Smartlead Simplified MCP Server

Instructions

Implementation Reference

• src/handlers/campaign.ts:230-266 (handler)

  The handler function that validates input, makes the API GET request to /campaigns/{campaign_id}, and returns the campaign details or error.

  async function handleGetCampaign(
    args: unknown, 
    apiClient: AxiosInstance,
    withRetry: <T>(operation: () => Promise<T>, context: string) => Promise<T>
  ) {
    if (!isGetCampaignParams(args)) {
      throw new McpError(
        ErrorCode.InvalidParams,
        'Invalid arguments for smartlead_get_campaign'
      );
    }
  
    try {
      const response = await withRetry(
        async () => apiClient.get(`/campaigns/${args.campaign_id}`),
        'get campaign'
      );
  
      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/campaign.ts:119-133 (schema)

  Tool schema definition including name, description, category, and input schema requiring 'campaign_id'.

  export const GET_CAMPAIGN_TOOL: CategoryTool = {
    name: 'smartlead_get_campaign',
    description: 'Get details of a specific campaign by ID.',
    category: ToolCategory.CAMPAIGN_MANAGEMENT,
    inputSchema: {
      type: 'object',
      properties: {
        campaign_id: {
          type: 'number',
          description: 'ID of the campaign to retrieve',
        },
      },
      required: ['campaign_id'],
    },
  };

• src/index.ts:197-199 (registration)

  Registers the campaignTools array (which includes smartlead_get_campaign) with the tool registry if campaignManagement category is enabled.

  if (enabledCategories.campaignManagement) {
    toolRegistry.registerMany(campaignTools);
  }

• src/types/campaign.ts:131-138 (helper)

  Type guard function used in the handler to validate that input args contain a valid 'campaign_id' number.

  export function isGetCampaignParams(args: unknown): args is GetCampaignParams {
    return (
      typeof args === 'object' &&
      args !== null &&
      'campaign_id' in args &&
      typeof (args as { campaign_id: unknown }).campaign_id === 'number'
    );
  }

• src/handlers/campaign.ts:39-41 (registration)

  Switch case in handleCampaignTool that routes 'smartlead_get_campaign' calls to the specific handleGetCampaign function.

  case 'smartlead_get_campaign': {
    return handleGetCampaign(args, apiClient, withRetry);
  }