Smartlead Simplified MCP Server

Instructions

Implementation Reference

• src/handlers/lead.ts:110-146 (handler)

  Core handler function for 'smartlead_get_lead': validates input parameters using isGetLeadParams, fetches lead details via API GET /leads/{lead_id} with retry logic, returns JSON-formatted response or error message.

  async function handleGetLead(
    args: unknown,
    apiClient: AxiosInstance,
    withRetry: <T>(operation: () => Promise<T>, context: string) => Promise<T>
  ) {
    if (!isGetLeadParams(args)) {
      throw new McpError(
        ErrorCode.InvalidParams,
        'Invalid arguments for smartlead_get_lead'
      );
    }
  
    try {
      const response = await withRetry(
        async () => apiClient.get(`/leads/${args.lead_id}`),
        'get lead'
      );
  
      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/lead.ts:43-57 (schema)

  Tool definition including name, description, category, and input schema requiring 'lead_id' as a number.

  export const GET_LEAD_TOOL: CategoryTool = {
    name: 'smartlead_get_lead',
    description: 'Get details of a specific lead by ID.',
    category: ToolCategory.LEAD_MANAGEMENT,
    inputSchema: {
      type: 'object',
      properties: {
        lead_id: {
          type: 'number',
          description: 'ID of the lead to retrieve',
        },
      },
      required: ['lead_id'],
    },
  };

• src/index.ts:207-209 (registration)

  Registers the array of lead tools (leadTools), which includes 'smartlead_get_lead', into the tool registry if leadManagement category is enabled.

  if (enabledCategories.leadManagement) {
    toolRegistry.registerMany(leadTools);
  }

• src/types/lead.ts:115-122 (schema)

  Runtime type guard (validator) for GetLeadParams, ensuring 'lead_id' is present and a number.

  export function isGetLeadParams(args: unknown): args is GetLeadParams {
    return (
      typeof args === 'object' &&
      args !== null &&
      'lead_id' in args &&
      typeof (args as { lead_id: unknown }).lead_id === 'number'
    );
  }

• src/index.ts:25-25 (registration)

  Imports the leadTools array containing the 'smartlead_get_lead' tool definition for registration.

  import { leadTools } from './tools/lead.js';