Google Tag Manager MCP Server

Instructions

Implementation Reference

• src/index.js:948-960 (handler)

  MCP server handler for 'get_container' tool: extracts arguments, calls GTMClient.getContainer, and returns JSON response.

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

• src/index.js:99-112 (schema)

  Input schema definition for the 'get_container' tool, specifying required accountId and containerId parameters.

  inputSchema: {
    type: 'object',
    properties: {
      accountId: {
        type: 'string',
        description: 'アカウントID',
      },
      containerId: {
        type: 'string',
        description: 'コンテナID',
      },
    },
    required: ['accountId', 'containerId'],
  },

• src/index.js:96-113 (registration)

  Tool registration in ListTools response, including name, description, and input schema.

  {
    name: 'get_container',
    description: '指定されたコンテナ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',
        },
      },
      required: ['accountId', 'containerId'],
    },
  },

• src/gtm-client.js:66-72 (helper)

  Core implementation: authenticates and calls Google Tag Manager API to retrieve container details.

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