7,300 resources accept payment on this network. eip155:137
Estimate the LLM token count of text with a low to high range, a breakdown by words, numbers, symbols and CJK, and whether it fits a given context window
Split text into sentence, paragraph or fixed-size chunks for RAG with optional overlap, character offsets and a rough token estimate per chunk
Find the nearest active NOAA weather stations to a coordinate - GHCN station ID, name, distance, record start and latest data date, ready for history queries
Historical daily or monthly weather for a NOAA station - high, low and mean temperature, rain, snow, wettest day, hottest day and heating and cooling degree days
Molar mass of a chemical formula with brackets and hydrates - g/mol, Hill formula, atom counts, mass percent per element and moles from a sample in grams
Chemical element facts by symbol, name or atomic number - weight, group, electron configuration, electronegativity, melting and boiling point, density
Accurate WGS-84 distance and bearings between two coordinates with Vincenty, or the destination point from a start, bearing and distance
Balance a chemical equation with the smallest whole-number coefficients, with an atom-by-atom check and the mass balance for reactants and products
Pilot reports near an airport - turbulence and icing intensity, flight level, aircraft type, cloud, wind and temperature, with counts of significant reports
Active US SIGMETs, AIRMETs and graphical AIRMETs by hazard or covering a point - turbulence, icing, convective, IFR, mountain obscuration, with altitudes
Search NASA Earth science datasets in the CMR - title, short name, version, data center, platforms, time range, spatial extent and landing page
Look up legal entities in the GLEIF LEI index by company name or LEI - status, jurisdiction, legal form, addresses, registration and renewal dates
Bank Negara Malaysia ringgit exchange rates - interbank buying, selling and middle rates per currency with the unit, session and date
Bayes calculator for a diagnostic test - positive and negative predictive value, likelihood ratios and a confusion matrix from prevalence, sensitivity and specificity
Julian date, modified Julian date, day number, Greenwich mean sidereal time and local sidereal time for a timestamp and longitude
Check whether a crawler may fetch a path under a robots.txt per RFC 9309 - matched group and rule, crawl delay and sitemaps, for Googlebot, GPTBot or any agent
UK Office for National Statistics series - CPI, CPIH and RPI inflation, unemployment, employment rate, earnings and GDP growth, or any series by ID, with release dates
Deutsche Bundesbank time series - 10-year Bund yield, euro reference FX rates by currency, or any dataflow and key, with latest value, change and history
Payoff of any option strategy from its legs - max profit, max loss, breakeven prices, net debit or credit and a payoff table at expiry for spreads and condors
Dividend discount model - intrinsic value per share with Gordon growth or two stages, upside against the market price, implied growth and dividend yield
Impermanent loss for a Uniswap v2 or v3 position: LP value against simply holding, the fee income needed to break even, and whether fees cover the loss.
Perpetual futures liquidation price for a long or short at any leverage, with the percent move to liquidation, margin, position size and loss at liquidation.
Position size from account equity, risk percent, entry and stop: units, notional, leverage needed and target prices at chosen R multiples.
Risk statistics for a price or return series: Sharpe, Sortino, Calmar, max drawdown, historical and parametric value at risk, CVaR, volatility and win rate.
