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Discover Model Context Protocol servers from the official registry. Publisher metadata with transparent provenance — not a security certification.
Official MCP RegistryLast indexed: 2026-11-12 02:17:06 UTC
Active61184
Remote41444
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Remote HTTP
Listed in registry
MailAlign
dev.workers.mike-tusa.mailalign/mailalign
Email header analyzer: SPF/DKIM/DMARC/ARC verdicts, domain alignment, hop delays. No lookups.
Remote HTTP
Listed in registry
LinkPulse
dev.workers.mike-tusa.linkpulse/linkpulse
Check one web page for broken links, redirect chains hop by hop and mixed content. Free, no key.
Remote HTTP
Listed in registry
JsonMend
dev.workers.mike-tusa.jsonmend/jsonmend
Repair broken JSON from LLM output and validate it against a JSON Schema.
Remote HTTP
Listed in registry
HrefGate
dev.workers.mike-tusa.hrefgate/hrefgate
Lint hreflang: codes, x-default, self-reference, canonical, return links. Never fetches URLs.
Remote HTTP
Listed in registry
HeaderGuard
dev.workers.mike-tusa.headerguard/headerguard
Scan a website's HTTP security headers (HSTS, CSP, framing, COOP/CORP, cookies). Score + fixes.
Remote HTTP
Listed in registry
GlyphGuard
dev.workers.mike-tusa.glyphguard/glyphguard
Find hidden Unicode (zero-width, bidi, tag payloads), homoglyphs and lookalike names in text.
Remote HTTP
Listed in registry
DomainAge
dev.workers.mike-tusa.domainage/domainage
Domain age and RDAP lookup: registration date, age, expiry, registrar, status and nameservers.
Remote HTTP
Listed in registry
DnsGuard
dev.workers.mike-tusa.dnsguard/dnsguard
Check a domain's email authentication: SPF, DKIM, DMARC, BIMI, MX, MTA-STS, TLS-RPT. Score + fixes.
Remote HTTP
Listed in registry
DiffMint by Harlo
dev.workers.mike-tusa.diffmint/diffmint
Diff two texts by line, word or char: unified diff, HTML redline, patch apply, similarity.
Remote HTTP
Listed in registry
CronSpell
dev.workers.mike-tusa.cronspell/cronspell
Validate and explain cron expressions; list next/previous run times in any time zone, DST-aware.
Remote HTTP
Listed in registry
ContrastKit
dev.workers.mike-tusa.contrastkit/contrastkit
WCAG color contrast checks, nearest accessible color, CSS color conversion and palette pair checks.
Remote HTTP
Listed in registry
CheckDigit
dev.workers.mike-tusa.checkdigit/checkdigit
Offline check-digit validation for IBAN, BIC, EU VAT, GTIN/EAN/UPC and ISBN. Format check only.
Remote HTTP
Listed in registry
CertGuard
dev.workers.mike-tusa.certguard/certguard
Free SSL/TLS certificate checker: expiry, chain trust, hostname match, TLS version, A/B/C/F grade.
Remote HTTP
Listed in registry
x402 Web Tools
dev.workers.microtools-x402.x402-web-tools/web-tools
Web/PDF to Markdown, transcription, paper search and citation checks. Pay per call in USDC via x402.
Remote HTTP
Listed in registry
x402 SEC EDGAR Lookup
dev.workers.microtools-x402.x402-sec-edgar/sec-edgar
SEC EDGAR company lookup, filings, XBRL financials and filing text. Pay per call in USDC via x402.
Remote HTTP
Listed in registry
x402 Package Advisories
dev.workers.microtools-x402.x402-package-advisories/package-advisories
Package vuln advisories from OSV.dev: CVEs, severity, fixes, manifest audit. Pay per call via x402.
Remote HTTP
Listed in registry
x402 Email Verifier
dev.workers.microtools-x402.x402-email-verifier/email-verifier
Email verification for AI agents: syntax, MX, disposable, role, score. $0.001 USDC/call via x402.
Remote HTTP
Listed in registry
x402 Domain Lookup & DNS Email Auth
dev.workers.microtools-x402.x402-dns-auth-checker/dns-auth-checker
Domain lookup (DNS records + RDAP registrar/age/expiry), bulk, and SPF/DKIM/DMARC audit via x402.
Remote HTTP
Listed in registry
The Wild
dev.workers.mhoydich.the-wild-x402/the-wild
Read-only tools for The Wild: spirits, altars, prices. Prayers, candles, witness stones are x402.
Remote HTTP
Listed in registry
Web Access Gateway
dev.workers.mattskowronis.web-access-gateway/web-access
Paid web, news, company, product, and geographic search plus clean page reading for agents.