MCP server: One MCP server.

Lookout

@sylphxaiRun by its publisher: served from their own domain, namespace checked by the registry.MCP server · External

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

Web searchv0.3.3MITTypeScript
Freeno charge per call

Runs on your machine from its package; the steps are below.

What it does

  1. Reads
  2. Writes
  3. High impact

At most: only reads or looks up information.

What it costs

Free

Odel charges nothing per call. The publisher may charge for its own service.

Runs locally over stdio

This server isn't hosted — your MCP client launches it from a package registry. Use one of the commands below, or drop the config into your client (e.g. Claude Desktop).

npm@sylphx/lookoutv0.3.3

Run

npx -y @sylphx/lookout

MCP client config

{
  "mcpServers": {
    "lookout": {
      "command": "npx",
      "args": [
        "-y",
        "@sylphx/lookout"
      ]
    }
  }
}
README3 min read

Merged into 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

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 license

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 saysLookout returns
“Release notes” and a URLtitle, description, excerpt span, and any table rows it could read
nothing when the fetch failsa 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

bash
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

bash
npx -y @sylphx/lookout

That starts a stdio MCP server. No API key.

Your clientSetup
Any agent / CLInpx -y @sylphx/lookout
Claude Codeclaude mcp add lookout -- npx -y @sylphx/lookout
Claude Desktop / Cursor / VS Code / Codex"command": "npx", "args": ["-y", "@sylphx/lookout"]
json
{
  "mcpServers": {
    "lookout": { "command": "npx", "args": ["-y", "@sylphx/lookout"] }
  }
}

Tools

ToolWhen to call it
web_searchRanked hits from the four public adapters. No API key.
web_fetchOne URL. SSRF checks, redirect cap, size cap, body-prefix span.
web_extractTitle, metadata, tables, and spans from HTML or a URL.
web_cacheQuery or manage the on-disk cache. Not a web search.
web_crawlBounded same-origin crawl. Not the search default.
web_researchNamed multi-step tool: search, then fetch and extract the top pages (default 3, max 6).
web_diffAdded 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

ProductJob
CitraPDF answers with page-level proof
IrisImage facts and pixel evidence
CueVideo timelines and timestamp evidence
SpineRepository architecture and impact
LocusExact code-chunk retrieval

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

Documentation

Development

bash
bun install
bun test
bun run doctor
bun run docs:build

License

MIT

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