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x402 Web Tools

by iparadise71 · remote · no sign-in to list tools · v1.1.0 · published by GitHub user iparadise71

Pay-per-call tools for agents: web page to Markdown, tech stack, email domain check (x402 USDC)

Changes · 3
CompareRegistry entry

4 tools: 3 change things and 1 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http x402-web-tools https://x402-web-tools.onrender.com/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

4 tools

Changes things 3Claude Code: ask
  • check_email_domainCheck an email address or domain: MX records, mail provider (Google/Microsoft/Zoho), SPF, DMARC policy, disposable-domain flag and a 0-100 deliverability score.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Check an email address or domain: MX records, mail provider (Google/Microsoft/Zoho), SPF, DMARC policy, disposable-domain flag and a 0-100 deliverability score. Validate leads before sending. Costs $0.002 USDC (x402, Base).
  • detect_tech_stackDetect the technology stack of a website: frameworks (Next.js, React, Vue, Angular...), CMS (WordPress, Shopify, Webflow...), analytics, payments, CDN/hosting and server headers.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Detect the technology stack of a website: frameworks (Next.js, React, Vue, Angular...), CMS (WordPress, Shopify, Webflow...), analytics, payments, CDN/hosting and server headers. Useful for lead qualification and competitor research. Costs $0.003 USDC (x402, Base).
  • pricingFree.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Free. Lists tools, prices and payment details of this server.
Only reads 1Claude Code: allow
  • extract_webpageFetch any public web page and return clean readable Markdown (Readability), title, description, og:image, byline, word count and outgoing links.No findings

    Why it is in this group

    • The description's first verb is "fetch": a word for reading.
    Description, as the server wrote it
    Fetch any public web page and return clean readable Markdown (Readability), title, description, og:image, byline, word count and outgoing links. Ideal for LLM agents that need page content without HTML noise. Costs $0.003 USDC (x402, Base).

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http x402-web-tools https://x402-web-tools.onrender.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__x402-web-tools__extract_webpage"
    ],
    "ask": [
      "mcp__x402-web-tools__detect_tech_stack",
      "mcp__x402-web-tools__check_email_domain",
      "mcp__x402-web-tools__pricing"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as x402-web-tools. Review it before you use it.