mike-tusa

URL reality check for AI agents — returns HTTP status, SHA-256 content hash, classification, readability score, title, and wayback-machine fallback when dead, cached 10 minutes at $0.001 per call.

Generate and validate robots.txt rules for AI crawlers, check which AI bots a live site allows, and look up a sourced AI crawler registry. Free: 20 checks and 60 generate/validate calls per minute; Pro $9/mo. RobotsGate is not affiliated with Meta or any other crawler or agent operator. Quick start: connect directly to https://robotsgate.mike-tusa.workers.dev/mcp (Streamable HTTP, no Smithery account needed).

Ask about PriceMoved, a competitor pricing-page monitor that is waitlist-only today: its planned Free, Starter and Pro plans and early prices ($0, $15 and $39 a month, subject to change). It can also check whether a site's robots.txt lets PriceMovedBot fetch a URL, about 10 checks per minute and 30 per hour per network. No key needed; it doesn't monitor pages or join the waitlist for you. Quick start: connect directly to https://pricemoved.com/mcp (Streamable HTTP, no Smithery account needed).

Find and censor English swear words in text, including disguised spellings like f.u.c.k, sh1t and fuuuck, with each match's position and a censored copy. This is a word-list filter, not AI moderation: it is English only and does not understand context. Free without a key (10 checks/min, 200/day per IP); a free API key gives 1,000 checks/day with commercial use allowed, and submitted text is never stored or logged. Quick start: connect directly to https://profanity-api.mike-tusa.workers.dev/mcp

Check an email address or domain against the open-source disposable-email-domains list (CC0) and flag role addresses, free webmail providers, look-alike domains and likely typos. List-based and offline: no MX lookup, and addresses are not stored or logged. Free: about 10 checks per minute without a key, or 120 per minute and 1,000 per month with a free key (on request during early access); paid plans are planned. Quick start: connect directly to https://burnercheck.mike-tusa.workers.dev/mcp (St

Find meeting times that fall inside working hours across several IANA time zones, DST-aware, with ranked UTC slots, each zone's local time and an optional calendar (ICS) event. Free, no key: up to 5 zones, 7 days and 5 slots per call, about 10 tool calls per minute. Larger limits (12 zones, 31 days, 20 slots) are available on a paid plan. Quick start: connect directly to https://meetzone-api.mike-tusa.workers.dev/mcp (Streamable HTTP, no Smithery account needed).

Business-day and public-holiday math for 29 countries. Check whether a date is a business day, add or subtract business days, count business days between two dates, and list holidays. Holiday rules are built from official government sources. No key needed; an optional free API key from the homepage raises the limits. Quick start: connect directly to https://workdayapi.mike-tusa.workers.dev/mcp (Streamable HTTP, no Smithery account needed).

Validate JSON-LD structured data against the Schema.org vocabulary: syntax, @context/@type/@graph structure, unknown types and properties with did-you-mean suggestions, and value types. Paste markup or HTML with ld+json blocks; RichProof never fetches URLs and never stores what you send. Free with no key: about 30 validations per minute per IP and a shared pool of about 20,000 per day; MCP input up to 60,000 characters (64 KB request body). Schema.org vocabulary used under CC BY-SA 3.0; RichProo

Look up a domain's age and registration record via RDAP, the WHOIS successor: registration date, age in days, expiry, registrar, status flags and nameservers. Subdomains and URLs are reduced to the registered domain. Free and anonymous, about 10 uncached lookups per minute; no key needed. Quick start: connect directly to https://domainage.mike-tusa.workers.dev/mcp (Streamable HTTP, no Smithery account needed).

Lint hreflang annotations for international SEO: language, script and region codes (en-UK, en_US, jp and other common mistakes, with fixes), x-default, self-reference, canonical conflicts, duplicates and reciprocal return links across a set of pages. Paste page HTML, an XML sitemap with xhtml:link alternates, or a JSON set of pages; HrefGate never fetches URLs and never stores what you send. Free with no key: about 30 checks per minute per IP and a shared pool of about 20,000 per day; MCP input

Readability and text-stats API: Flesch Reading Ease, Flesch-Kincaid grade, Gunning Fog, SMOG, Coleman-Liau, ARI, consensus grade, plus word/sentence/syllable counts. Submitted text is never stored or logged. Quick start: connect directly to https://plaingrade-api.mike-tusa.workers.dev/mcp (Streamable HTTP, no Smithery account needed).

