winProbability": 44,
      "winProbabilityMdate": "2019-10-05T12:27:22-05:00",
      "status": "0",
      "activitycount": "1",
      "nextdealid": "46",
      "edate": "2019-11-22 14:15:37",
      "links": {
      "dealActivities": "/api/3/deals/46/dealActivities",
      "contact":/api/3/deals/46/contact",
      "contactDeals": "/api/3/deals/46/contactDeals",
      "group": "/api/3/deals/46/group",
      "nextTask": "/api/3/deals/46/nextTask",
      "notes": "/api/3/deals/46/notes",
      "account": "/api/3/deals/46/account",
      "customerAccount": "/api/3/deals/46/customerAccount",
      "organization": "/api/3/deals/46/organization",
      "owner": "/api/3/deals/46/owner",
      "scoreValues": "/api/3/deals/46/scoreValues",
      "stage": "/api/3/deals/46/stage",
      "tasks": "api/3/deals/46/tasks",
      "dealCustomFieldData": "/api/3/deals/46/dealCustomFieldData"
		},
    "id": "46",
    "isDisabled": false,
    "account": "20",
    "customerAccount": "20"
		},
    {
      "activitycount": "62",
      "cdate": "2017-01-20T09:28:02-06:00",
      "contact": "44",
      "currency": "usd",
      "edate": "0000-00-00 00:00:00",
      "group": "2",
      "hash": "d6ca7d0b",
      "id": "1",
      "links": {
        "dealActivities": "/api/3/deals/1/dealActivities",
        "contact": "/api/3/deals/1/contact",
        "contactDeals": "/api/3/deals/1/contactDeals",
        "group": "/api/3/deals/1/group",
        "nextTask": "/api/3/deals/1/nextTask",
        "notes": "/api/3/deals/1/notes",
        "organization": "/api/3/deals/1/organization",
        "owner": "/api/3/deals/1/owner",
        "scoreValues": "/api/3/deals/1/scoreValues",
        "stage": "/api/3/deals/1/stage",
        "tasks": "/api/3/deals/1/tasks"
      },
      "mdate": "2017-02-06T12:21:12-06:00",
      "nextTask": "2",
      "nextdate": "2017-02-06T12:00:00-06:00",
      "nextdealid": "1",
      "nexttaskid": "2",
      "organization": null,
      "owner": "1",
      "percent": "0",
      "stage": "3",
      "status": "1",
      "title": "Test Deal",
      "description": "A deal that will make a big difference",
      "value": "10000"
    },
    {
        "id": "2",
        "isDisabled": 1,
        "title": "Demo Requested"
    }
  ],
  "meta": {
    "currencies": {
      "USD": {
        "currency": "USD",
        "total": "3",
        "value": "30000"
      }
    },
    "total": 3
  }
}