MCP server · Research

Nexus MCP server

Lets your AI search the web for current information and show where it found things.

Research For pr and communications Search & Data Extraction

Nexus is a small helper that gives your AI assistant the ability to search the web for fresh information. It works with apps like Claude Desktop and Cursor, and it comes back with answers plus the sources it used. It is handy if you often ask your AI about recent news or things that change quickly.

What is an MCP server? The 30-second version

On its own, your AI can only chat using what it already learned during training, so it can be out of date. An MCP server is a small helper program that gives your AI a new skill or a connection to another service. This one connects your AI to a search service called OpenRouter, which runs models like Perplexity Sonar that look things up on the live web. Once it is connected, you just ask a question and the AI can go fetch current information for you.

What this MCP server does

You ask your AI a question, like what happened in the news today. The AI passes your question to this helper, and the helper sends it to OpenRouter, which runs a search model. That model searches the web in real time and writes an answer, along with the sources it used. The helper hands the answer and the source list back to your AI, and you see it in your chat window. You can also pick a different model for deeper research or for answers based on training data instead of a live search.

Flow diagram: you ask your AI “What happened in the news today?”, the Nexus MCP server connects it to OpenRouter, and you get back answer with sources.

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What you can do with it

Search the web for current information and get an answer with sources
Pick a faster model for quick questions or a slower one for deep research
Ask for answers based on the model's training data instead of a live search
Control how long the answer can be and how creative it is
Check that the server is set up correctly with its status resource

Try asking your AI

“Search the web for the latest news about electric cars and list your sources”
“Use sonar-deep-research to look into the current state of AI safety research”
“Find out what happened at the climate summit this week, with citations”
“Explain quantum computing using grok-4, no web search needed”

What it gives back to you

You get a written answer in your chat, followed by a short block of details like which model was used, how long it took, how many tokens were used, and how many sources were found. For the web search models, the answer also includes the sources it pulled from. For the training-data model, you get an answer without live sources.

Before you start

What you need

An OpenRouter account and API key (a kind of password for apps; you get one free at openrouter.ai)
Bun 1.0 or newer, or Node.js 18 or newer, installed on your computer
An MCP client like Claude Desktop, Claude Code, or Cursor

Good to know

OpenRouter charges for each search based on how much text is used, so heavy use can cost money on your OpenRouter account.

Install it with your AI

Add Nexus MCP server to your AI, no technical skills needed

You don't install anything by hand. You copy one prompt, paste it into an AI that can work on your computer, and it checks, installs and connects the server for you, asking you when it needs something.

Sign in to get the install prompt

Members get a ready-made prompt that lets the Claude desktop app check Nexus MCP server, install it and connect it for them, step by step. You don't need any technical skills: you copy, paste and answer a few questions. Your connected AI can also find and install any of the 4,066 MCP servers here for you.