Building an MCP Server with 24 AI Tools: A Developer's Journey

#ai #programming #webdev #tutorial

I just shipped AI SuperHeroes — an MCP server that packs 24 AI-powered tools into a single Streamable HTTP endpoint. Here's what I built and why MCP changes everything for developers.

The Problem

Developers and solopreneurs are drowning in SaaS subscriptions. Need a resume? One tool. SEO audit? Another. Shopify optimization? Yet another. Each with its own API, auth flow, and pricing.

The Solution: One MCP Server, 24 Tools

MCP (Model Context Protocol) lets you bundle multiple tools behind a single endpoint. Connect once, use everything. Here's what AI SuperHeroes includes:

Resume & Career Suite — ATS-optimized resume builder, cover letter generator, interview prep coach

SEO Toolkit — Full site audits, keyword research, meta tag optimization, content scoring

E-Commerce Tools — Shopify store analyzer, product description writer, pricing optimizer

Website Builder — Generate landing pages, portfolios, and business sites from prompts

URL Shortener — Branded short links with click analytics

AI Agent Creator — Spin up custom AI agents for any workflow

Tech Stack

Runtime: Node.js on Replit
Protocol: MCP Streamable HTTP (JSON-RPC 2.0)
Endpoint: POST /api/mcp with full tool discovery
Registry: Listed on Smithery, mcp.so, Glama.ai

How It Works

Connect to https://super-hero-api.replit.app/api/mcp from any MCP client (Claude Desktop, Cursor, etc.) and you'll see all 24 tools available instantly.

The server implements the full MCP protocol — initialize, tools/list, tools/call — so any compliant client can discover and invoke tools without additional configuration.