Children

Return the immediate child organizations of one org (one level down), ordered by name. Use it to expand one node of the tree without pulling the full detail response.

Response

{
  "data": [
    { "organization_id": 300000188, "fh_key": "300000188", "cgac": "017",
      "canonical_name": "DEPT OF THE NAVY", "short_name": "USN", "type": "AGENCY",
      "hierarchy_level": 2, "parent_id": 100000000, "is_active": true }
  ],
  "count": 1
}

Example

curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://govconapi.com/api/v1/federal-hierarchy/100000000/children"

Unknown or leaf orgs return 200 empty, not 404

Immediate children only, not the full subtree. A leaf org (or an unknown integer ID) returns { "data": [], "count": 0 } with a 200, not a 404; if you need to confirm the org exists, use the detail endpoint instead.