---
slug: "trpc-trpc-mcp"
source_type: "readme"
source_url: "https://cdn.jsdelivr.net/gh/Jacse/trpc-mcp@main/README.md"
repo: "https://github.com/Jacse/trpc-mcp"
source_file: "README.md"
branch: "main"
---
# tRPC <-> MCP

Serve tRPC routes via MCP.

## Usage

### 2. Add to meta
```ts
import { initTRPC } from '@trpc/server';
import { type McpMeta } from 'trpc-to-openapi';

const t = initTRPC.meta<McpMeta>().create();
```

### 3. Enable for routes
```ts
export const appRouter = t.router({
  sayHello: t.procedure
    .meta({ openapi: { enabled: true, description: 'Greet the user' } })
    .input(z.object({ name: z.string() }))
    .output(z.object({ greeting: z.string() }))
    .query(({ input }) => {
      return { greeting: `Hello ${input.name}!` };
    });
});
```
### 4. Serve
```ts
import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
import { createMcpServer } from 'trpc-mcp';

const mcpServer = createMcpServer(
  { name: 'trpc-mcp-example', version: '0.0.1' },
  appRouter,
);

const transport = new StdioServerTransport();
await mcpServer.connect(transport);
```