Crypto, web, finance and app data tools

Aave V3 position of any wallet: collateral, debt and remaining borrowing power in USD, LTV, liquidation threshold, health factor and how far collateral can fall before liquidation. Use for liquidation alerts.

Next transaction nonce of an EVM address (confirmed and pending), pending tx count, native balance, contract flag and EIP-7702 delegate. Use before signing or to detect stuck transactions.

Score 0-100 how ready a website is for AI agents: llms.txt, agent card, MCP manifest, OpenAPI spec, x402 payments, AI-crawler rules in robots.txt, sitemap and structured data, with suggestions.

Live US airport disruptions from the FAA: closures, ground stops, ground delay programs and arrival or departure delays with reason, average and max delay and expected end. Filter by airport code (JFK, LAX).

Details of an iPhone/iPad app on the Apple App Store by id or store URL: developer, rating, price, genre, version and update date. Use for app or competitor research.

User reviews of an iPhone/iPad app from the Apple App Store, by app id or store URL: rating, title, text, date and version, plus rating counts. Use to analyse app feedback.

Search the Apple App Store for a keyword and get up to 50 apps in rank order with full details. Use for ASO keyword research or finding competing apps.

Search arXiv preprints (AI, physics, math, CS, quant finance...) by keywords or field query: title, authors, abstract, categories, dates and PDF link, by relevance or newest. Use for literature review or tracking new research.

AWS EC2 on-demand hourly and monthly prices in 21 regions: one instance type, or the cheapest types with at least N vCPUs and GB of memory in a family (GPU, m7i, Compute optimized...). Linux or Windows.

Azure retail prices for a VM SKU (e.g. Standard_D4s_v5, Standard_NC24ads_A100_v4) in one region or all regions: Linux and Windows pay-as-you-go, spot and 1/3-year reserved hourly rates, cheapest region first.

Battery storage (BESS) day-ahead arbitrage revenue for a European bidding zone over up to a year of historical prices: annualised revenue per MW, cycles and payback. Use when sizing or screening a battery project or comparing zones. Dates are YYYY-MM-DD.

Balance of a Bitcoin address (confirmed and pending), total received and sent, transaction count and its latest 10 transactions with net amount. Use to check a BTC payment or wallet.

Bitcoin network fee rates in sat/vB for next block, 30 minutes, 1 hour and economy, plus mempool size, block height and the cost of a typical payment. Use right before sending BTC.

Status of a Bitcoin transaction: confirmed or pending, confirmations, block, time, fee and fee rate, RBF flag, inputs and outputs. Use to confirm a BTC payment or decide whether to bump a fee.

Find books by title, author or ISBN (Open Library): authors, first publication year, editions, pages, ISBNs, subjects, publishers, languages, rating and cover image. Use for book lookups, reading lists or metadata.

Current policy interest rates of about 40 central banks (Fed, ECB, BoE, BoJ, PBoC, SNB, RBI...) with the date of the latest value, highest first, from the BIS. Filter by country or currency code.

Blockchains ranked by DeFi total value locked with share of the market, gas token and chain id. Use to compare ecosystems (Ethereum, Solana, Base, Arbitrum...) or track where capital is moving.

Search ClinicalTrials.gov by condition, drug/device or sponsor: status, phase, enrollment, start and completion dates, sponsor, interventions and countries. Use for pharma, biotech and patient research.

Financial health report of any US-listed company from its SEC filings, by ticker or name: 0-100 health score with reasons, verdict, latest annual figures, 5-year revenue and profit CAGR, margin and free cash flow trend, insider open-market buys and sales, and recent 10-K, 10-Q and 8-K links. Use for stock research, credit checks or a quick read on a public company.

Open jobs at any company from its applicant tracking system (Greenhouse, Lever, Ashby, SmartRecruiters, Workable, Recruitee, Personio), found from a name, careers page or board URL. Rows: title, department, location, remote/hybrid/onsite, employment type, posting date, salary range when published, apply link; filter by keywords, location, remote and age; optional full description. For job search agents, hiring signals and sales intelligence.

