Webcrawl Anything

Scrape, map, crawl, search and monitor the web. Runs locally with no API key, cites every source.

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)

Claude Code

claude mcp add --transport http webcrawl-anything 'https://webcrawl.app/mcp'

JSON configuration (Claude Desktop, Cursor, VS Code)

{
    "mcpServers": {
        "webcrawl-anything": {
            "type": "http",
            "url": "https://webcrawl.app/mcp"
        }
    }
}

NPM package @webcrawl/mcp

Claude Code

claude mcp add webcrawl-anything -e 'WEBCRAWL_API_KEY=<your webcrawl_api_key>' -e 'WEBCRAWL_MODE=<WEBCRAWL_MODE>' -e 'WEBCRAWL_MCP_SCHEMA_PROFILE=<WEBCRAWL_MCP_SCHEMA_PROFILE>' -- npx -y @webcrawl/mcp@1.4.2

JSON configuration (Claude Desktop, Cursor, VS Code)

{
    "mcpServers": {
        "webcrawl-anything": {
            "command": "npx",
            "args": [
                "-y",
                "@webcrawl/mcp@1.4.2"
            ],
            "env": {
                "WEBCRAWL_API_KEY": "<your webcrawl_api_key>",
                "WEBCRAWL_MODE": "<WEBCRAWL_MODE>",
                "WEBCRAWL_MCP_SCHEMA_PROFILE": "<WEBCRAWL_MCP_SCHEMA_PROFILE>"
            }
        }
    }
}

Environment variables

WEBCRAWL_API_KEY secret Optional. Leave unset to run fully local. Set a webcrawl.app key to use the hosted cloud.
WEBCRAWL_MODE Optional: local, cloud or auto. Default auto runs local unless an API key is set.
WEBCRAWL_MCP_SCHEMA_PROFILE Set to compact for smaller tool schemas in context-limited clients.

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Webcrawl Anything

Give your AI agent the whole web. Free, local, no API key.

Search, scrape, map, crawl and monitor any website, SPA, PDF, YouTube video, GitHub repo, ArXiv paper, product page or CVE, from Claude Code, Cursor, Codex or your terminal.

Every frame above is real output, recorded with node scripts/record-demo.mjs. No API key, no account.

Set up in one line

npx webcrawl setup

That registers the @webcrawl/mcp server and the Webcrawl Agent Skill in Claude Code, Cursor, Codex, Gemini and Windsurf. Restart your agent and paste one of these:

Is CVE-2024-3094 in anything I depend on? Look it up, give me the CVSS score, CISA KEV
status and fixed versions, then check my package-lock.json and link the evidence.

Map https://docs.stripe.com/webhooks, crawl every page under it into Markdown, and
write me a one-page cheat sheet with the source URL under each section.

Watch https://news.ycombinator.com every hour and alert me when a story about MCP
reaches the front page. Show me the monitor you created.

More reproducible prompts, each with the command it runs: docs/demos.md.

No agent? Use the CLI directly: npx webcrawl search "react 19 compiler".

What You Can Crawl & Search

Target	Returns	Requirements
Websites & JS SPAs (`web`)	Clean Markdown, semantic headings, tables, code blocks, links, OpenGraph/JSON-LD, and SHA-256 content hashes	Zero-key local (`impit` TLS impersonation + local Chrome) or `webcrawl.app` cloud stealth browsers
PDF & Office Docs (`pdf-office`)	Page-numbered Markdown, tables, slide notes, and automatic OCR on scanned PDF pages (`pagesOcr` + honest `pagesSkipped`)	Built-in (`@firecrawl/pdf-inspector`, `pdf-parse`, `mammoth`, `officeparser`, `tesseract.js`)
YouTube & Media (`youtube-media`)	Timestamped transcript Markdown, video title/channel/duration metadata, and spoken audio transcription	Built-in zero-key YouTube multi-client caption extractor; optional audio transcription provider for raw MP3/MP4
Shopping & Products (`shopping`)	Multi-retailer price comparison, currency-normalized offers, stock status, ratings, review counts, and shipping	Zero-key local HTML/JSON-LD product extractor (`-c shopping`); optional `SERPER_API_KEY`
Flights & Hotels (`travel`)	Structured flight routes (`origin`, `destination`, `airline`, `stops`, `price`) and hotel nightly rates, stars, and guest ratings	Zero-key local search + schema.org extractor (`-c flights` / `-c hotels`)
Real Estate & Local Business (`real-estate`)	Property listings (`bedrooms`, `bathrooms`, `parking`, `suburb`, `portal`) and local business hours, phone, address, and reviews	Zero-key local extractor (`-c real-estate --sub buy\	rent\	sold`/`-c business`)
Security & CVEs (`cve`)	Authoritative CVE & GHSA records with CVSS v3.1/v4.0 scores, CWEs, affected/fixed package versions, and CISA KEV flags	Built-in live NVD 2.0 + OSV.dev + CISA KEV enrichment (`-c security --sub cve`)
GitHub Repos, Issues & Releases (`github`)	Structured repo metadata (stars, forks, license, topics, language), README Markdown, or issue/PR/release discussion threads	Built-in zero-key HTML & GitHub extractor (`npx webcrawl scrape https://github.com/owner/repo`)
ArXiv & Academic Papers (`arxiv`)	Paper title, authors, abstract, primary category, submission date, direct PDF link, and full parsed paper Markdown	Built-in ArXiv abstract & PDF inspector (`npx webcrawl scrape https://arxiv.org/abs/...`)
llms.txt & Sitemaps (`llms-txt`)	Structured documentation manifest, section hierarchy, and crawlable doc URLs	Built-in (`npx webcrawl scrape https://docs.example.com/llms.txt` or `npx webcrawl map`)

Run npx webcrawl targets at any time to inspect all registered targets from your terminal.

