ListNacosMcpServers - Microservices Engine - Alibaba Cloud Documentation Center

Retrieves a list of MCP servers.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

mse:ListNacosMcpServers

list

*All Resource

*

None

Request parameters

Parameter	Type	Required	Description	Example
InstanceId	string	No	The instance ID.	mse-cn-st21ri2****
NamespaceId	string	No	The namespace ID.	5e3ee449-b5c0-4aee-b857-32c0acbebf26
Search	string	No	The query pattern.	blur
Name	string	No	The MCP server name.	test
PageSize	integer	No	The page size.	10
PageNum	integer	No	The page number.	1
AcceptLanguage	string	No	The language of the response. Valid values: zh (default): Chinese, en: English.	zh

Response elements

Element	Type	Description	Example
	object	RestResult<Page>
RequestId	string	The request ID.	ADDD8AB7-8D1C-4697-A83E-410D2607****
Data	object	The returned data structure.
TotalCount	integer	The total number of entries.	4
PageNumber	integer	pageNumber.	1
PagesAvailable	integer	pagesAvailable.	1
PageItems	array<object>	The paginated list of MCP servers.
	array<object>	The MCP server information.
Id	string		2385420b-6176-4a37-aba4-d3d382e4bb84
Name	string		test
Description	string		test
Protocol	string		stdio
FrontProtocol	string		mcp-sse
Capabilities	array
	string		TOOL
VersionDetail	object
Version	string		1.0.0
Release_date	string		2025-07-16
Is_latest	boolean		true
Version	string		1.1.0

Examples

Success response

JSON format

{
  "RequestId": "ADDD8AB7-8D1C-4697-A83E-410D2607****",
  "Data": {
    "TotalCount": 4,
    "PageNumber": 1,
    "PagesAvailable": 1,
    "PageItems": [
      {
        "Id": "2385420b-6176-4a37-aba4-d3d382e4bb84",
        "Name": "test",
        "Description": "test ",
        "Protocol": "stdio",
        "FrontProtocol": "mcp-sse",
        "Capabilities": [
          "TOOL"
        ],
        "VersionDetail": {
          "Version": "1.0.0",
          "Release_date": "2025-07-16",
          "Is_latest": true
        },
        "Version": "1.1.0"
      }
    ]
  }
}

Error codes

HTTP status code	Error code	Error message	Description
400	IllegalRequest	Invalid request:%s	Invalid request: %s
400	InvalidParameter	Parameter error:%s	Request parameter error: %s
500	InternalError	Console error. Try again later:%s	Console error. Try again later: %s
403	NoPermission	You are not authorized to perform this operation:%s	You do not have the permission to use this interface:%s
404	NotFound	Not found:%s	The resource does not exist:%s

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.