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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

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

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

[mcp_servers.web-tools]
url = "https://x402-web-tools.microtools-x402.workers.dev/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "web-tools": {
      "type": "remote",
      "url": "https://x402-web-tools.microtools-x402.workers.dev/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "web-tools": {
      "type": "http",
      "url": "https://x402-web-tools.microtools-x402.workers.dev/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=web-tools&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8veDQwMi13ZWItdG9vbHMubWljcm90b29scy14NDAyLndvcmtlcnMuZGV2L21jcCJ9"
}

{
  "servers": {
    "web-tools": {
      "type": "http",
      "url": "https://x402-web-tools.microtools-x402.workers.dev/mcp"
    }
  }
}

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

extensions:
  "web-tools":
    enabled: true
    name: "web-tools"
    type: streamable_http
    uri: "https://x402-web-tools.microtools-x402.workers.dev/mcp"
    timeout: 300

Quality 73 / 100new

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene71 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
fail
tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: read_url (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); read_url_safe (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); read_pdf (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
pass
tools.token_costabout 1,620 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool history recorded for 0 of the 7 days needed

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

9 tools, about 1,620 tokens to load them all · tool set d0dd3b96e207 · tools last changed 2026-10-20 · checked 2026-10-20 22:23 UTC

Tool changes

2026-10-20healthchangeddescription
before
Free health check. Returns service status, tool prices and network.
after · 63% of words in common
Free health check. Returns service status, version, tool prices, network and the plain-HTTP x402 endpoints.
2026-10-20check_citationadded
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/medium/low) with a note on what matched, is_retracted (OpenAlex is_retracted + Crossref/Retraction Watch notices) and the best match. Data: OpenAlex (CC0, openalex.org) with Crossref REST (crossref.org) for retraction notices and as fallback. Upstream errors are not charged. Costs $0.002 USDC per check via x402.
2026-10-20get_paperadded
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/Retraction Watch notices). Data: OpenAlex (CC0, openalex.org) with Crossref REST (crossref.org) for retraction notices and as fallback. Not-found and upstream errors are not charged. Costs $0.002 USDC per lookup via x402.
2026-10-20search_papersadded
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_year / open_access_only filters. Data: OpenAlex (CC0, openalex.org) with Crossref REST (crossref.org) for retraction notices and as fallback. Upstream errors are not charged. Costs $0.005 USDC per search via x402.

Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 83 / 100

no-repository

provenance55

liveness100

freshness100

hygiene80

+dns-namespace +website +reachable +uptime-100% +updated-0d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://x402-web-tools.microtools-x402.workers.dev/mcp` streamable-http	none	yes	100%	642 ms	2025-11-25	2026-10-20

Tools (9)

`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/medium/low) with a note on what matched, is_retracted (OpenAlex is_retracted + Crossref/Retraction Watch notices) and the best match. Data: OpenAlex (CC0, openalex.org) with Crossref REST (crossref.org) for retraction notices and as fallback. Upstream errors are not charged. Costs $0.002 USDC per check via x402.
`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/Retraction Watch notices). Data: OpenAlex (CC0, openalex.org) with Crossref REST (crossref.org) for retraction notices and as fallback. Not-found and upstream errors are not charged. Costs $0.002 USDC per lookup via x402.
`health`	Free health check. Returns service status, version, tool prices, network and the plain-HTTP x402 endpoints.
`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.
`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.
`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 / 15 s, no logins or paywall bypass. For PDFs use read_pdf. Failed reads are not charged. Costs $0.002 USDC per call via x402.
`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 {flagged, risk none\|low\|medium\|high, signals}. Heuristic, not a guarantee. Failed reads are not charged. Costs $0.003 USDC per call via x402.
`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_year / open_access_only filters. Data: OpenAlex (CC0, openalex.org) with Crossref REST (crossref.org) for retraction notices and as fallback. Upstream errors are not charged. Costs $0.005 USDC per search 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/VTT subtitles. YouTube/TikTok/Instagram and other page URLs are rejected. Failed transcriptions and files with no detected speech are not charged. Costs $0.01 USDC per file via x402.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "dev.workers.microtools-x402.x402-web-tools/web-tools",
  "title": "x402 Web Tools",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://x402-web-tools.microtools-x402.workers.dev/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.2.0",
  "websiteUrl": "https://x402-web-tools.microtools-x402.workers.dev/",
  "description": "Web/PDF to Markdown, transcription, paper search and citation checks. Pay per call in USDC via x402."
}