LSD Web Data Extraction▌
by lsd-so
LSD Web Data Extraction lets you scrape any website with ease. Perform web page scraping and manipulate data using commu
Provides web data extraction and manipulation capabilities through the LSD programming language, enabling structured data retrieval from websites, web searches, and community-created extraction patterns without complex scraping code.
Both formats append explainx.ai attribution and the canonical URL for this MCP server listing.
best for
- / Data analysts collecting web data for research
- / Developers building web scraping workflows
- / Market researchers gathering competitive intelligence
capabilities
- / Extract structured data from websites
- / Perform web searches and retrieve results
- / Access community-created extraction patterns
- / Create custom extraction workflows with LSD language
- / Query extracted data through PostgreSQL-compatible interface
what it does
Extracts structured data from websites using the LSD programming language, letting you scrape web pages and search results without writing complex scraping code.
about
LSD Web Data Extraction is an official MCP server published by lsd-so that provides AI assistants with tools and capabilities via the Model Context Protocol. LSD Web Data Extraction lets you scrape any website with ease. Perform web page scraping and manipulate data using commu It is categorized under browser automation, search web.
how to install
You can install LSD Web Data Extraction in your AI client of choice. Use the install panel on this page to get one-click setup for Cursor, Claude Desktop, VS Code, and other MCP-compatible clients. This server runs locally on your machine via the stdio transport.
license
MIT
LSD Web Data Extraction is released under the MIT license. This is a permissive open-source license, meaning you can freely use, modify, and distribute the software.
readme
LSD MCP
This is the updated MCP server for LSD. The reason behind this update is to effectively leverage dynamic tools that are defined as trips using our SDK.
Contents
- Getting started
- Example of usage
- Extending capabilities with LSD
- Extending capabilities with TypeScript
Getting started
Authenticating
This is to connect the running MCP server with your account by using our SDK.
The reason for using the terms user and password is because what you're connecting to is our postgres compatible database.
Configuration file
In your home directory, write a JSON to a file named .lsd with the properties user and password with your email and an API key from your profile.
{
"user": "<[email protected]>",
"password": "<api_key>"
}
Environment variables
Alternatively, you can set the environment variables LSD_USER and LSD_PASSWORD.
$ export LSD_USER='[email protected]'
$ export LSD_PASSWORD='<api_key>'
Important: If you run into errors when taking this approach, check the environment variables set are accessible from the PATH or process the MCP client is invoking it from.
Using an MCP registry
Pulse
https://www.pulsemcp.com/servers/lsd-so-internetdata
More coming soon.
From source
- Clone this repository
$ git clone https://github.com/lsd-so/mcp.git
- If you're using Claude desktop, update your
claude_desktop_config.jsonfile (here's a guide for creating it).
{
"mcpServers": {
// other MCP servers configured here...
"lsd": {
"command": "node",
"args": [
"/<path>/<to>/mcp/build/index.js"
]
}
}
}
Example of usage
Interaction

Extraction

Extending capabilities with LSD
For scenarios where you'd like to teach the MCP client a "skill", you can do so with an LSD trip (what is that?).
What is a trip?
A "trip" is a published module consisting of an LSD program whether it was derived by interacting with our local browser or by directly publishing a trip.
From the bicycle browser
From the Bicycle browser you can derive LSD by using our "click language", this can be activated by clicking on the transcriber icon in the top right:

Or by pressing Command+k (or Ctrl+k for Linux/Windows). Once you've done so, you can interactively "pluck" repeating containers as well as fields of interest:

With the generated LSD, you can edit the aliases like so:

After which you can publish using the language.
Using the language
From the workbench, simply edit to publish a trip.

