70 lines
1.4 KiB
JavaScript
70 lines
1.4 KiB
JavaScript
// mcp_calculator_server.js - Sample MCP Calculator Server implementation in JavaScript
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import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
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import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
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import { z } from "zod";
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// Create an MCP server
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const server = new McpServer({
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name: "Calculator MCP Server",
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version: "1.0.0"
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});
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// Define calculator tools for each operation
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server.tool(
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"add",
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{
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a: z.number(),
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b: z.number()
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},
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async ({ a, b }) => ({
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content: [{ type: "text", text: String(a + b) }]
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})
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);
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server.tool(
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"subtract",
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{
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a: z.number(),
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b: z.number()
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},
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async ({ a, b }) => ({
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content: [{ type: "text", text: String(a - b) }]
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})
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);
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server.tool(
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"multiply",
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{
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a: z.number(),
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b: z.number()
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},
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async ({ a, b }) => ({
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content: [{ type: "text", text: String(a * b) }]
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})
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);
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server.tool(
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"divide",
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{
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a: z.number(),
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b: z.number()
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},
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async ({ a, b }) => {
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if (b === 0) {
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return {
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content: [{ type: "text", text: "Error: Cannot divide by zero" }],
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isError: true
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};
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}
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return {
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content: [{ type: "text", text: String(a / b) }]
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};
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}
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);
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// Connect the server using stdio transport
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const transport = new StdioServerTransport();
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server.connect(transport).catch(console.error);
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console.log("Calculator MCP Server started");
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