Vercel adapter for MCP Fusion. Deploy your MCP server as a Next.js App Router route handler or standalone Vercel Function — Edge Runtime or Node.js, stateless JSON-RPC, zero config.

Quick Start (Next.js App Router)

// app/api/mcp/route.ts
import { createVercelHandler } from '@vinkius-core/mcp-fusion-vercel';
import { registry } from '@/server/registry';

const handler = createVercelHandler(registry, {
    contextFactory: () => ({
        db: prisma,
        role: 'ADMIN',
    }),
});

export const POST = handler;

Features

| Feature | Description | |---------|-------------| | App Router Native | Works as a Next.js route handler (app/api/mcp/route.ts) | | Edge Runtime | Deploy to Vercel Edge Functions for global low-latency | | Node.js Runtime | Full Node.js support for Prisma, file system, etc. | | Stateless JSON-RPC | Each request is a standalone invocation | | Zero Config | vercel deploy and it works |

Edge Runtime

// app/api/mcp/route.ts
export const runtime = 'edge';

const handler = createVercelHandler(registry, {
    contextFactory: () => ({
        kv: process.env.KV_REST_API_URL,
    }),
});

export const POST = handler;

Installation

npm install @vinkius-core/mcp-fusion-vercel

Peer Dependencies

| Package | Version | |---------|---------| | @vinkius-core/mcp-fusion | ^2.0.0 | | @modelcontextprotocol/sdk | ^1.12.0 |

Requirements

• Next.js 14+ (App Router) or standalone Vercel Functions
• MCP Fusion ≥ 2.0.0 (peer dependency)

License

Apache-2.0