curl --request DELETE \
  --url https://api.natural.co/customers/invitations/{invitationId} \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "type": "agentDelegationInvitation",
    "id": "adi_550e8400e29b41d4a716446655440000",
    "attributes": {
      "developerName": "Acme Co",
      "email": "ops@acme.com",
      "phone": null,
      "url": "https://www.natural.co/connect/adi_550e8400e29b41d4a716446655440000",
      "agentName": "Invoice Agent",
      "permissions": [
        "payments.read"
      ],
      "limits": {
        "perTransaction": 100000
      },
      "status": "CANCELED",
      "effectiveStatus": "CANCELED",
      "expiresAt": "2026-01-12T10:15:00.000Z",
      "acceptedAt": null,
      "declinedAt": null,
      "cancelReason": "DEVELOPER_REVOKED",
      "tags": {
        "campaign": "q3_reactivation"
      },
      "createdAt": "2026-01-05T10:15:00.000Z",
      "updatedAt": "2026-01-05T10:20:00.000Z"
    },
    "relationships": {
      "agent": {
        "data": {
          "type": "agent",
          "id": "agt_3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f"
        }
      },
      "customerParty": {
        "data": null
      }
    }
  },
  "meta": {
    "deleted": true
  }
}