ABI and readable function/event signatures of a verified smart contract from Sourcify, with contract name, compiler, licence, proxy implementation and deployer. Use before calling or decoding a contract.

What is at an EVM address: wallet (with EIP-7702 delegate) or contract, bytecode size, token standard (ERC-20/721/1155), name, symbol, decimals, supply, owner() and proxy implementation. Use before interacting with an unknown address.

Convert a value between units of length, area, volume, mass, energy (kWh, MWh, BTU, GJ), power, pressure, temperature, speed, data size, time and compound units like kg/m^3 or mpg. Exact, no lookup tables to maintain.

Facts about a country by name or ISO code: official name, capital, region, languages, currencies, calling code, borders, area, internet TLD, coordinates, UN membership and flag. Use to enrich addresses, forms and datasets.

Explain a cron expression (5 fields, names like mon-fri, or @daily) in plain English and list its next run times in any UTC offset. Use to check schedules before deploying jobs.

OHLCV candles for a crypto pair from Coinbase Exchange at 1m, 5m, 15m, 1h, 6h or 1d, up to 300, oldest first. Use for charting, technical indicators (RSI, moving averages) and backtests.

Full profile of a coin by symbol or CoinGecko id: description, website, X/Twitter, GitHub, categories, contract addresses per chain, price, market cap, FDV, volume, 24h/7d/30d/1y change, all-time high/low and supply. Use for token research or due diligence.

Convert an amount of any token (BTC, ETH, SOL, symbols or chain:address) into one or more fiat currencies (USD, EUR, GBP, AED, JPY, ~35 more), with the price per unit each way. Use for invoices, accounting or pricing in local currency.

Centralized crypto exchanges ranked by trust score or adjusted 24h volume: name, volume, markets, supported fiat currencies, website and notices such as hacks. Use to pick a venue or check one.

The Crypto Fear & Greed Index (0 extreme fear to 100 extreme greed) for today, with up to a year of daily history. Use as a market-sentiment signal for trading, newsletters or answering how the crypto market feels.

Recent forced liquidations of a coin's USDT perpetual on OKX: time, side, price, size in coin and USD, with totals of longs vs shorts liquidated and the largest ones.

Total crypto market capitalisation, 24h volume, Bitcoin dominance, 24h change and distance from the all-time high, in one call. Use for a market summary or risk-on/risk-off context.

Latest crypto news from CoinDesk, Cointelegraph, Decrypt and The Block in one feed, newest first, with title, link, time, summary and tags; filter by keyword or coin (BTC, ETH, SOL, ETF, Base). Use to explain a price move, brief a trader or monitor a project.

Deribit BTC or ETH options: open interest and volume of calls vs puts, put/call ratio, and per expiry the max-pain strike and at-the-money implied volatility, plus the DVOL volatility index.

Daily USD price history of any token (symbol, CoinGecko id or chain:address) for up to 365 days with high, low and % change, or its exact price on a past date. Use for charts, backtests, cost basis or 'what was ETH worth on...' questions.

Current USD price and 24h change for up to 20 crypto tokens per call, by symbol (BTC, ETH, SOL, PEPE), CoinGecko id or chain:contract address (base:0x833589..., ethereum:0x...). Covers thousands of coins and on-chain tokens. Use for portfolio valuation, trading decisions or answering what a token costs now.

Top cryptocurrencies by market cap (up to 250) with price, 1h/24h/7d change, volume, all-time high and supply, optionally within a CoinGecko category (layer-1, meme-token, artificial-intelligence, real-world-assets). Use for market overviews and screeners.

Coins trending on CoinGecko right now (most searched in 24h) with price, 24h change, market cap and volume, plus trending categories. Use to spot what retail is looking at or find narratives gaining attention.

Details of a CVE by id: description, CVSS score, severity and vector, CWE, whether it is in CISA's Known Exploited list, affected products (CPE) and references, from NVD with CVE.org fallback. Use for security triage and patch prioritisation.

