Build production-ready MCP servers in hours, not weeks.

MCP is the new standard for AI agent tools — but building servers is painful:

• 📖 Spec is 100+ pages — Hours of reading before writing a single line
• 🐛 Error handling is non-obvious — Timeouts, streaming, partial failures all behave differently
• 🔒 Security is an afterthought — Most tutorials skip auth, input validation, and rate limiting
• 🔀 Dual-language chaos — Need both TypeScript AND Python patterns? Good luck finding both

Result: Your first MCP server takes 3-5 days instead of 3-5 hours.

MCP Builder gives you battle-tested patterns so you ship servers, not read specs:

# Via Vercel Skills CLI
npx skills add aptratcn/skill-mcp-builder

# Or copy directly
cp SKILL.md ~/.claude/skills/mcp-builder/

Model Context Protocol is the USB-C of AI tools — one standard, infinite integrations. Every agent tool you build works across Claude Code, Codex, Cursor, Gemini CLI, and 40+ more.

Without MCP:  Tool → Claude Code only
With MCP:     Tool → Claude Code + Cursor + Codex + Gemini + 40+ more

import { McpServer } from "@modelcontextprotocol/sdk";

const server = new McpServer({ name: "my-tool", version: "1.0.0" });

server.tool("search", { query: z.string() }, async ({ query }) => {
  const results = await searchDatabase(query);
  return { content: [{ type: "text", text: JSON.stringify(results) }] };
});

from mcp.server import Server

server = Server("my-tool")

@server.tool("search")
async def search(query: str) -> str:
    results = await search_database(query)
    return json.dumps(results)

• MCP Security Audit — Audit your MCP servers for security issues
• Token Budget Guard — Optimize MCP token usage
• Skill Health Monitor — Monitor your skill collection health

Part of Awesome Zero-Dependency Skills