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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "mcp-toolbelt": {
      "type": "http",
      "url": "https://papacasper.com/mcp"
    }
  }
}

claude mcp add --transport http mcp-toolbelt https://papacasper.com/mcp

[mcp_servers.mcp-toolbelt]
url = "https://papacasper.com/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "mcp-toolbelt": {
      "type": "remote",
      "url": "https://papacasper.com/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "mcp-toolbelt": {
      "type": "http",
      "url": "https://papacasper.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=mcp-toolbelt&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vcGFwYWNhc3Blci5jb20vbWNwIn0%3D"
}

{
  "servers": {
    "mcp-toolbelt": {
      "type": "http",
      "url": "https://papacasper.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "mcp-toolbelt": {
      "httpUrl": "https://papacasper.com/mcp"
    }
  }
}

extensions:
  "mcp-toolbelt":
    enabled: true
    name: "mcp-toolbelt"
    type: streamable_http
    uri: "https://papacasper.com/mcp"
    timeout: 300

Quality 79 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2024-11-05; 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: redirect_chain_check (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); json_ld_schema_validator (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); cors_policy_check (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
pass
tools.token_costabout 3,346 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependenciesn/a · weight 15

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

29 tools, about 3,346 tokens to load them all · tool set 055011a3158d · checked 2026-10-20 22:55 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

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 77 / 100

no-repository

provenance45

liveness100

freshness85

hygiene80

+dns-namespace +reachable +uptime-100% ~updated-52d-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://papacasper.com/mcp` streamable-http	none	yes	100%	152 ms	2024-11-05	2026-10-20

Tools (29)