Parse a User-Agent string into browser, engine, OS, device type and CPU, and flag known bots, search crawlers, AI crawlers and AI agents that identify themselves in the User-Agent. One read-only tool, parse_user_agent; no API key needed for light use. Matches are by User-Agent only and can be spoofed. Quick start: connect directly to https://uaparse.mike-tusa.workers.dev/mcp (Streamable HTTP, no Smithery account needed).

Render 1200x630 Open Graph social preview images from 5 templates (blog, launch, docs, minimal, gradient) with your title, subtitle, emoji, logo and colors, and get back a cacheable PNG URL plus ready-to-paste og:image meta tags. Free with no key: about 20 new renders and 120 image requests per minute per IP, and free images carry a small "ogforge" badge. Pro is coming soon; nothing is for sale yet. Quick start: connect directly to https://ogforge.mike-tusa.workers.dev/mcp (Streamable HTTP, no

US public-data tools for AI agents: CPSC product recalls, Federal Register documents, Internet Archive search and Wayback snapshots, and US public-company financials and SEC filings. Each tool runs a pay-per-event Actor on your own Apify account (sign in with Apify when connecting); you pay standard Apify Store prices. Not affiliated with, endorsed by, or sponsored by Apify, the SEC, CPSC, the Federal Register, or the Internet Archive.

Free SSL/TLS certificate checker: live TLS handshake, expiry, chain trust, hostname match, TLS version, A/B/C/F grade. Works without a key (about 10 checks per minute and 200 per day per IP); a free API key, sent as an Authorization: Bearer header, allows 60 per minute and 1,000 per day. There is no paid plan. Quick start: connect directly to https://certguard.mike-tusa.workers.dev/mcp (Streamable HTTP, no Smithery account needed).

HeaderGuard is a free security-headers scanner for any public website: it checks HTTPS and HSTS, Content-Security-Policy, framing, MIME sniffing, Referrer-Policy, Permissions-Policy, cross-origin isolation and cookie flags. You get a 0–100 score, an A+ to F grade, per-header findings and copy-paste fixes. No key needed (about 30 scans per minute per IP); an optional HeaderGuard Pro license key ($9/mo) raises that to about 120 per minute. Quick start: connect directly to https://headerguard.mike

Free remote MCP server that checks a domain's email authentication (SPF, DKIM, DMARC, BIMI, MX, MTA-STS, TLS-RPT) and returns a 0–100 score, an A–F grade and plain-English fixes. No key needed for light use; DnsGuard Pro ($9/mo) raises the limits. ## Quick start Add to your MCP client config (most clients accept this; VS Code uses a `servers` key instead of `mcpServers`): ```json {"mcpServers":{"dnsguard":{"type":"http","url":"https://dnsguard.mike-tusa.workers.dev/mcp"}}} ``` Then ask your a

Validate IBANs, BICs (SWIFT codes), EU VAT numbers, GTIN/EAN/UPC barcodes and ISBNs offline: format and check digits, with auto-detection and the reason when a code fails. Free without a key at about 20 checks per minute per IP; an optional API key (free keys issued on request during early access) raises the limit. Format check, not a compliance check: it does not query VIES or any bank directory, so a valid result does not prove the account, VAT registration or product exists. Quick start: con

Repair broken JSON from LLM output (code fences, prose, trailing commas, single quotes, unquoted keys, comments, truncation) and get valid JSON back with every fix listed. Optionally validate the result against a JSON Schema, with type coercion. Free, no key needed: about 10 tool calls per minute and 30 per day per IP; a free API key raises that to about 30 per minute and 1,000 per month. Quick start: connect directly to https://jsonmend.mike-tusa.workers.dev/mcp (Streamable HTTP, no Smithery a