Decode EVM transaction input data: looks up the 4-byte function selector and decodes every argument (addresses, amounts, arrays). Use to see what a transaction or signing request will really do.

Supply and borrow APYs across DeFi lending markets (Aave, Compound, Morpho, Spark, Venus...) by token, chain or protocol: net borrow rate, utilisation, TVL, total borrowed and max LTV. Sort by supply_apy, borrow_apy (cheapest first) or tvl. Use to find the best place to lend or borrow.

DeFi protocols by total value locked (DefiLlama): look up one protocol (aave, uniswap, lido) or rank them by chain and category (Lending, Dexs, Liquid Staking, Bridge...) with TVL, 1d/7d change, market cap and chains. Use for DeFi research and protocol comparisons.

DeFi protocols whose TVL grew or shrank most over 1 hour, 1 day or 7 days, filtered by chain, category and minimum TVL, with net flow. Use to see where capital is moving.

Best DeFi yields right now: lending, staking and liquidity pools across all chains and protocols, with APY (base + rewards), 30-day mean APY, TVL, stablecoin flag and impermanent-loss risk. Filter by chain, protocol, token and minimum TVL; sort by APY or TVL. Use to find where to earn on USDC, ETH etc.

English dictionary entry for a word: pronunciation (IPA and audio), parts of speech, definitions with examples, synonyms and antonyms, from Wiktionary. Use for writing, learning or word games.

Detect the language of a text among 55 languages, with probabilities for each candidate and a reliability flag. Use to route messages, pick a translator or tag content.

DEX trading pairs for a token symbol, name or contract address across all chains (DexScreener): price, liquidity, 24h volume, 1h/24h change, buys/sells, FDV, market cap and pair age, deepest liquidity first. Use to price new or small tokens and check if they can be traded.

Trending or newly launched DEX pools on Base, Solana, Ethereum, BSC and more: token, price, FDV, liquidity, 24h volume, price change and buy/sell counts. Use to spot new memecoins and momentum early.

Decentralized exchange volume: total market 24h/7d and the top DEXs (Uniswap, Aerodrome, Raydium...) with 24h, 7d, 30d volume and daily change, for all chains or one chain. Use to compare DEX activity or chain usage.

DNS records of a domain: A, AAAA, MX, TXT, NS, CNAME, SOA and CAA, plus SPF and DNSSEC status, via Cloudflare/Google DNS-over-HTTPS. Use to check where a domain points, its mail servers, verification TXT records or why email or a website is failing.

Lint a Dockerfile for security and best practice: unpinned or latest images, running as root, secrets in ENV/ARG, curl piped to sh, ADD of URLs, apt and pip caches, sudo, chmod 777, missing HEALTHCHECK. Scored.

Check up to 20 domain names at once, or one name across several TLDs (com, ai, io...), for registration via RDAP and DNS: available or taken, registrar and expiry. Use for brainstorming product names and finding free domains.

Registration data of a domain from RDAP, the official WHOIS successor: registrar, creation, update and expiry dates, status codes, nameservers, DNSSEC and registrant organisation/country where public. Says whether an unregistered name looks available. Use for domain research, due diligence or phishing checks.

Recent earthquakes worldwide or within a radius of a point (USGS): magnitude, place, time, depth, tsunami flag, PAGER alert and felt reports, over the last hour, day, week or month. Use for risk monitoring and news.

This week's macroeconomic calendar: CPI, jobs, GDP, PMIs and central-bank decisions with time (UTC), currency, impact, forecast and previous value. Filter by impact (High, Medium, Low) and currency.

Email authentication audit of a domain: MX, SPF (lookup count and policy), DMARC policy and reporting, DKIM on common selectors, MTA-STS, TLS-RPT and BIMI, graded A-F with fixes. Use for deliverability and phishing-risk checks.