`ai_crawler_policy_check`	Check a site's robots.txt for explicit directives targeting known AI crawlers (GPTBot, ClaudeBot, CCBot, PerplexityBot, Google-Extended, Bytespider, Amazonbot, and others used for LLM training or AI search/answer products), and check for an llms.txt file. Useful for publishers deciding whether their content policy toward AI crawlers matches their intent, or for auditing a competitor's stance.
`broken_link_check`	Crawl a site starting from a URL (same-origin pages only, bounded by maxPages) and check every linked URL for broken status codes. Returns broken links with the page(s) they were found on. Note: some external sites (e.g. social platforms) block automated HEAD/GET requests and may show up as false positives.
`check_open_ports`	TCP-connect scan a host for open ports. Defaults to a list of ~20 common service ports (SSH, HTTP/S, mail, DBs, etc.) if none are given. For checking your own infrastructure's exposure — capped at 100 ports per call.
`check_robots_sitemap`	Check whether a site has a valid robots.txt and sitemap.xml, and return their raw contents (truncated).
`cors_policy_check`	Send a probe request with a foreign Origin header to a URL and report its CORS response headers. Flags wildcard-origin + credentials combinations and arbitrary-origin reflection, both common CORS misconfigurations.
`dns_propagation_check`	Query a DNS record for a domain against several major public resolvers (Google, Cloudflare, Quad9, OpenDNS) in parallel and compare the answers. Flags mismatches, which usually mean propagation is still in progress after a DNS change.
`domain_availability_check`	Check whether a domain is registered, plus scan common typo-squat variants (adjacent-key substitution, letter omission/doubling, transposition) across popular TLDs (.com, .net, .org, .io, .co, .ai, .app, .dev) for brand-protection or domain-flipping research. WHOIS-based; capped at 40 variants checked per call for latency.
`domain_health_check`	Check a domain's registration expiry (via WHOIS) and DNS health: nameservers, A/AAAA, MX, SPF, and DMARC records. Flags common misconfigurations.
`domain_report`	Bundle: runs seo_audit, domain_health_check (WHOIS + DNS: nameservers, A/AAAA, MX, SPF, DMARC), and email_deliverability_check (DKIM, SPF lookup-count, DMARC strength, DNSBL) against a domain in one call, one charge. Cheaper than calling the three tools separately. Each sub-check reports independently, so a failure in one doesn't void the others.
`email_address_validate`	Validate a single email address: RFC syntax check, MX record lookup on the domain, disposable/temporary-email-provider detection, and role-account detection (info@, admin@, etc.). Per-address check — different from email_deliverability_check, which audits a whole domain's sending reputation (SPF/DKIM/DMARC/PTR/DNSBL).
`email_deliverability_check`	Deep-dive email deliverability check for a domain: MX records + reverse-DNS (PTR) on each MX host, common DKIM selector probing, SPF lookup-count (RFC 7208 caps at 10), DMARC policy strength, and DNSBL blacklist lookups (Spamhaus Zen, SpamCop, Barracuda) on MX IPs. Note: public-resolver DNSBL queries are frequently rate-limited or blocked by Spamhaus, so a `listed: null` result means "unknown", not "clean" — treat null results as inconclusive, not as a clean bill of health.
`favicon_manifest_check`	Check a site for favicon, apple-touch-icon, web app manifest, and theme-color presence — a quick completeness check for browser/OS chrome and PWA metadata.
`github_repo_health_check`	Check a GitHub repository's health signals: stars, forks, open issues, license, archived/disabled status, and days since last push. Flags likely-abandoned or unlicensed repos. Useful before depending on a repo.
`ip_geolocation_asn_lookup`	Resolve a hostname to its IPv4 addresses and look up each one's ASN, network prefix, country code, and network owner via Team Cymru's DNS-based WHOIS service (no API key). Country-level only — not city/street geolocation.
`json_ld_schema_validator`	Fetch a URL, extract every JSON-LD (<script type="application/ld+json">) block, and validate basic structure — @context/@type presence plus required fields for common schema.org types (Article, Product, Organization, WebSite, LocalBusiness, BreadcrumbList, FAQPage). Reports per-block errors rather than failing the whole call on one bad block.
`package_vulnerability_check`	Look up a package (optionally pinned to a version) against OSV.dev's aggregated vulnerability database (GitHub Advisories, PyPA, RustSec, Go vuln DB, etc.) for known CVEs/advisories. Supports npm, PyPI, crates.io, RubyGems, Go, Maven, NuGet, and Packagist ecosystems. Useful before adding a dependency.
`page_performance_check`	Fetch a URL and measure time-to-first-byte, total fetch time, and response size. Flags missing compression, missing Cache-Control, oversized payloads, and slow TTFB.
`pagespeed_insights`	Run Google's real PageSpeed Insights (Lighthouse + Chrome UX Report) against a URL: performance score, Core Web Vitals (LCP, CLS, INP/TBT), and real-user field data where available. Authoritative version of a local timing check — hits Google's own infrastructure. Works without an API key at low volume; set GOOGLE_PAGESPEED_API_KEY server-side for higher throughput.
`redirect_chain_check`	Follow a URL through every HTTP redirect hop and report the full chain, final destination, and issues like redirect loops, too many hops, or HTTPS-to-HTTP downgrades.
`safe_browsing_check`	Check a URL against Google Safe Browsing's malware/phishing/unwanted-software/PUA blocklists. Requires GOOGLE_SAFE_BROWSING_API_KEY to be configured server-side (free Google Cloud API key).
`security_headers_audit`	Fetch a URL and audit its response for security-relevant HTTP headers (HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy). Flags missing/misconfigured headers with a score.
`seo_audit`	Fetch a URL and run an SEO audit: title/meta description length, canonical tag, Open Graph + Twitter Card tags, html lang attribute, viewport meta, heading structure, image alt-text coverage, internal/external link counts and generic-anchor-text detection, robots meta (noindex/nofollow), structured data (JSON-LD) presence, and robots.txt/sitemap.xml presence.
`sitemap_url_validator`	Parse a site's sitemap.xml (following one level of sitemap-index nesting) and check the HTTP status of every listed URL. Concurrency-limited, capped at 200 URLs checked per call. Reports broken/redirecting URLs found in the sitemap.
`ssl_cert_check`	Connect to a host over TLS and report its certificate's expiry date, days remaining, issuer, and subject.
`ssl_labs_grade`	Full SSL Labs-style TLS assessment: overall letter grade, protocol support (TLS 1.0-1.3), cipher strength, certificate chain issues, and known vulnerabilities (Heartbleed, POODLE, etc.) for each endpoint. Slower than ssl_cert_check (can take up to ~90s on a cold cache; SSL Labs caches results for 24h server-side).
`structured_data_extract`	Fetch a URL and extract structured data deterministically: JSON-LD blocks, OpenGraph/meta tags, and optional caller-supplied CSS-selector fields (e.g. { price: '.product-price', title: 'h1' }). No LLM involved — pure HTML parsing via CSS selectors, so results are exact matches only, not summarized or inferred.
`tech_stack_fingerprint`	Fetch a URL and fingerprint its likely tech stack from response headers (server, x-powered-by, x-generator) and HTML markers (generator meta tag, framework/CMS-specific script or class patterns). Best-effort — not exhaustive, no additional paths are probed.
`url_to_markdown`	Fetch a URL and return its main text content as clean, readable plain text/markdown-ish output. Strips scripts, styles, and HTML tags.
`websocket_endpoint_check`	Test a WebSocket endpoint (ws:// or wss://): attempts the handshake, reports success/failure, time-to-open in ms, and close code/reason. Useful for verifying a WebSocket server is reachable and completes its upgrade handshake before you wire real traffic to it.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "com.papacasper/mcp-toolbelt",
  "title": "mcp-toolbelt",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://papacasper.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.1.0",
  "description": "29 pay-per-call DNS, SEO, SSL, security, and dev tools for AI agents. x402, no API key."
}