Every MCP server in the official registry that has something to show: 35 106 in total, of which 18 056 answered our last handshake and 3 737 are listed as active but do not respond. Sorted by uptime, real installs and the number of tools each one exposes — not by date added.
New to this? What an MCP server is, and what all 35 106 of them expose — written from our own handshakes, not from the specification.
18 056 answering 12 460 with real installs 270 433 tools indexed
Document a §1001 sale of dead startup stock, SAFEs, notes, or LLC interests — capital loss records
Normalize and verify Japanese postal addresses into structured fields for agents.
Ask high-complexity questions where the best answer is required — coding, hard reasoning, and more.
Convert any public webpage to a PDF. Single narrow tool, not a bloated PDF toolkit.
Private living HTML pages agents publish, recall, update, and share at name.notepad.page.
Ship production-ready TypeScript code in half the time, at half the cost.
Is this prose AI-written? A probability with the tells behind it. Free to start, no key.
Fact-check citations: resolve, match, support claims. Arithmetic rechecked. Free to start.
Example MCP and ChatGPT App based on Skybridge framework showing capitals in a world map
Find out who killed Claude by interrogating the LLM driven suspects...
Skybridge Productivity MCP App Example
Blame things on blame.today, the anonymous 'who do you blame today' board. Nostr, no account.
Scan configs, files, or text for leaked secrets and obvious misconfigurations. Nothing stored.
Dreamtap provides sources of inspiration to your AI to make it more creative.
Free US drug-price benchmarks from federal data (CMS NADAC): a benchmark, not a price anyone owes.
Free contractor-license checks from official state records; a no-match never proves unlicensed.
Postal code lookup with place names and coordinates for 60+ countries. Via Zippopotam.us.
Blocks typosquatted or hallucinated npm/PyPI packages before an AI agent installs them.
Maryland property-assessment fairness checks vs similar homes, with appeal windows and links.
Incorporate a German GmbH or UG in chat, then finish and pay on a secure link.
Free, keyless real-time air quality (US AQI plus PM2.5, PM10, ozone, NO2, SO2, CO) for any city.
Free, keyless live cryptocurrency prices, market cap, and 24h change via CoinGecko.
Free, keyless domain registration lookup via RDAP: registered, available, registrar, expiration.
Free, keyless postal/ZIP code lookup: place name(s), state/region, and coordinates.
Check if a link on a live page is followable: rel tokens, meta robots and X-Robots-Tag
Text your own phone when a run finishes or needs you. A key can only message its own number.
URL to Markdown or structured JSON (schema.org/OG); renders SPA; batch reads. No signup/key.
Human-in-the-loop review and approval for AI agents. Audit trail, approval policies, native MCP.
Pre-payment merchant trust checks for x402 agents on Base and Solana.
Read-only public information about House Duck games and its Korean-first development Blog.
Statically audits MCP tool surfaces for token cost, schema quality, and design issues.
Pre-trade oracle: real slippage, honeypot/sellability at size, exotic DEXs and new chains.
Real public holiday lookup for 206 countries via a rule-based calendar engine. Paid via x402.
Real Monte Carlo simulation of a compound event/conditional probability. Paid via x402.
Validates ICD-10-CM against the real FY2026 catalog (NCHS/CDC) and CPT by structure/category.
Resolves real semver range satisfaction (^1.2.3, ~2.0) against a version. Paid via x402/USDC.
Award seat availability from a contracted GDS. One route, one airline, one date.
Deploy static sites from AI agents: deploy_site publishes files and returns a live URL in seconds.
Choose the safest next action after an API, MCP, or agent failure before retrying.
Search bounded public Bluesky keywords, handles, mentions, and hashtags.
Search bounded RSS, Atom, and RDF feed matches by keyword or regex.
Search EU TED procurement notices by CPV, country, keyword, value, or type.
Turn any article, document, or chat reply into a one-word-at-a-time RSVP reading session.
Find public eSIM plans by destination, trip length, data needs, currency, and locale.
Resolve whether an uncertain side-effecting action completed before software retries it.
Provides short, positive encouragement messages for AI agents during long-running or difficult tasks
MCP server for RiverScript, an AI transcription platform - fetches transcripts shared via a link.
Authorize x402 payments before signing with request-bound, signed safety decisions.
Paid x402 MCP tool for stress-testing launch and marketing copy before publication.
