Create MCP Servers

MCP servers enable your agents to fetch real-time information and take action on your systems, services, and applications. This guide covers multiple approaches to creating and deploying MCP servers for your agents.

Out-of-the-box servers

The fastest way to get started is by connecting to existing MCP servers provided directly by SaaS providers that offer them.

MCPs with OAuth 2.1/PKCE support

These servers often implement OAuth 2.1 with PKCE for secure authentication that allow for "1-click" authentication without the need to manually create API keys or credentials.

Here's a list of popular service-maintained MCP Servers that support "1-click" install with OAuth 2.1/PKCE authentication.

To add them to your Inkeep Project, use the Visual Builder.

Build Your Own

Creating custom MCP servers gives you complete control over functionality and integration with your internal systems.

Using Vercel Template

Vercel provides a Next.js MCP template that makes it easy to deploy MCP servers with serverless functions.

Vercel's template provides:

• Easy to deploy staging environments
• Serverless deployment for automatic scaling with Vercel Functions
• SSE transport for eal-time streaming (requires Redis for state management)
• Next.js integration so MCPs can be added as part of existing Next.js apps

Quick start

# Clone the template
git clone https://github.com/vercel-labs/mcp-for-next.js
cd mcp-for-next.js

# Install dependencies
pnpm install

# Configure your tools in app/[transport]/route.ts
# Deploy to Vercel
vercel deploy

Using Gram

Speakeasy Gram provides a lightweight open source framework for repurposing and remixing existing APIs into MCP Servers.

Using Anthropic's MCP SDKs

See Anthropic's official MCP SDKs for low-level building blocks for creating MCP servers in multiple languages like TypeScript, Python and Go.

TypeScript example

import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
import { z } from 'zod';

const server = new McpServer({
  name: 'custom-mcp-server',
  version: '1.0.0',
});

server.registerTool(
  'custom_tool',
  {
    title: 'Custom Tool',
    description: 'A custom tool for your specific needs',
    inputSchema: { input: z.string() },
  },
  async ({ input }) => ({
    content: [{ type: 'text', text: `Processed: ${input}` }],
  }),
);

const transport = new StdioServerTransport();
await server.connect(transport);

Use MCP Server Libraries

For rapid development, leverage existing MCP server libraries that provide pre-built integrations.

Composio

Composio offers a platform for building and managing MCP servers with access to 10,000+ pre-built tools and integrations.

Quick integration

Follow Composio's MCP Gateway setup to obtain your MCP server URL and credentials. Then register it as a tool in your project:

import { mcpTool } from '@inkeep/agents-sdk';

const composioTool = mcpTool({
  id: 'composio-tools',
  name: 'Composio Integration',
  description: 'Access popular SaaS tools via Composio',
  serverUrl: 'YOUR_COMPOSIO_MCP_URL', // From Composio dashboard
  // Optionally: credentialReferenceId: 'your-credential-id',
});

Next Steps

Once you create your MCP server, register it and manage its credentials: