Google Tag Manager MCP Server

Instructions

Implementation Reference

• src/index.js:1029-1046 (handler)

  Handler logic for the 'get_tag' tool in the MCP server's CallToolRequestHandler. It calls the GTMClient's getTag method with the provided accountId, containerId, workspaceId, and tagId, then returns the JSON-formatted response.

  case 'get_tag':
    return {
      content: [
        {
          type: 'text',
          text: JSON.stringify(
            await this.gtmClient.getTag(
              args.accountId,
              args.containerId,
              args.workspaceId,
              args.tagId
            ),
            null,
            2
          ),
        },
      ],
    };

• src/index.js:205-226 (schema)

  Input schema definition for the 'get_tag' tool, specifying required string parameters: accountId, containerId, workspaceId, tagId.

  inputSchema: {
    type: 'object',
    properties: {
      accountId: {
        type: 'string',
        description: 'アカウントID',
      },
      containerId: {
        type: 'string',
        description: 'コンテナID',
      },
      workspaceId: {
        type: 'string',
        description: 'ワークスペースID',
      },
      tagId: {
        type: 'string',
        description: 'タグID',
      },
    },
    required: ['accountId', 'containerId', 'workspaceId', 'tagId'],
  },

• src/index.js:202-227 (registration)

  Registration of the 'get_tag' tool in the list of tools returned by ListToolsRequestHandler, including name, description, and input schema.

  {
    name: 'get_tag',
    description: '指定されたタグの詳細を取得します',
    inputSchema: {
      type: 'object',
      properties: {
        accountId: {
          type: 'string',
          description: 'アカウントID',
        },
        containerId: {
          type: 'string',
          description: 'コンテナID',
        },
        workspaceId: {
          type: 'string',
          description: 'ワークスペースID',
        },
        tagId: {
          type: 'string',
          description: 'タグID',
        },
      },
      required: ['accountId', 'containerId', 'workspaceId', 'tagId'],
    },
  },

• src/gtm-client.js:136-142 (helper)

  Supporting method in GTMClient class that performs the actual Google Tag Manager API call to retrieve tag details using the tagmanager service.

  async getTag(accountId, containerId, workspaceId, tagId) {
    await this.ensureAuth();
    const response = await this.tagmanager.accounts.containers.workspaces.tags.get({
      path: `accounts/${accountId}/containers/${containerId}/workspaces/${workspaceId}/tags/${tagId}`
    });
    return response.data;
  }