ReActMCP MCP Server

ReActMCP Web Search is an MCP (Model Context Protocol) server that integrates web search capabilities into your AI assistant framework. It leverages

Local serverstdioPython

What is the ReActMCP MCP server?

Reactmcp mcp server lets Claude, Cursor and other MCP clients work with ReActMCP directly. ReActMCP Web Search is an MCP (Model Context Protocol) server that integrates web search capabilities into your AI assistant framework. It leverages the Exa API to perform both basic and advanced web searches, returning real-time, markdown-formatted results including titles, URLs, publication.

What ReActMCP does

ReActMCP Web Search is an MCP (Model Context Protocol) server that integrates web search capabilities into your AI assistant framework. It leverages the Exa API to perform both basic and advanced web searches, returning real-time, markdown-formatted results including titles, URLs, publication dates, and content summaries.

Key capabilities

  • Basic Web Search — Perform simple searches using the Exa API
  • Advanced Web Search — Use additional filtering options such as domain restrictions, text inclusion requirements, and date filters
  • Markdown Output — Format search results in Markdown to easily incorporate titles, URLs, and summaries
  • MCP Integration — Easily add this tool into your MCP server ecosystem for multi-tool AI assistance

Tools it exposes

Once connected, the assistant can call these 2 tools directly:

  • search_web — Basic web search that returns results based on a query
  • advanced_search_web — Advanced search with filtering options for domains, required text, and date ranges

Installing the reactmcp mcp server

The server is distributed via npm as @modelcontextprotocol/inspector, so most clients can run it without a manual build step. Add it to your MCP client's configuration and restart the client to pick it up — the copy-paste configs for Claude Desktop, Claude Code and Cursor are on this page.

Configuration

Before the server will start you need to supply 2 environment variables: EXA_API_KEY, OPENAI_API_KEY. Keep credentials in your client's env block or a secrets manager rather than committing them.

Requirements

  • Python 3.8+ - python-dotenv - exa-py (Exa API client) - firecrawl-py (Firecrawl API client) - Other dependencies that may be required by your MCP framework ---

Where it fits

Search and scraping servers exist to fix the single most common failure of any assistant: answering from stale training data instead of what is on the web today. ReActMCP sits in that group, and the shape of its toolset — search_web, advanced_search_web — tells you what it is really for. Worth comparing against the other search web scraping servers in this directory before you commit to one, since several overlap in scope but differ sharply in setup cost and permissions.

Practical notes

  • This server runs locally, so it operates with whatever access your machine and its credentials already have. Scope that deliberately rather than by default.
  • It will not start until its required credentials are present, so set those before wondering why the tools never appear.
  • Maintained by mshojaei77, written in Python.
  • MCP clients ask for confirmation before each tool call by default. Keep that on while you learn what the reactmcp mcp server actually does with your data.
  • Every entry in this directory is reviewed by hand before it goes live, and details are checked against the project's own documentation.

Available tools

ToolWhat it does
search_webBasic web search that returns results based on a query
advanced_search_webAdvanced search with filtering options for domains, required text, and date ranges

How to install the ReActMCP MCP server

{
  "mcpServers": {
    "reactmcp": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/inspector"],
      "env": {
        "EXA_API_KEY": "your-value",
        "OPENAI_API_KEY": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

  • Python 3.8+ - python-dotenv - exa-py (Exa API client) - firecrawl-py (Firecrawl API client) - Other dependencies that may be required by your MCP framework ---
VariableDescriptionRequired
EXA_API_KEYCredential the server authenticates with.Yes
OPENAI_API_KEYCredential the server authenticates with.Yes

Example prompts to try

  • Use ReActMCP to search web.
  • Use ReActMCP to advanced search web.

Frequently asked questions

It connects ReActMCP to MCP-compatible AI assistants such as Claude and Cursor, exposing 2 tools (search_web, advanced_search_web) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with ReActMCP directly.