FetchSERP MCP Server

Instructions

Implementation Reference

• index.js:676-677 (handler)

  Handler implementation for the 'generate_wordpress_content' tool. It calls the shared makeRequest method to proxy the tool arguments to the external FetchSERP API endpoint '/api/v1/generate_wordpress_content'.

  case 'generate_wordpress_content':
    return await this.makeRequest('/api/v1/generate_wordpress_content', 'GET', args, null, token);

• index.js:465-483 (schema)

  Input schema for the generate_wordpress_content tool, defining required user_prompt and system_prompt, optional ai_model.

  inputSchema: {
    type: 'object',
    properties: {
      user_prompt: {
        type: 'string',
        description: 'The user prompt',
      },
      system_prompt: {
        type: 'string',
        description: 'The system prompt',
      },
      ai_model: {
        type: 'string',
        description: 'The AI model (default: gpt-4.1-nano)',
        default: 'gpt-4.1-nano',
      },
    },
    required: ['user_prompt', 'system_prompt'],
  },

• index.js:462-484 (registration)

  Registration of the generate_wordpress_content tool in the MCP server's listTools response, including name, description, and schema.

  {
    name: 'generate_wordpress_content',
    description: 'Generate WordPress content using AI with customizable prompts and models',
    inputSchema: {
      type: 'object',
      properties: {
        user_prompt: {
          type: 'string',
          description: 'The user prompt',
        },
        system_prompt: {
          type: 'string',
          description: 'The system prompt',
        },
        ai_model: {
          type: 'string',
          description: 'The AI model (default: gpt-4.1-nano)',
          default: 'gpt-4.1-nano',
        },
      },
      required: ['user_prompt', 'system_prompt'],
    },
  },

• index.js:565-613 (helper)

  Shared helper function makeRequest that performs authenticated HTTP requests to the FetchSERP API base URL, used by the generate_wordpress_content handler and other tools.

  async makeRequest(endpoint, method = 'GET', params = {}, body = null, token = null) {
    const fetchserpToken = token || process.env.FETCHSERP_API_TOKEN;
    
    if (!fetchserpToken) {
      throw new McpError(
        ErrorCode.InvalidRequest,
        'FETCHSERP_API_TOKEN is required'
      );
    }
  
    const url = new URL(`${API_BASE_URL}${endpoint}`);
    
    // Add query parameters for GET requests
    if (method === 'GET' && Object.keys(params).length > 0) {
      Object.entries(params).forEach(([key, value]) => {
        if (value !== undefined && value !== null) {
          if (Array.isArray(value)) {
            value.forEach(v => url.searchParams.append(`${key}[]`, v));
          } else {
            url.searchParams.append(key, value.toString());
          }
        }
      });
    }
  
    const fetchOptions = {
      method,
      headers: {
        'Authorization': `Bearer ${fetchserpToken}`,
        'Content-Type': 'application/json',
      },
    };
  
    if (body && method !== 'GET') {
      fetchOptions.body = JSON.stringify(body);
    }
  
    const response = await fetch(url.toString(), fetchOptions);
    
    if (!response.ok) {
      const errorText = await response.text();
      throw new McpError(
        ErrorCode.InternalError,
        `API request failed: ${response.status} ${response.statusText} - ${errorText}`
      );
    }
  
    return await response.json();
  }