Smartlead Simplified MCP Server

Instructions

Implementation Reference

• src/handlers/smartDelivery.ts:756-795 (handler)

  Core execution logic: validates input params, calls SmartDelivery API `/spam-test/report/${spam_test_id}/blacklist`, returns JSON response or formatted error.

  async function handleGetBlacklist(
    args: unknown, 
    apiClient: AxiosInstance,
    withRetry: <T>(operation: () => Promise<T>, context: string) => Promise<T>
  ) {
    if (!isBlacklistParams(args)) {
      throw new McpError(
        ErrorCode.InvalidParams,
        'Invalid arguments for smartlead_get_blacklist'
      );
    }
  
    try {
      const smartDeliveryClient = createSmartDeliveryClient(apiClient);
      const { spam_test_id } = args;
      
      const response = await withRetry(
        async () => smartDeliveryClient.get(`/spam-test/report/${spam_test_id}/blacklist`),
        'get blacklist'
      );
  
      return {
        content: [
          {
            type: 'text',
            text: JSON.stringify(response.data, null, 2),
          },
        ],
        isError: false,
      };
    } catch (error: any) {
      return {
        content: [{ 
          type: 'text', 
          text: `API Error: ${error.response?.data?.message || error.message}` 
        }],
        isError: true,
      };
    }
  }

• src/tools/smartDelivery.ts:376-390 (schema)

  Tool metadata and input schema definition (requires spam_test_id). Included in smartDeliveryTools array for registration.

  export const GET_BLACKLIST_TOOL: CategoryTool = {
    name: 'smartlead_get_blacklist',
    description: 'Get the list of all blacklists per IP per email sent.',
    category: ToolCategory.SMART_DELIVERY,
    inputSchema: {
      type: 'object',
      properties: {
        spam_test_id: {
          type: 'integer',
          description: 'ID of the spam test to get the blacklist information for',
        },
      },
      required: ['spam_test_id'],
    },
  };

• src/types/smartDelivery.ts:335-342 (schema)

  Type guard function for validating tool input parameters (object with numeric spam_test_id).

  export function isBlacklistParams(args: unknown): args is BlacklistParams {
    return (
      typeof args === 'object' &&
      args !== null &&
      'spam_test_id' in args &&
      typeof (args as BlacklistParams).spam_test_id === 'number'
    );
  }

• src/index.ts:217-219 (registration)

  Registers the smartDeliveryTools array (containing smartlead_get_blacklist) with the MCP tool registry when smartDelivery category is license-enabled.

  if (enabledCategories.smartDelivery) {
    toolRegistry.registerMany(smartDeliveryTools);
  }

• src/handlers/smartDelivery.ts:89-91 (registration)

  Dispatches to specific handler within the SmartDelivery tool handler switch statement.

  case 'smartlead_get_blacklist': {
    return handleGetBlacklist(args, apiClient, withRetry);
  }