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x402 Web Tools

dev.workers.microtools-x402.x402-web-tools/web-tools · v0.2.0

Measured by MCP Station

Instruction-like text was found in read_url_safe. This is a pattern match, not a verdict. What we look for

Description written by the publisher, not verified

Web/PDF to Markdown, transcription, paper search and citation checks. Pay per call in USDC via x402.

Connect

claude mcp add --transport http web-tools https://x402-web-tools.microtools-x402.workers.dev/mcp

{
  "mcpServers": {
    "web-tools": {
      "url": "https://x402-web-tools.microtools-x402.workers.dev/mcp"
    }
  }
}

Tools as reported by the server

• read_url
  Fetch a public web page and return its main content as clean Markdown (readability extraction): title, url, final_url, markdown, word_count. HTML, plain text, Markdown, JSON and XML. Static fetch only (no JavaScript rendering). Respects robots.txt, blocks private/loopback/metadata hosts, max 3 MB /
• read_url_safe
  Same as read_url plus a heuristic prompt-injection check: flags hidden/invisible text, instruction-like phrases ("ignore previous instructions", role reassignment, secret exfiltration, chat-template tokens), suspicious HTML comments and zero-width/Unicode-tag characters. Returns injection_check {fla
• read_pdf
  Fetch a public PDF (max 10 MB) and convert it to Markdown with Cloudflare Workers AI toMarkdown. Returns title (if detected), url, markdown, word_count. Same URL safety rules as read_url. Failed conversions are not charged. Costs $0.006 USDC per call via x402.
• transcribe_audio
  Transcribe a public direct audio file URL (mp3, wav, m4a, ogg/opus, flac; max 25 MB and 10 minutes, checked from the file header before transcription) with Whisper (@cf/openai/whisper-large-v3-turbo) on Cloudflare Workers AI. Returns text, language, duration, segments with timestamps, optional SRT/V
• search_papers
  Search scholarly papers (OpenAlex index of 250M+ works). Returns up to 25 results with title, authors, year, venue, DOI, citation count, open-access PDF link, abstract (reconstructed from OpenAlex's inverted index; may be null when the publisher withholds it) and OpenAlex id. Optional from_year / to
• get_paper
  Look up one scholarly work by DOI (10.xxxx/..., doi.org URL), arXiv id (arXiv:1706.03762) or OpenAlex work id (W...). Returns title, authors, year, venue, DOI, citation count, references count, open-access PDF link, abstract, OpenAlex id and a retraction flag (OpenAlex is_retracted plus Crossref/Ret
• check_citation
  Check whether a cited paper really exists (catch hallucinated or mistyped references) and whether it has been retracted. Give a doi, or a title with optional year and first_author. Returns exists, verdict (verified | found | doi_exists_metadata_mismatch | uncertain | not_found), confidence (high/med
• ping
  Paid connectivity test: returns ok and a server timestamp. Use it to check that your x402 payment flow works end to end. Costs $0.001 USDC per call via x402.
• health
  Free health check. Returns service status, version, tool prices, network and the plain-HTTP x402 endpoints.

Website · JSON · Text for agents · Registry updated 2026-10-20