#!/usr/bin/env node
import { Server } from "@modelcontextprotocol/sdk/server/index.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import fetch from "node-fetch";
import type { Response } from "node-fetch";
import {
CallToolRequestSchema,
ListToolsRequestSchema,
} from "@modelcontextprotocol/sdk/types.js";
interface LgtmApiResponse {
item: {
id: number;
url: string;
created_at: string;
updated_at: string;
};
}
const server = new Server(
{
name: "mcp-server-lgtm",
version: "0.1.0",
},
{
capabilities: {
tools: {},
},
}
);
server.setRequestHandler(ListToolsRequestSchema, async () => {
return {
tools: [
{
name: "get_lgtm",
description: "Get LGTM image and show markdown code and imageurl.",
inputSchema: {
type: "object",
properties: {},
required: []
}
}
]
};
});
server.setRequestHandler(CallToolRequestSchema, async (request) => {
switch (request.params.name) {
case "get_lgtm": {
try {
const response: Response = await fetch("https://lgtm.lol/api/bot");
const data = await response.json() as LgtmApiResponse;
if (data && data.item && data.item.url) {
const imageUrl = data.item.url;
const imageId = data.item.id;
return {
content: [
{
type: "text",
text: `Markdown Code: [](https://lgtm.lol/i/${imageId})`
},
{
type: "text",
text: `View Image URL in img tag: <img src="${imageUrl}" alt="LGTM" />`
}
]
};
} else {
throw new Error("Invalid response from LGTM API");
}
} catch (error: unknown) {
const errorMessage = error instanceof Error ? error.message : String(error);
throw new Error(`Failed to fetch LGTM image: ${errorMessage}`);
}
}
default:
throw new Error("Unknown tool");
}
});
async function main() {
const transport = new StdioServerTransport();
await server.connect(transport);
}
main().catch((error) => {
console.error("Server error:", error);
process.exit(1);
});