Quickstart

One command registers the @webcrawl/mcp server and installs the webcrawl-anything Agent Skill (SKILL.md) for Claude Code, Cursor, and Codex:

npx webcrawl setup

Or target specific coding agents:

npx webcrawl setup --agent claude --agent cursor --agent codex --agent gemini --agent windsurf

Check your local engine, stealth browser, and parser readiness:

npx webcrawl doctor

Agent Skills (any coding agent)

Install webcrawl's skills into Claude Code, Cursor, Codex, or any agent that supports the Agent Skills spec:

npx skills add brainfish-ai/webcrawl-anything

Skill	What it does
`webcrawl-ticket-watch`	Watch StubHub/Ticketmaster/SeatGeek event pages for price drops & seat availability — get a push alert on your phone the moment tickets hit your target.
`webcrawl-jobs-leads`	Job-market intelligence: crawl company careers pages and Greenhouse/Lever boards, normalize postings, track new listings daily, rank fit.
`webcrawl-deal-watch`	Black Friday / price-drop monitor for your personal watchlist — pings your phone (free ntfy.sh push) when an item hits target price.
`webcrawl-crawl`	Any URL → clean Markdown: scrape, crawl, map, extract, categorized search. The core skill.
`webcrawl-protected-sites`	Read sites that challenge automated clients (DataDome/Cloudflare/AWS-WAF): TLS-impersonate → proxy → real-browser tier ladder, zero config to start.
`webcrawl-learn-topic`	Deep-research any topic: search → crawl authoritative sources → cited digest with a reading list.
`webcrawl-research-corpus`	Build RAG-ready Markdown corpora from docs sites: llms.txt, sitemaps, path scoping, hash dedupe.
`webcrawl-real-estate`	Search & monitor property listings with the built-in extractor — new-listing and price-reduction alerts.

See docs/skills.md for details and trigger phrases per skill.

Zero-Key CLI Usage

Webcrawl Anything runs out-of-the-box locally with zero API keys using the built-in impit TLS-impersonated fetcher, document/media parsers, BM25 + semantic ranker, and vertical extractors:

# Scrape any website, GitHub repo, ArXiv paper, PDF, or YouTube video into clean Markdown
npx webcrawl scrape https://github.com/torvalds/linux
npx webcrawl scrape https://arxiv.org/abs/1706.03762
npx webcrawl scrape https://www.youtube.com/watch?v=dQw4w9WgXcQ

# Search the live web or structured verticals
npx webcrawl search "react 19 compiler" -n 5
npx webcrawl search "sony wh-1000xm5" -c shopping
npx webcrawl search "boutique hotels in shibuya" -c hotels
npx webcrawl search "3 bedroom house in marrickville" -c real-estate --sub buy
npx webcrawl search "CVE-2024-3094 xz utils" -c security --sub cve

# Discover every URL on a domain (sitemap.xml + robots.txt + link graph)
npx webcrawl map https://docs.stripe.com --filter webhook -n 50

# Crawl up to 25 pages in parallel with target evidence
npx webcrawl crawl https://docs.stripe.com/webhooks -n 5

# Extract structured JSON from any page
npx webcrawl extract https://news.ycombinator.com --prompt "top 5 stories with points"

Example Prompts (Once Connected to Your Agent)

Once npx webcrawl setup has registered the MCP server and skill, ask Claude Code, Cursor, or Codex directly:

"Search for CVE-2024-3094 in the security category and show me the CVSS score, CISA KEV status, and fixed versions."
"Scrape https://arxiv.org/abs/2305.18290 and summarize the DPO objective and experimental results."
"Compare retail prices and stock availability for the Apple Mac Mini M4 across US retailers using web_search with category: shopping."
"Map https://modelcontextprotocol.io, pick the specification pages, and crawl them into Markdown."
"Parse the PDF at https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf and verify whether any pages required OCR."