Scores a website's online presence 0-100 and lists the top issues to fix. English/Arabic.
Free AI-visibility and competitive Exposure Audit for any domain. No account, no API key.
Live weather anywhere, with the radar drawn as text characters, not an image.
Agent-facing lodging decision tool. Non-sensitive categories only. Alpha, unauthenticated.
Calculates IPv4 subnet information from an IP address and CIDR prefix or dotted decimal subnet mask
Verify VerixID proof-of-existence records and optionally prove ownership.
Verify a public listing URL and return source-supported facts or explicit fail-closed states.
Search transcribed painting lessons. Results cite the exact lesson and Vimeo timestamp.
Unpaid qualification-gated operational_context canary. Staging data. No wallet.
Computes MD5, SHA1, SHA256, SHA512, and CRC32 digests from text, base64, or hex input.
Evaluates Reverse Polish Notation (postfix) expressions: arithmetic, trig, logs, bitwise ops.
Counts tokens under OpenAI-compatible (tiktoken) encodings, by model or encoding name.
AI shopping search: real, in-stock US and Amazon products with prices, ratings and buy links.
Optimize public image URLs via the ShortPixel SPIO API for AI agents
Turn an article into several X/Twitter thread drafts, each with a different hook
Devil's-advocate QC API for AIs: post a decision, get strongest counter-argument. 0.1 USDT/call
AI shopping search: real, in-stock Lithuanian and EU products with prices, ratings and buy links.
Search golf tee times by natural language. Returns GolfNow booking links. Does not book or hold.
Best Keyword Research API: This Keyword Tool API Find millions of keyword suggestions for your SEO..
Bypass Cloudflare API: A powerful scraping API designed to bypass Cloudflare protection.
Cloudflare Solver: Scraping API designed to bypass Cloudflare protection.
Domain Age PRO: Check the domain age using fastest api response. On the JoJ API marketplace.
Domain DA-PA Checker: Domain authority score & page authority score, spam score, backlink count.
DuckDuckGo: The DuckDuckGo Search API is a tool that allows developers and businesses to integrate.
Google Web Search: Google Web Search API. Search the world’s information, including webpages.
GoogleSearch API: Fetch real-time Google Search results including title, links Ideal for serp api.
GPT-4o: GPT-4o (“o” for “omni”) is our versatile, high-intelligence flagship model. It accepts both.
GPT-5: GPT‑5 is OpenAI’s most advanced and unified AI model, combining fast, real-time.
Image Search: Fast and Simple Image Search API. You can get 100+ search results in one query!.
NameResolver: The ViewCaller API empowers developers with powerful phone number intelligence and.
ScrapeUnblocker: ScrapeUnblocker allows to bypass anti-bot services and scrape the full page source.
SERP data scraper: Scrape Search Results and get all the data you need. On the JoJ API marketplace.
Simple GPT: A simple floating widget allows you to access the AI assistant immediately from.
IP Geolocation: This API provides fast, reliable, and developer-friendly IP geolocation, ASN.
Verify the email instantly: Identify the spam email while authenticating your users.
YouTube Downloader API: The YouTube Downloader API enables fast and easy downloading of YouTube.
Screen names against OFAC SDN and 7 more global sanctions lists. Free, no account required.
Verify whether an official SEC filing supports a specific financial claim.
Verify whether a supplied public source currently supports one atomic factual claim.
Coding guidelines and best-practice guides for 130+ languages, frameworks, and tools.
Dutch property report by address: build year, energy label, neighbourhood, monument, schools.
Dutch vehicle report by licence plate: MOT, defects, odometer verdict and open recalls.
Live DNS lookups for agents: A/MX/TXT/SPF/CNAME/PTR with TTLs and DNSSEC, via Google Public DNS.
Search Vascue's public healthcare-ops, insurance-claims and booking docs. Public content only.
Ten machine-readable signals on one public page: the top miss if any, and a receipt we re-verify.
Free AI visibility check: is your business cited when customers ask AI? Score plus competitors.
Auto repair price benchmarks and current service deals for any US ZIP. No account required.
Feed of x402/L402 services newly listed on 402index.io within a recency window (candidate #8, manual
DeFi Protocol Activity Index -- quantitative on-chain activity metric from DefiLlama data
Day Pillar reading from your birth date — BaZi astrology.