MCP Deep Search MCP Server

MCP server for deep web search using @just-every/search

Local serverstdio

What is the MCP Deep Search MCP server?

MCP server for deep web search using @just-every/search. Exposed over MCP by the mcp deep search mcp server, that capability becomes something an assistant can invoke while it works, not something you go and do afterwards.

What it actually does

MCP server for deep web search using @just-every/search. Search across multiple providers including Google, Bing, Brave, DuckDuckGo, Perplexity, and more.

Adding it to your client

The server ships on npm as @just-every/mcp-deep-search, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.

Its toolset

Everything the assistant can do here goes through one of these:

Configuration

You will need 7 environment variables: ENV_FILE, BRAVE_API_KEY, ANTHROPIC_API_KEY, OPENAI_API_KEY, GOOGLE_API_KEY, OPENROUTER_API_KEY, XAI_API_KEY. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.

Caveats

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the mcp deep search mcp server does with a few real requests.

When to reach for it

This sits in the AI and media services group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. MCP Deep Search's toolset — Brave, Anthropic, OpenAI and 5 more — is a fair guide to whether it matches your workflow. It is maintained by just-every; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

Available tools

ToolWhat it does
Brave[brave.com/search/api](https://brave.com/search/api/)
Anthropic[console.anthropic.com](https://console.anthropic.com/)
OpenAI[platform.openai.com](https://platform.openai.com/)
Google[makersuite.google.com](https://makersuite.google.com/)
OpenRouter[openrouter.ai](https://openrouter.ai/)
xAI[x.ai](https://x.ai/)
deep_searchThe deep_search tool exposed by this server.
comprehensive_researchPerform comprehensive research using AI agents that intelligently select and query multiple search engines.

How to install the MCP Deep Search MCP server

{
  "mcpServers": {
    "deep-search": {
      "command": "npx",
      "args": ["-y", "@just-every/mcp-deep-search"],
      "env": {
        "ENV_FILE": "/path/to/.llm.env"
      }
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

VariableDescriptionRequired
ENV_FILEConfiguration value read at startup.Optional
BRAVE_API_KEYCredential the server authenticates with.Yes
ANTHROPIC_API_KEYCredential the server authenticates with.Yes
OPENAI_API_KEYCredential the server authenticates with.Yes
GOOGLE_API_KEYCredential the server authenticates with.Yes
OPENROUTER_API_KEYCredential the server authenticates with.Yes
XAI_API_KEYCredential the server authenticates with.Yes

Example prompts to try

  • Use MCP Deep Search to Brave.
  • Use MCP Deep Search to Anthropic.
  • Use MCP Deep Search to OpenAI.

Frequently asked questions

It connects MCP Deep Search to MCP-compatible AI assistants such as Claude and Cursor, exposing 8 tools (Brave, Anthropic, OpenAI, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with MCP Deep Search directly.