WebLens MCP server
online · 100% uptimedev.weblens/weblens·v2.1.0Scrape, crawl, map and extract the web. Pay per call in USDC, no account or API key.
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If you have run it, two minutes of your experience saves the next person an afternoon.
WebLens tools (36, 1 write)
write = sends, deletes, buys or postsanswer_questionFreeGet a grounded answer with inline [n] citations: searches the web, fetches sources, and answers strictly from them. Price: $0.05
batch_fetchFreeFetch multiple URLs in parallel. Efficient for bulk operations. Price: $0.0015/URL
compare_urlsFreeCompare 2-3 webpages and get AI-generated analysis of differences. Price: $0.05
crawl_siteFreeCrawl a site and get clean markdown for every page in one synchronous call (no polling). Same-host BFS with depth and page-budget limits, robots.txt honoured by default. Price: $0.0015 per requested page (1-25) — you are billed for the requested budget, not the pages returned
deep_researchFreeMulti-step cited research in one call: plans sub-questions, searches each, fetches and dedupes sources, then synthesizes an answer with inline [n] citations, key findings, and gaps. Unlike `research` ($0.08, one search + summary) this decomposes the question and cites every claim. SLOW: a standard run takes ~30-60 seconds — use a generous client timeout and do not retry on timeout. Price: $0.20 standard (3 sub-questions, 8 sources) / $0.35 deep (5 sub-questions, 12 sources)
detect_techFreeWhat a website is built and run on, from a single fetch: framework, CMS, ecommerce platform, CDN, analytics, payments, support widgets and web server — each reported with the response header or HTML marker that proves it. Use for competitive research, sales prospecting and vendor due diligence. Price: $0.005
domain_intelFreeEverything about a domain in one call: who registered it and when, when it expires, its DNS records, the mail and DNS providers behind them, the SaaS vendors its TXT verification tokens reveal (Google Workspace, Microsoft 365, Salesforce, Atlassian, Okta, …), SPF/DMARC posture, and risk flags like newly-registered or no-registrar-lock. Use for vendor due diligence, security triage, phishing checks and prospect research. Price: $0.005
extract_dataFreeExtract structured data from a webpage using a JSON schema. AI-powered extraction. Price: $0.03
extract_pdfFreeExtract text and metadata from a PDF document. Price: $0.004
fetch_resilientFreeResilient fetch with automatic fallback: native scraper first, then headless Chromium for JS-rendered or bot-walled pages. Price: $0.008
fetch_webpageFreeFetch and convert a webpage to clean markdown. Fast, no JavaScript rendering. Price: $0.002
fetch_webpage_proFreeFetch webpage with full JavaScript rendering. Use for SPAs and dynamic content. Price: $0.006
get_contentsFreeFetch 1-20 URLs and get clean markdown per page, truncated to a character cap. Price: $0.0015/URL
intel_companyFreeCompany intelligence deep dive: tech stack, funding, team, competitors, news. Price: $1.00
intel_competitiveFreeCompetitive analysis: feature matrix, pricing, SWOT analysis. Price: $8.00
intel_marketFreeAI-powered market research report with trends, key players, and data points. Price: $5.00
intel_site_auditFreeComprehensive SEO, performance, and security audit with scoring. Price: $0.75
map_siteFreeDiscover a site's URLs without fetching page content — reads robots.txt sitemap directives, sitemap.xml and nested sitemap indexes, falling back to homepage link extraction. Price: $0.004
memory_setFreeStore key-value data in persistent agent memory. Price: $0.001
monitor_createwrite actionFreeCreate a URL change detection monitor with webhook notifications. Price: $0.01
package_intelFreeShould you depend on this package? One call returns version, license, deprecation status WITH the maintainer's reason, weekly/monthly downloads, last release date, maintainer count, npm's quality/popularity/maintenance scores, and health signals (deprecated, no-recent-release, no-license, single-maintainer, no-public-repository). Supports npm and PyPI. Price: $0.003