Check an email address before sending: syntax, whether the domain exists and has mail servers (MX), disposable/temporary provider, role address (info@, sales@), free provider and typo suggestion (gmial.com -> gmail.com), with a verdict. No mail is sent and the mailbox is not probed.

Encode or decode text: base64, base64url, hex, URL percent-encoding, HTML entities, ROT13, binary, Unicode escapes and punycode, or detect to try decoding unknown input.

Resolve an ENS name (vitalik.eth) or Basename (jesse.base.eth) to its address and profile records (avatar, url, twitter, github, email, description), or an address to its verified primary name. Use before sending funds to a name or to show who owns a wallet.

How much a spender (router, Permit2, protocol) is approved to move from an owner's ERC-20 balance, with an unlimited-approval flag. Use to check approvals before a swap or to audit risky approvals.

Balance of any ERC-20 token (contract address, or USDC/USDT/DAI by symbol) for a wallet or ENS name on Ethereum, Base, Arbitrum, Optimism or Polygon: raw and decimal-adjusted amount, symbol and decimals; up to 20 tokens per call. Use before transfers, swaps or payments.

Facts about an ERC-20 contract read from the chain (Ethereum, Base, Arbitrum, Optimism, Polygon): name, symbol, decimals, total supply, USD price and fully diluted value. Use to verify a token address before trading or integrating it.

Recent ERC-20 Transfer events for a token, a wallet (in and out) or both over the last N blocks (max 5,000), with sender, receiver and amount in token units. Use to confirm incoming payments or watch whale moves.

Estimate the gas a transaction will use (eth_estimateGas) and its cost at the current gas price, with a 20% buffer; fails clearly when the call would revert. Use before signing.

Latest electricity generation by source (MW) for a European country (DE, FR, NL, PL, IT, AT, CH, BE...): wind, solar, nuclear, gas, coal, hydro, batteries, total load, net imports, renewable share and CO2 intensity. Use for energy dashboards, trading context or emissions reporting.

Day-ahead wholesale electricity prices for a European bidding zone (DE-LU, FR, NL, AT, BE, PL, ...) for up to 31 days in local time, with daily min/max/mean and the cheapest and priciest N-hour window. Use when scheduling EV charging, heat pumps or batteries, or asked what power costs tomorrow.

Validate an EU VAT number live against the official EU VIES service, returning valid/invalid and the registered company name and address where the member state shares them. Use for B2B invoicing, reverse charge checks and KYC. Unavailable member states return an error and are not charged.

Latest EU and country economic indicators from Eurostat: HICP inflation, unemployment, GDP growth, consumer confidence, government debt and 10-year bond yields, for EU27, the euro area and 30+ countries.

Event logs a contract emitted (eth_getLogs), filtered by event signature such as Transfer(address,address,uint256) or a topic hash, over a block range (max 5,000 blocks, default last 100). Use to monitor swaps, mints or governance.

An EVM block by number or tag (latest, finalized, safe): hash, parent, time, miner, gas used and limit, base fee, size and its transaction hashes.

Look up any EVM chain by chain ID or name (8453, base, arbitrum): chain ID in decimal and hex, native currency, public RPC URLs, block explorers and testnet flag. Use to configure wallets, RPCs or cross-chain apps.

Current gas fees on Ethereum, Base, Arbitrum, Optimism or Polygon: base fee and slow/standard/fast priority and max fee in gwei plus the cost of a plain transfer. Use before sending a transaction.

Live state of an EVM network: chain ID, latest block number and age, gas price, base and priority fee, block gas use and tx count. Use as a health check before sending transactions.

Status of an EVM transaction by hash: pending, success or failed, block, confirmations, timestamp, from/to, value, gas used, fee (plus L1 fee on Base/Optimism) and ERC-20 token transfers. Searches Ethereum, Base, Arbitrum, Optimism and Polygon if no chain is given. Use to confirm a payment settled.

