Crypto, web, finance and app data tools

Turn an address, place or landmark into coordinates with a structured address, or coordinates into the nearest address (reverse), from OpenStreetMap. Use for maps, delivery, distance calculations or location lookups.

Hacker News stories by keyword (by relevance or newest) or the current front page: title, link, points, comment count, author, time and discussion URL. Use to see what developers are discussing about a topic.

Fetch a URL's HTTP response headers with the full redirect chain, status, server, caching and a security grade (A-F) based on HSTS, CSP, X-Frame-Options and other headers, listing what is missing. Use for security reviews, redirect debugging or SEO checks.

Validate an IBAN: country, correct length, ISO 13616 checksum, bank code and BBAN, with a reason when invalid (likely typo, wrong length). Works offline for about 80 countries. Use before sending a bank transfer or saving payout details.

Recent insider transactions at a US company from SEC Form 4 filings: insider name and role (CEO, director, 10% owner), buy/sell/award/option exercise, shares, price, value, shares held after and filing link. Set buys_sells_only to see open-market trades only. Use for insider-buying signals.

Who owns an IP address (or a hostname's IP): ASN, network holder, announced prefix, regional registry, country, approximate city and coordinates, reverse DNS. Use for fraud checks, log analysis or finding a site's host.

Search Kalshi, the US-regulated prediction exchange, for open events (Fed decisions, CPI, elections, weather, crypto prices, sports) and get every market's yes bid/ask and last price as probabilities, volume and close time. Use for US economic and political event odds.

Look up legal entities in the global LEI register (GLEIF) by company name or 20-character LEI: exact legal name, status, legal form, jurisdiction, registration number, address and LEI renewal date. Use for KYC, counterparty checks and company identification.

Search Manifold Markets, the largest play-money prediction community, for open questions on AI, tech, science, politics and more, with probability, volume, bettor count and close date. Use for crowd forecasts on topics real-money markets don't cover.

An npm package's latest version, description, license, repository, dependencies, peer dependencies, TypeScript types, size, publish dates, deprecation and weekly downloads. Use to choose or audit a JavaScript dependency.

Known security vulnerabilities for an open-source package from OSV (GitHub advisories, PyPA, RustSec, Go): id, CVE aliases, summary, severity, fixed versions, for all versions or one version. Ecosystems: npm, PyPI, Go, Maven, crates.io, RubyGems, NuGet, Packagist. Use before installing or upgrading.

Perpetual futures on Hyperliquid: hourly funding rate and APR, open interest, 24h volume, mark and oracle price, max leverage, for chosen coins or ranked by open interest, funding or volume. Use for funding arbitrage, leverage sentiment and basis trades.

One Polymarket market by slug, id or URL: question, rules, outcome probabilities, best bid/ask, last trade, 1-day change, volume, liquidity and the order book (top bids and asks with sizes and spread) for each outcome. An event slug returns all its markets. Use before placing a trade or to quote exact odds.

Search open Polymarket prediction markets by keyword (election, bitcoin, fed, AI...) and get each event's markets with live outcome probabilities, best bid/ask, 24h and total volume, liquidity, end date and link. Use to answer what the market thinks will happen, or to find a market to trade.

Most active open Polymarket events right now, ranked by 24h volume, total volume or liquidity, optionally by tag (crypto, politics, sports, economy, tech, ai). Each event lists its markets with live probabilities. Use to see what traders are betting on today.

Places for a postal or ZIP code in about 60 countries: place names, state or region and coordinates. Use to validate addresses, fill forms or locate customers.

One query across Polymarket, Kalshi and Manifold at once: matching open events and markets with current probabilities from each, so real-money and crowd odds can be compared side by side. Use to answer 'what are the odds that...' with every major prediction market.

Crypto protocols ranked by fees paid by users or revenue kept (Tether, Circle, Uniswap, Hyperliquid, chains...) over 24h, 7d and 30d, for all chains or one chain. Use for fundamental analysis and protocol valuation.

Public holidays of 150+ countries and their states/regions, or stock-market holidays (NYSE, ECB TARGET), for any year, and whether a given date is a holiday or business day with the next business day. Use for scheduling, delivery dates, payroll or market-open checks.

A Python package on PyPI: latest version, summary, license, required Python, dependencies, release date, project links and daily/weekly/monthly downloads. Use to choose or audit a Python dependency.

Generate a QR code for any text, URL, wallet address or payment link as SVG or PNG, returned inline as SVG markup and a base64 data URI ready for HTML or chat. Choose size, border and error correction. Use when a user needs a scannable code for a link, Wi-Fi, contact or crypto payment.

Read any RSS or Atom feed (or a website that links one) and get clean JSON items: title, link, date, author, summary text, categories and image, plus feed title and language. Use to monitor blogs, news sites, podcasts or release notes without parsing XML.

Read a public web page and return its main content as clean Markdown with title, author, publish date and language. Use when you need to read, quote or summarise an article or docs page from a URL.

Search published research papers and articles across all publishers (Crossref): title, authors, journal, year, DOI, citation count and abstract, by relevance, date or citations. Use to find and cite sources.

A site's robots.txt rules per user agent, whether AI crawlers (GPTBot, ClaudeBot, Google-Extended, CCBot, PerplexityBot) are blocked, and the URLs listed in its sitemap. Use before crawling a site or for SEO audits.