preview_endpointFreeFREE. See what a paid WebLens endpoint costs and what it returns before paying: the live price, a one-line summary, and a recorded sample of the exact response shape. Endpoints with no paid upstream (/fetch/basic, /contents, /map) also run a real truncated LIVE preview when you pass a url; SerpAPI- and Anthropic-backed endpoints return the recorded sample only, because free live runs there would burn upstream credits. Price: free
project_due_diligenceFreeOff-chain due diligence on a project's web presence — the half an on-chain rug checker cannot see. Returns domain age and registrar, whether a team page, whitepaper, docs and socials exist, whether the site is an off-the-shelf template, and a cross-check of a contract address against the addresses actually printed on the project's own website (a mismatch is a strong impersonation signal). Gives weighted risk signals and an A-F grade. Reads NOTHING on-chain — pair it with a contract/liquidity checker. Price: $0.05
researchFreeOne-stop research: searches web, fetches top results, and summarizes findings. Price: $0.08
screenshotFreeCapture a screenshot of a webpage. Returns base64 PNG image. Price: $0.008
search_autocompleteFreeGet Google Autocomplete suggestions for a partial query — keyword research and intent discovery. Price: $0.015
search_discussionsFreeWhat Hacker News said about a topic: matching stories with points, comment counts and links to the threads, plus aggregates — total matches, points and comments returned, most-submitted domains, and when it was first and last discussed. Price: $0.004
search_imagesFreeSearch Google Images for direct image URLs with dimensions, thumbnails, and source pages. Price: $0.015
search_newsFreeSearch Google News for real-time articles with source, date, and thumbnail. Price: $0.015
search_placesFreeSearch local businesses via Google Local: names, addresses, ratings, reviews, phone, website, coordinates. Price: $0.045
search_scholarFreeSearch Google Scholar for academic papers with snippets, publication info, and citation counts. Price: $0.015
search_shoppingFreeSearch Google Shopping for products with prices, sellers, ratings, and links. Price: $0.015
search_trendsFreeGet Google Trends interest-over-time timeline for a query. Price: $0.015
search_webFreeSearch the web and get real-time results with snippets. Set includeContent to also fetch the top result pages as markdown (+$0.0015/result). Price: $0.015
smart_extractFreeExtract data using natural language. AI understands what you want. Price: $0.035
youtube_transcriptFreeGet the full transcript of a YouTube video with timestamps. Accepts a video ID or any YouTube URL. Price: $0.03
Public scan report
scanner v0.1.9 · 2026-09-24 · same rubric, same numbers if you re-run it
- –Code scanremote-only server, no package to scann/a
- Live reliabilityremote reachable in 825ms20/20
- Tool poisoning36 tool descriptions checked15/15
- Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
- Maintenancelast push 20 days ago15/15
- Maintainer identitynamespace and repository owner differ; GitHub account older than a year; website matches verified namespace7/10
Findings (1)
- highWrite-action tools reachable without authentication
auth.open-write
How WebLens compares
Against every graded Scraping and browsing MCP server, from our own scans and uptime checks. Updated after each scan run.
- Safety score
- 80/100
- higher than 55% of 866 Scraping and browsing servers
- Tools
- 36
- the typical Scraping and browsing server has 6
- Tools that change things
- 3%
- typical: 0%. Fewer write tools means less an agent can break
- Uptime
- 100%
- of our recent checks; the typical remote Scraping and browsing server answers 100%
- Response time
- 233 ms
- faster than 49% of 384 Scraping and browsing servers
What its tools let an agent do: 35 read · 1 change
Install WebLens in Claude Code, Cursor or VS Code
claude mcp add --transport http weblens https://api.weblens.dev/mcp
What the publisher says
From the WebLens repository's README, as published. We do not edit it. Read it on GitHub
WebLens
Premium web intelligence API for AI agents, with x402 micropayments. No accounts, no API keys — pay per request in USDC on Base.
