curl --request GET \
  --url https://api.example.com/api/tools/catalog/{tool_key}

{
  "tool_key": "<string>",
  "display_name": "<string>",
  "description": "<string>",
  "functions": [
    {
      "name": "<string>",
      "description": "<string>",
      "parameters_json_schema": {},
      "allowed_call_types": [
        "<string>"
      ]
    }
  ],
  "icon": "<string>",
  "api_base_url": "<string>",
  "agent_config_schema": {
    "type": "object",
    "properties": {},
    "required": [
      "<string>"
    ]
  },
  "post_call_task": "<string>"
}