Updated Brave

This commit is contained in:
Mahesh Murag
2024-11-20 22:16:10 -05:00
parent 7e89d8323f
commit afcbee06aa
4 changed files with 0 additions and 255 deletions

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# DuckDuckGo MCP Server
MCP server providing search functionality via DuckDuckGo's HTML interface.
## Components
### Resources
Single resource endpoint for search interface:
```duckduckgo://search```
### Tools
- **duckduckgo_search**
- Performs a search using DuckDuckGo and returns the top search results
- Inputs:
- `query` (string, required): The search query to look up
- `numResults` (number, optional): Number of results to return (default: 10)
- Returns titles, snippets, and URLs of the search results
## Usage Example
```javascript
// Example tool call
{
"name": "duckduckgo_search",
"arguments": {
"query": "your search query",
"numResults": 10
}
}
// Example response format:
{
"content": [{
"type": "text",
"text": "Title: Result Title\nSnippet: Result description...\nURL: https://example.com\n\nTitle: Another Result\n..."
}]
}
```

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#!/usr/bin/env node
import { Server } from "@modelcontextprotocol/sdk/server/index.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import {
CallToolRequestSchema,
ListResourcesRequestSchema,
ListToolsRequestSchema,
ReadResourceRequestSchema,
Tool,
} from "@modelcontextprotocol/sdk/types.js";
import fetch from "node-fetch";
import { JSDOM } from "jsdom";
const SEARCH_TOOL: Tool = {
name: "duckduckgo_search",
description:
"Performs a search using DuckDuckGo and returns the top search results. " +
"Returns titles, snippets, and URLs of the search results. " +
"Use this tool to search for current information on the internet.",
inputSchema: {
type: "object",
properties: {
query: {
type: "string",
description: "The search query to look up",
},
numResults: {
type: "number",
description: "Number of results to return (default: 10)",
default: 10,
},
},
required: ["query"],
},
};
const server = new Server(
{
name: "example-servers/duckduckgo",
version: "0.1.0",
},
{
capabilities: {
tools: {},
resources: {},
},
},
);
server.setRequestHandler(ListResourcesRequestSchema, async () => ({
resources: [
{
uri: "duckduckgo://search",
mimeType: "text/plain",
name: "DuckDuckGo Search Results",
},
],
}));
server.setRequestHandler(ReadResourceRequestSchema, async (request) => {
if (request.params.uri.toString() === "duckduckgo://search") {
return {
contents: [
{
uri: "duckduckgo://search",
mimeType: "text/plain",
text: "DuckDuckGo search interface",
},
],
};
}
throw new Error("Resource not found");
});
server.setRequestHandler(ListToolsRequestSchema, async () => ({
tools: [SEARCH_TOOL],
}));
async function performSearch(query: string, numResults: number = 10) {
const url = `https://html.duckduckgo.com/html/?q=${encodeURIComponent(query)}`;
const headers = {
"User-Agent":
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36",
};
const response = await fetch(url, { headers });
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
const html = await response.text();
const dom = new JSDOM(html);
const document = dom.window.document;
const results = [];
const resultElements = document.querySelectorAll(".result");
for (let i = 0; i < Math.min(numResults, resultElements.length); i++) {
const result = resultElements[i];
const titleElem = result.querySelector(".result__title");
const snippetElem = result.querySelector(".result__snippet");
const urlElem = result.querySelector(".result__url");
if (titleElem && snippetElem) {
results.push({
title: titleElem.textContent?.trim() || "",
snippet: snippetElem.textContent?.trim() || "",
url: urlElem?.getAttribute("href") || "",
});
}
}
return results;
}
server.setRequestHandler(CallToolRequestSchema, async (request) => {
if (request.params.name === "duckduckgo_search") {
try {
const { query, numResults = 10 } = request.params.arguments as {
query: string;
numResults?: number;
};
const results = await performSearch(query, numResults);
const formattedResults = results
.map(
(result) =>
`Title: ${result.title}\nSnippet: ${result.snippet}\nURL: ${result.url}\n`,
)
.join("\n");
return {
content: [
{
type: "text",
text: formattedResults || "No results found.",
},
],
isError: false,
};
} catch (error) {
return {
content: [
{
type: "text",
text: `Error performing search: ${error instanceof Error ? error.message : String(error)}`,
},
],
isError: true,
};
}
}
return {
content: [
{
type: "text",
text: `Unknown tool: ${request.params.name}`,
},
],
isError: true,
};
});
async function runServer() {
const transport = new StdioServerTransport();
await server.connect(transport);
console.error("DuckDuckGo MCP Server running on stdio");
}
runServer().catch((error) => {
console.error("Fatal error running server:", error);
process.exit(1);
});

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{
"name": "@modelcontextprotocol/server-duckduckgo",
"version": "0.1.0",
"description": "MCP server for DuckDuckGo search",
"license": "MIT",
"author": "Anthropic, PBC (https://anthropic.com)",
"homepage": "https://modelcontextprotocol.io",
"bugs": "https://github.com/modelcontextprotocol/servers/issues",
"type": "module",
"bin": {
"mcp-server-duckduckgo": "dist/index.js"
},
"files": [
"dist"
],
"scripts": {
"build": "tsc && shx chmod +x dist/*.js",
"prepare": "npm run build",
"watch": "tsc --watch"
},
"dependencies": {
"@modelcontextprotocol/sdk": "0.5.0",
"jsdom": "^24.1.3",
"node-fetch": "^3.3.2"
},
"devDependencies": {
"@types/jsdom": "^21.1.6",
"@types/node": "^20.10.0",
"shx": "^0.3.4",
"typescript": "^5.6.2"
}
}

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{
"extends": "../../tsconfig.json",
"compilerOptions": {
"outDir": "./dist",
"rootDir": "."
},
"include": [
"./**/*.ts"
]
}