Lookout

Name: Lookout
Author: SylphxAI

by SylphxAIversion 0.3.3i★ –iRuns on your computer

Registry nameio.github.SylphxAI/lookout

Install

Overview

Description from the maker (original English)

Lookout — web answers with source-level proof. Search and fetch citeable excerpts, no API key.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiVery new↓ 68/wk · ★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "lookout": {
      "command": "npx",
      "args": [
        "-y",
        "@sylphx/lookout"
      ]
    }
  }
}

Run this in your terminal

claude mcp add lookout -- npx -y @sylphx/lookout

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "lookout": {
      "command": "npx",
      "args": [
        "-y",
        "@sylphx/lookout"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "lookout": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@sylphx/lookout"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 10, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account SylphxAI, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Search & AI memoryi

More stars than 0% of the other 5825 servers in this category
Published to the registry more recently than 46% of the other 5825 servers in this category
Basic checks equal to or better than 100% of the other 5825 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Lookout safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.3.3) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

by upstashWidely used↓ 972.7K/wk★ 64.2KUpdated today

Computer or cloud

Install

Codebase Memory

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

by DeusDataWidely used↓ 18K/wk★ 48.1KUpdated 23 days ago

Runs on your computer

Install

Exa

Connect AI agents to Exa for web search, content fetching, and multi-step research.

by exa-labsWidely used★ 5.2KUpdated 2 months ago

Runs in the cloud✓ exa.ai

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Merged into [anymd](https://github.com/SylphxAI/anymd) (2026-09-25). anymd reads PDFs, Office files, EPUB, web pages, images and video into clean Markdown for AI agents: npx -y @sylphx/anymd. This repository is archived.

Lookout

Web answers with source-level proof.

Search and fetch citeable excerpts. No API key. Hits name the adapter. Fetches keep a span, warnings, and gaps. Multi-step research is a separate tool.

npm @sylphx/lookout · bin lookout · MCP io.github.SylphxAI/lookout

The problem

A search snippet is a title and a URL. The agent then paraphrases a page it never opened. When the body is missing, a confident summary is worse than a gap.

The difference

A snippet says	Lookout returns
“Release notes” and a URL	title, description, excerpt span, and any table rows it could read
nothing when the fetch fails	a warning or an error: blocked address, HTTP status, truncation, empty extract

Fetch reads the HTTP response. It does not run JavaScript, and it does not write a model summary.

Search, then open the page

npx -y @sylphx/lookout search "Model Context Protocol"

npx -y @sylphx/lookout fetch https://example.com npx -y @sylphx/lookout extract https://example.com

search queries DuckDuckGo HTML, Wikipedia OpenSearch, the npm registry, and Hacker News Algolia, then ranks the hits. It does not fetch those pages and it does not run web_research.

Install

npx -y @sylphx/lookout

That starts a stdio MCP server. No API key.

Your client	Setup
Any agent / CLI	`npx -y @sylphx/lookout`
Claude Code	`claude mcp add lookout -- npx -y @sylphx/lookout`
Claude Desktop / Cursor / VS Code / Codex	`"command": "npx", "args": ["-y", "@sylphx/lookout"]`

"mcpServers": { "lookout": { "command": "npx", "args": ["-y", "@sylphx/lookout"] } } }

Tools

Tool	When to call it
`web_search`	Ranked hits from the four public adapters. No API key.
`web_fetch`	One URL. SSRF checks, redirect cap, size cap, body-prefix span.
`web_extract`	Title, metadata, tables, and spans from HTML or a URL.
`web_cache`	Query or manage the on-disk cache. Not a web search.
`web_crawl`	Bounded same-origin crawl. Not the search default.
`web_research`	Named multi-step tool: search, then fetch and extract the top pages (default 3, max 6).
`web_diff`	Added and removed words between two texts or two URLs.

There is no profile switch. The tool you name is the work that runs. Cache is on for search and fetch unless you pass useCache: false. A cache hit replays an earlier response from disk. The first search still needs the network.

Reference: tools · defaults

What it will not pretend

Private, loopback, and link-local addresses are rejected.
A failed adapter, a non-200 response, a truncated body, or an empty extract is reported. It is not turned into a clean answer.
web_fetch does not honor robots.txt unless you set respectRobots: true. web_crawl honors it unless you turn that off.
Lookout does not render a browser and does not synthesize an answer.

Companion MCP tools

Product	Job
Citra	PDF answers with page-level proof
Iris	Image facts and pixel evidence
Cue	Video timelines and timestamp evidence
Spine	Repository architecture and impact
Locus	Exact code-chunk retrieval

Each product is independent. Install only the tools your agent needs.

Documentation


Website	sylphxai.github.io/lookout
Quickstart	Install and first call
Compare	Firecrawl, Tavily, and what Lookout actually does

Development

bun install

bun test bun run doctor bun run docs:build

License

MIT

Lookout

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Search & AI memoryi

Common questions

Alternatives

Context7

Codebase Memory

Exa

README from the maker

Lookout

Web answers with source-level proof.

The problem

The difference

Search, then open the page

Install

Tools

What it will not pretend

Companion MCP tools

Documentation

Development

License