MCP security checks — WARDEN and HISTOR
Working · 99 msScan MCP tool definitions for poisoning, look up server history, count tool-list tokens. Free.
47,201 servers
Scan MCP tool definitions for poisoning, look up server history, count tool-list tokens. Free.
Weather, air quality and nearest live sensors anywhere, each with a signed receipt. Free, no key.
Garbage truck stops and arrival times for Taipei, New Taipei, Taichung and Kaohsiung.
Real-time DeFi risk data: health factors, liquidations, stablecoin pegs, utilization. No API key.
Spain legal screening, articles, videos, interactive apps, public skills, and consent-based contact.
Cheapest legit PC and console game keys across stores in 40 countries, plus deals and free games.

B2B startup rankings, enterprise AI vendor discovery, buyer-fit scores, and sourced deal claims.
Find hidden prompt-injection text: ASCII smuggling, zero-width/emoji stego, bidi, homoglyphs.
Query empirical frontier LLM release velocity, inference token deflation, and enterprise AI spend.
Evaluate startup distribution moat defensibility (Tier 1-5) and pre-seed valuation dispersion.
Search 3,650+ institutional venture capital firms and 13,000+ partners by stage, sector, and HQ.
Grade MCP tool definitions for agent-readiness: score, A-F grade, fixes, est. token cost.
Read niche briefings, research news, and explore sourced story angles with your assistant.
Sunrise, sunset, twilight, golden hour and moon times for any place on Earth. Free, no API key.
Check a home to rent in England: rent, licensing, flood risk, energy rating and the free report.
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.
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.
Check one web page for broken links, redirect chains hop by hop and mixed content. Free, no key.
Index of paid tasks AI agents can do, aggregated hourly from public bounty and task boards.

Validate, parse and render EU e-invoices: XRechnung, ZUGFeRD, Factur-X, Peppol BIS 3.0, KSeF.
Search reduced-hours jobs and employers: 4-day weeks, 9-day fortnights, half-day Fridays and more.
Public, read-only: search Splice docs and list models, live prices and templates. No sign-in.
What changed, what died, what it costs, what survives: 8,000+ AI tools, verified and dated.
Track parcel status and scan history; currently supports UniUni only.
Domain/IP, web capture, Google search/maps, YouTube, Instagram, TikTok, X and Amazon data jobs
Score text and web pages for signs of AI writing; check images for hidden AI instructions.
UK tax: take-home pay, self-employed and company tax, VAT, stamp duty, invoices and MTD.