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Every listed MCP server — filter by category, type, hosting, and auth.
Domain age and RDAP lookup: registration date, age, expiry, registrar, status and nameservers.
Lint hreflang: codes, x-default, self-reference, canonical, return links. Never fetches URLs.
Repair broken JSON from LLM output and validate it against a JSON Schema.
Check one web page for broken links, redirect chains hop by hop and mixed content. Free, no key.
Email header analyzer: SPF/DKIM/DMARC/ARC verdicts, domain alignment, hop delays. No lookups.
Find meeting times that overlap working hours across IANA time zones, DST-aware. Free tier.
Render 1200x630 Open Graph social preview images from templates; returns a cacheable PNG URL.
Offline phone-number validation and formatting (E.164, region, line type). No carrier lookup.
English readability scores (Flesch, Flesch-Kincaid, Fog, SMOG) and text stats. Text never stored.
English profanity filter: find and censor swear words, incl. obfuscations. Word list, not AI.
Validate JSON-LD structured data against the Schema.org vocabulary. Free; never fetches URLs.
Generate, validate and check robots.txt rules for AI crawlers. Free; optional Pro key.
Find hidden prompt-injection text: ASCII smuggling, zero-width/emoji stego, bidi, homoglyphs.
Grade MCP tool definitions for agent-readiness: score, A-F grade, fixes, est. token cost.
Business-day and public-holiday math for 29 countries: add business days, days between, holidays.
Free list of Rainmaker tools + paid need-to-tool router. x402 $0.005 USDC, Base. As is, no warranty.
Extract tables from a PDF. x402 $0.01 USDC, Base. As is, no warranty.
Public https page to markdown. x402 $0.005 USDC, Base. As is, no warranty.
https JSON URL to tidy markdown. x402 $0.005 USDC, Base. As is, no warranty.
HTML string or https URL to markdown. x402 $0.005 USDC, Base. As is, no warranty.
https CSV to headers and rows. x402 $0.005 USDC, Base. As is, no warranty.
Page title, description and Open Graph tags. x402 $0.005 USDC, Base. As is, no warranty.
RSS/Atom feed to markdown items. x402 $0.005 USDC, Base. As is, no warranty.
https text to counts and sha256. x402 $0.005 USDC, Base. As is, no warranty.