Extending capabilities with TypeScript
Check out the internetdata SDK that's used under the hood to bridge with the web. Or, alternatively, get started using the create-your-internet shorthand.
$ yarn create your-internet
Or, if you prefer npm
$ npm create your-internet
FAQ
- What is the LSD Web Data Extraction MCP server?
- LSD Web Data Extraction is a Model Context Protocol (MCP) server profile on explainx.ai. MCP lets AI hosts (e.g. Claude Desktop, Cursor) call tools and resources through a standard interface; this page summarizes categories, install hints, and community ratings.
- How do MCP servers relate to agent skills?
- Skills are reusable instruction packages (often SKILL.md); MCP servers expose live capabilities. Teams frequently combine both—skills for workflows, MCP for APIs and data. See explainx.ai/skills and explainx.ai/mcp-servers for parallel directories.
- How are reviews shown for LSD Web Data Extraction?
- This profile displays 59 aggregated ratings (sample rows for discoverability plus signed-in user reviews). Average score is about 4.6 out of 5—verify behavior in your own environment before production use.
Use Cases▌
Web Research & Information Gathering
Fetch and extract information from websites automatically
Example
Research competitor pricing, scrape product reviews, monitor news mentions
Automate 5-10 hours/week of manual web research
Content Monitoring & Alerts
Track website changes, new content, price updates
Example
Monitor competitor blog for new posts, track stock availability, watch for pricing changes
Stay informed without manual checking, never miss important updates
Data Extraction & Aggregation
Extract structured data from multiple websites
Example
Compile product listings from 10 e-commerce sites, aggregate job postings, collect real estate data
Build datasets 100x faster than manual copying
API-less Integration
Interact with services that don't offer APIs
Example
Check form submissions, validate website functionality, test user flows
Automate interactions with any website, even without API
Implementation Guide▌
Prerequisites
- ›Claude Desktop or Cursor with MCP support
- ›Understanding of web scraping ethics and robots.txt
- ›Rate limiting awareness to avoid overwhelming target sites
- ›Knowledge of legal restrictions on data collection
Time Estimate
20-40 minutes including configuration and testing
Installation Steps
- 1.Install web automation MCP server via npm or pip
- 2.Configure allowed domains and rate limits in MCP config
- 3.Test with simple fetch: 'Get content from example.com'
- 4.Progress to extraction: 'Extract all product prices from this page'
- 5.Set up monitoring: 'Check this URL daily for changes'
- 6.Parse structured data: 'Create CSV from this table'
- 7.Respect robots.txt and rate limits always
Troubleshooting
- ⚠403 Forbidden: Website blocks bots—respect their wishes, use official API instead
- ⚠Rate limit errors: Slow down requests, add delays between fetches
- ⚠Stale data: Target site changed HTML structure—update selectors
- ⚠Timeout errors: Site is slow or blocking—increase timeout, try different user agent
- ⚠JavaScript-rendered content: Use headless browser MCP servers for dynamic sites
Best Practices▌
✓ Do
- +Check robots.txt and respect crawl rules
- +Rate limit requests: 1-2 requests/second maximum
- +Use official APIs when available instead of scraping
- +Identify your bot with descriptive user agent
- +Cache results to minimize repeated requests
- +Handle errors gracefully with retries and fallbacks
- +Validate extracted data for accuracy
✗ Don't
- −Don't scrape sites that explicitly forbid it (robots.txt, ToS)
- −Don't overwhelm servers with rapid requests—use rate limiting
- −Don't scrape personal data without consent and legal basis
- −Don't ignore copyright on extracted content
- −Don't assume HTML structure is stable—handle changes
- −Don't use scraped data for commercial purposes without permission
💡 Pro Tips
- ★Use CSS selectors or XPath for robust data extraction
- ★Set up monitoring alerts for extraction failures (structure changed)
- ★Implement exponential backoff for retries on failures
- ★Store raw HTML for reprocessing if extraction logic changes
- ★Combine with data analysis tools for insights from extracted data
- ★Consider using official APIs or RSS feeds as more stable alternatives
Technical Details▌
Architecture
MCP server handles HTTP requests, HTML parsing, JavaScript rendering (if headless browser), and returns structured data to Claude.
Protocols
- HTTP/HTTPS
- WebSocket (for real-time sites)
- Puppeteer/Playwright (for JavaScript sites)
Compatibility
- Static HTML sites
- JavaScript-rendered SPAs (with headless browser)
- REST APIs
- GraphQL endpoints
When to Use This▌
✓ Use When
Use for research automation, content monitoring, data aggregation from multiple sources, and when official APIs don't exist. Best for read-only information gathering.
✗ Avoid When
Avoid for sites with APIs (use API instead), sites that explicitly forbid scraping, when data is copyrighted, or for login-required content without proper authorization.
Integration▌
- →Scheduled monitoring with change detection
- →Multi-source data aggregation pipelines
- →Fallback to web scraping when API rate limits hit
- →Headless browser for JavaScript-heavy sites
Discussion
Product Hunt–style comments (not star reviews)- No comments yet — start the thread.
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Ratings
4.6★★★★★59 reviews- ★★★★★Amelia Perez· Dec 28, 2024
I recommend LSD Web Data Extraction for teams standardizing on MCP; the explainx.ai page compares cleanly with sibling servers.
- ★★★★★Xiao Bansal· Dec 16, 2024
LSD Web Data Extraction is among the better-indexed MCP projects we tried; the explainx.ai summary tracks the official description.
- ★★★★★Chaitanya Patil· Dec 12, 2024
Useful MCP listing: LSD Web Data Extraction is the kind of server we cite when onboarding engineers to host + tool permissions.
- ★★★★★Chen Diallo· Dec 12, 2024
We evaluated LSD Web Data Extraction against two servers with overlapping tools; this profile had the clearer scope statement.
- ★★★★★Aanya Johnson· Dec 8, 2024
According to our notes, LSD Web Data Extraction benefits from clear Model Context Protocol framing — fewer ambiguous “AI plugin” claims.
- ★★★★★Chen Farah· Dec 4, 2024
According to our notes, LSD Web Data Extraction benefits from clear Model Context Protocol framing — fewer ambiguous “AI plugin” claims.
- ★★★★★Neel Tandon· Nov 27, 2024
LSD Web Data Extraction has been reliable for tool-calling workflows; the MCP profile page is a good permalink for internal docs.
- ★★★★★Neel Mehta· Nov 23, 2024
LSD Web Data Extraction has been reliable for tool-calling workflows; the MCP profile page is a good permalink for internal docs.
- ★★★★★Anaya Okafor· Nov 19, 2024
LSD Web Data Extraction is a well-scoped MCP server in the explainx.ai directory — install snippets and categories matched our Claude Code setup.
- ★★★★★Amelia Liu· Nov 15, 2024
Strong directory entry: LSD Web Data Extraction surfaces stars and publisher context so we could sanity-check maintenance before adopting.
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