A Rust crate on crates.io: latest stable version, description, license, total and 90-day downloads, repository, docs, minimum Rust version and dates. Use to choose or audit a Rust dependency.

Search the full text of all SEC filings since 2001 for any word or exact phrase (in quotes), filtered by form type (10-K, 8-K, S-1...) and date: company, form, filing date, period and document link. Use to find every filing mentioning a risk, product, customer or event.

Rank every SEC filer by one reported metric for a period, straight from XBRL filings: revenue, net_income, operating_income, assets, cash, rnd, eps, stockholders_equity, long_term_debt, shares_outstanding or any us-gaap tag, for a year (CY2024) or quarter (CY2025Q2). Use for market-wide screens and league tables.

SOL and SPL token balances of a Solana wallet (Token and Token-2022), with USD values and total where a price is known. Use to check a Solana wallet or confirm a payment arrived.

TLS certificate of a domain: whether it is valid, issuer, subject, valid-from and expiry dates, days left, all SAN hostnames, TLS version and cipher. Use for uptime/expiry monitoring or security checks.

Stablecoins ranked by circulating supply (USDT, USDC, USDe, DAI...) with 1-day, 7-day and 30-day supply change, peg price, mechanism and main chains, plus total USD stablecoin supply. Use to track liquidity flowing into crypto.

Subdomains of a domain found in public Certificate Transparency logs (crt.sh), with first certificate and current validity date. Use for attack-surface mapping, asset inventory or competitor research.

Sunrise, sunset, solar noon, day length, sun elevation, moonrise, moonset, moon phase and illumination for any place (name or coordinates) and date. Use for photography, prayer and event planning, solar or outdoor work.

Detect the technologies a website uses from its headers and HTML: CMS (WordPress, Shopify, Webflow), frameworks (Next.js, React, Vue), CDN and hosting (Cloudflare, Vercel), analytics, chat, payments. Use for lead qualification, sales prospecting or competitor research.

Statistics for a text: words, sentences, characters, paragraphs, reading and speaking time, Flesch reading ease, Flesch-Kincaid grade, Gunning fog, complex-word share, lexical diversity and top keywords. Use to check copy, essays or SEO content.

Convert a date-time (or now) from one time zone to several others, by IANA name, city or abbreviation (Dubai, New York, PST, CET): local time, UTC offset, abbreviation, DST flag and weekday. Use to schedule meetings across time zones.

Great Britain electricity carbon intensity (gCO2/kWh) now, nationally or for a postcode region, with the generation mix (wind, gas, nuclear, solar, imports) and a half-hourly forecast up to 48h including the lowest-carbon slot. Use to schedule EV charging, heat pumps or compute jobs.

Universities worldwide by name and/or country, with official websites and email domains. Use to verify academic email addresses, fill forms or build education lists.

Link-preview metadata of a web page: title, description, Open Graph and Twitter card image, site name, author, publish date, language, canonical URL, favicon and RSS feeds. Use to build link previews, enrich bookmarks or classify a URL without reading the full page.

Latest SEC EDGAR filings of a US-listed company by ticker with links, optionally filtered by form (10-K, 10-Q, 8-K, 4 for insider trades, 13F-HR, S-1). Use for recent disclosures or insider filings.

Reported financials of a US-listed company from SEC 10-K/10-Q filings by ticker: revenue, profit, EPS, cash flow, free cash flow, assets, debt, equity and margins, annual or quarterly. Use when analysing or comparing US stocks and you need filed numbers, not estimates.

SEC profile of a US-listed company: legal name, tickers and exchanges, industry (SIC), state of incorporation, fiscal year end, business address and phone, website, former names, filer category and links to the latest 10-K and 10-Q. Use for due diligence and company research.

Find US-listed companies by name or ticker (e.g. 'nvidia', 'bank of america', 'TSLA'): ticker, exact SEC registrant name and CIK, best matches first. Use to resolve a company name before calling other SEC tools.

US Treasury par yield curve from 1 month to 30 years (percent) for the latest day or any date since 1990, with 10y-2y and 10y-3m spreads, inversion flag and up to 60 days of history. Use for risk-free rates, discounting, macro analysis or answering where 10-year yields are.

Internet Archive Wayback Machine snapshots of a URL: the capture closest to a date, plus the first and latest captures, with direct archive links. Use to see how a page looked before or recover deleted content.

Current weather and a daily forecast (up to 9 days) for any city, address or coordinates: temperature, min/max, humidity, wind, clouds, pressure, sky and precipitation, from the Norwegian Meteorological Institute. Use for travel, events, logistics or energy planning.

Contact details of a company website: emails, phones, social profiles, name and address, from its home, contact, about and imprint pages. Use to find how to reach a business or enrich a lead.

Lead summary of the Wikipedia article that best matches a topic, in any language edition: title, short description, summary paragraph, image, coordinates, Wikidata id and link. Use for quick factual background on a person, place, company or concept.

Find words by relation: synonyms, antonyms, rhymes, near rhymes, sound-alikes, spelling patterns with * and ? wildcards, words that mean something, adjectives describing a noun and more, ranked with definitions. Use for copywriting, naming, poetry and puzzles.

World Bank development data for any country: GDP, GDP per capita, growth, population, inflation, unemployment, life expectancy, CO2, exports, debt, internet use, FDI or any indicator code, by year. Use for country comparisons and market sizing.