Local Engine vs. `webcrawl.app` Cloud

Webcrawl Anything uses the exact same TypeScript engine (src/) locally and in the hosted webcrawl.app cloud API. You can start with zero keys locally and upgrade to cloud with one command whenever you need managed stealth browsers or sub-50ms global cache hits:

Capability	Open-Source Local (`--mode local`)	`webcrawl.app` Cloud (`--mode cloud`)
API Key Required	None (Zero-Key)	`WEBCRAWL_API_KEY` (`npx webcrawl login`)
Core Engine & Target Plugins	100% shared (`src/engine`, `src/targets`, `src/extract`)	100% shared
PDF, Office, YouTube & CVE Parsers	Built-in local execution	Hosted + background async workers (`/v1/runs/:id`)
Anti-Bot & Cloudflare Bypass	Local `impit` TLS + local Chrome	Managed residential stealth browser fleet + Cloudflare rendering
Search Fan-Out	Built-in DuckDuckGo/Bing + BYO keys	Managed multi-provider fan-out (Serper, Brave, Jina, Tavily)
Global Content Cache	Local in-memory LRU	Sub-50ms global SHA-256 content-addressed cache

To connect your CLI and MCP server to webcrawl.app cloud:

npx webcrawl login
npx webcrawl whoami

Compact MCP Schema Profile for Context-Constrained Agents

By default, npx webcrawl setup configures WEBCRAWL_MCP_SCHEMA_PROFILE=compact so MCP tool schemas use minimal token overhead inside Claude Code, Cursor, and local LLM context windows while keeping full server-side validation.

To switch to verbose tool parameter descriptions:

npx webcrawl setup --schema-profile full

Architecture & Shared Engine Flywheel

webcrawl/
├── src/
│   ├── targets/        # Pluggable Target & Extractor Registry (web, pdf-office, youtube, github, arxiv, llms-txt, shopping, travel, real-estate, cve)
│   ├── engine/         # Multi-tier fetcher (impit TLS impersonation → stealth browser → HTML-to-Markdown + SHA-256 cache)
│   ├── parse/          # Native PDF inspector + OCR fallback, DOCX/XLSX/PPTX parser, YouTube caption extractor
│   ├── extract/        # Vertical structured extractors (shopping, flights, hotels, real-estate, business, CVE/NVD/OSV)
│   ├── search/         # Multi-provider search fan-out + vertical pipelines
│   ├── ranker/         # Hybrid BM25 + semantic vector + RRF + MMR diversity reranker
│   └── local-engine.ts # In-process zero-key backend powering CLI & MCP locally
├── packages/
│   ├── cli/            # `webcrawl` CLI (`npx webcrawl search|scrape|map|crawl|extract|rerank|targets|setup|doctor`)
│   ├── mcp/            # `@webcrawl/mcp` stdio & Streamable HTTP MCP server
│   └── client/         # `@webcrawl/client` zero-dependency TypeScript SDK
└── api/
    └── index.ts        # Production `webcrawl.app` API powered by the exact same `src/` engine

Every community improvement to a target plugin (src/targets/), vertical extractor (src/extract/), or document parser (src/parse/) immediately powers both local CLI/MCP users and the hosted webcrawl.app platform.

Show your build

Built something with webcrawl, like a price tracker, a docs corpus, a research agent, or a monitor that saved you a refresh? Open a Show your build discussion with the prompt you used and a screenshot. We feature the best ones here and in release notes.

Add the badge to your project:

[![Built with webcrawl](https://img.shields.io/badge/built%20with-webcrawl-0a0a0a)](https://github.com/brainfish-ai/webcrawl-anything)

Contributing a New Target or Extractor

Want to add a new target (e.g., Reddit threads, Hacker News discussions, SEC EDGAR filings, npm/PyPI packages, or a regional real-estate/shopping portal)?

See CONTRIBUTING.md for the 3-step guide to registering a CrawlTargetPlugin in src/targets/ with a fixture test in src/__tests__/targets.test.ts.

New here? Start with a good first issue or a target plugin request.

Contributors

Every merged PR is credited by name in the release notes.

License

MIT

Frequently asked questions

What is Webcrawl Anything?

Scrape, map, crawl, search and monitor the web. Runs locally with no API key, cites every source.

How do I install Webcrawl Anything?

It runs as a remote server. In Claude Code: claude mcp add --transport http webcrawl-anything 'https://webcrawl.app/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Webcrawl Anything need an API key?

Yes. It expects WEBCRAWL_API_KEY, which you set in its configuration.

Is Webcrawl Anything open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains Webcrawl Anything?

It is published by brainfish-ai. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.

Server details

Listed in: Official MCP Registry
Publisher: brainfish-ai
Category: Search and web
Runs: Remote + Local
GitHub stars: ★ 0
License: MIT
Language: TypeScript
Last commit: Nov 3, 2026
Open issues: 7
Version: 1.4.2
Published: Nov 4, 2026

io.github.brainfish-ai/webcrawl

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Search and web

Webcrawl Anything

Install

Documentation

Webcrawl Anything

Set up in one line

What You Can Crawl & Search

Quickstart

Agent Skills (any coding agent)

Zero-Key CLI Usage

Example Prompts (Once Connected to Your Agent)

Local Engine vs. webcrawl.app Cloud

Compact MCP Schema Profile for Context-Constrained Agents

Architecture & Shared Engine Flywheel

Show your build

Contributing a New Target or Extractor

Contributors

License

Frequently asked questions

Local Engine vs. `webcrawl.app` Cloud