🌐 Live API: https://api.weblens.dev 📖 Interactive docs: https://api.weblens.dev/docs 🤖 Agent guide: https://api.weblens.dev/llms.txt 🔎 Marketplace: listed on x402scan
Try it free, right now
No wallet, no signup — these are rate limited to 10 requests/hour per IP:
curl https://api.weblens.dev/r/https://example.com # any page as markdown
curl https://api.weblens.dev/s/cloudflare+workers # web searchPreview before you pay (free)
An agent shouldn't have to buy a call to learn what it returns. POST /preview is free and answers that up front — the live price, a one-line summary, and a real sample of the exact response shape:
curl -X POST https://api.weblens.dev/preview \
-H "Content-Type: application/json" \
-d '{"endpoint": "/answer"}'{
"endpoint": "/answer",
"price": "$0.05",
"currency": "USD",
"summary": "A direct answer with inline [n] citations to real sources.",
"sample": { "query": "...", "answer": "...", "citations": [], "confidence": 0.92 },
"sampleType": "recorded",
"livePreviewAvailable": false,
"livePreviewHint": "This endpoint calls a paid upstream provider, so free live previews are not offered — the recorded sample shows the exact response shape."
}Live vs recorded. A real, truncated live preview runs only for endpoints whose marginal cost is a plain fetch — currently /fetch/basic, /contents and /map — and only when you pass a url. Everything else is backed by a metered upstream (SerpAPI, Anthropic); running those free would burn upstream credits, so they return the recorded sample, which still shows every field name and type. An endpoint that isn't sold returns 404.
# live: the first 500 chars of the real result, for free
curl -X POST https://api.weblens.dev/preview \
-H "Content-Type: application/json" \
-d '{"endpoint": "/fetch/basic", "url": "https://example.com"}'Rate limited to 10 requests/hour per IP like the rest of the free tier.
ERC-8004: receipts and feedback
ERC-8004 (Trustless Agents) keeps compact signals on-chain and the detailed documents off-chain. WebLens hosts the off-chain half — the part a service operator can run without deploying a contract. To be precise about what that is and isn't: WebLens is not registered on-chain, holds no agent id, and writes nothing to any registry.
Two more things worth stating plainly:
Shortened. The full README is on GitHub.
Nothing above is checked by us. What we check is on the safety report.
WebLens: common questions
- Is WebLens MCP server safe?
- Mostly: it is graded B (80/100). Read the WebLens safety report
- How do I install WebLens?
- It runs remotely at api.weblens.dev. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
- Does WebLens need an API key?
- Not as far as the registry entry and our scan can tell: no credentials are declared or required.
- Is WebLens maintained?
- The last commit was 61 days ago (2026-09-04). The latest release is v2.1.0.
- Is WebLens up?
- 100% of our last 28 checks got an answer. We check remote servers about four times a day.
- What can I use instead of WebLens?
- Servers from other publishers that do the same job: fastCRW MCP server, CRW Web Scraper MCP server and Crawlberg MCP server.
- How does WebLens compare with other Scraping and browsing MCP servers?
- safety score 80/100 (higher than 55% of 866 Scraping and browsing servers); tools 36 (the typical Scraping and browsing server has 6); tools that change things 3% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.
Alternatives to WebLens
Same job from other publishers: the closest match first, then the best rated.
- fastCRWScrape, crawl, map & search the web. Open-source, self-hostable Rust crawler & search for AI agents.not reviewedEstablishedA
- CRW Web ScraperOpen-source web scraper for AI agents with scrape, crawl, and map toolsnot reviewedEstablishedA
- CrawlbergScrape, crawl, and map websites to Markdown or JSON via local CLI.not reviewedGrowingA
- KreuzcrawlScrape, crawl, and map websites to Markdown or JSON via local CLI.not reviewedGrowingA
- PyreCrawlWeb scraping + research toolkit for AI agents: scrape, crawl, monitor URLs with anti-bot bypass.not reviewedGrowingA