Balances of a wallet address or ENS name on Ethereum, Base, Arbitrum, Optimism and Polygon in one call: native ETH/POL, USDC, USDT, DAI and any ERC-20 contracts you add, each with USD value and a total. Use to check whether a wallet is funded, value a portfolio or confirm a payment arrived.

Live spot price of a crypto pair on Coinbase and Kraken: bid, ask, last, 24h open/high/low and volume, and the price gap between the two exchanges. Use for an exact executable price or a quick arbitrage check.

Expand a short or tracking link (bit.ly, t.co, lnkd.in...) hop by hop without opening the final page: every redirect, final URL and host, and a clean URL with tracking parameters removed. Use to check links safely.

Check CVEs against CISA's Known Exploited Vulnerabilities catalog or search it by vendor/product: date added, remediation due date, ransomware use, CWE and required action. Use to prioritise patching.

Every link on a web page with its anchor text, split into internal and external, with nofollow flags and the most-linked external domains. Use for SEO audits, crawling, backlink research or broken-link checks.

Official FDA label of a drug by brand or generic name: indications, dosage, warnings, boxed warning, contraindications, adverse reactions, interactions, pharmacologic class, manufacturer and NDC codes.

Recent FDA recall and enforcement reports for food, drugs or medical devices: firm, product, reason, class I/II/III, status, quantity and distribution, filterable by keyword, class and age.

Search US federal rules, proposed rules, notices and presidential documents: title, agency, dates, comment deadline, docket, abstract and links. Use to track US regulation on a topic.

Detect a file's real format from its first bytes (magic numbers), given as base64 or hex: MIME type, extension and a warning when it does not match the file name. Use to validate uploads.

Food product details from its EAN/UPC barcode: name, brand, quantity, ingredients, allergens, Nutri-Score, NOVA processing group, Eco-Score and nutrients per 100 g, from Open Food Facts. Use for nutrition apps, shopping assistants or allergy checks.

Any FRED economic time series by id or alias: CPI, core PCE, unemployment, payrolls, GDP, fed funds, SOFR, Treasury yields, mortgage rates, M2, oil, VIX, jobless claims... Latest value, change, 1-year % change and history. Use for macro analysis and economic questions.

Search openly licensed images (Creative Commons and public domain) from Flickr, Wikimedia and museums via Openverse: image URL, size, creator, license and a ready-made attribution line. Filter to commercially usable images. Use to illustrate posts, slides or sites legally.

A coin's perpetual funding rate and open interest on OKX, Bitget, Gate, Kraken Futures and Hyperliquid, annualized side by side, with the widest long/short funding spread. Use for funding arbitrage, crowding and sentiment checks.

Deribit BTC or ETH futures term structure: each expiry's price, premium over the index and annualized basis, plus the perpetual's premium. Use for cash-and-carry yields or sentiment.

FX carry trade ranking from central-bank policy rates: currency pairs ranked by interest-rate differential, optionally for one funding currency such as JPY or CHF.

Official ECB reference exchange rates for about 35 currencies (USD, EUR, GBP, JPY, CNY, INR, AED, SAR and more) for today or any date since 1999, from any base currency, with optional amount conversion. Use to convert prices, invoices or salaries between currencies.

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.

Hourly GPU rental prices on RunPod (secure and community cloud, on-demand and spot) for H100, H200, B200, A100, L40S, RTX 4090/5090 and more, cheapest first. Use to budget training or inference.

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.

MD5, SHA-1, SHA-256, SHA-512, SHA3-256, Keccak-256, BLAKE2b and CRC32 of a text or hex/base64 bytes, plus base64 and hex encodings, in one call. Use for integrity checks, IDs, signatures and Ethereum selectors.

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.

Search Hugging Face models by name and task (text-generation, image-text-to-text, automatic-speech-recognition...), sorted by trending, downloads, likes or newest, with license and links.

A Hyperliquid wallet's open perp positions (side, size, entry, value, unrealized PnL, leverage, liquidation price, funding), margin summary and spot balances. Use to track whales or your own account.

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.