Use this when you want the Robinhood Chain stock tokens whose on-chain pools trade furthest from their Chainlink feed. Price: $0.006 in USDC on Base or Solana, or $0.02 in USDG or $SWOGE on Robinhood Chain (tool price + settlement cost, minimum $0.02).

Stablecoin supply: circulating and 1d/7d/30d net change per stablecoin and in total (proxy for fresh on-chain dollar liquidity), plus depegs over 50 bps. Market data and analytics only — not investment advice.

Unit conversion for length, mass, volume, and temperature using exact conversion factors (temperature uses the correct affine formulas, not simple multiplication).

15-year vs 30-year mortgage comparison calculator. Computes monthly payment and total interest for both loan terms on the same purchase price and down payment, and reports the payment and lifetime-interest tradeoff between them.

Solves a system of linear equations (Ax = b) using the ml-matrix library's LU decomposition (LuDecomposition), with a near-singularity guard beyond the library's exact-singular check, for systems up to 20x20.

Descriptive statistics summary (mean, median, variance, standard deviation, and 25th/75th/90th percentiles via linear interpolation, matching R and numpy's default "type=7" method) over a numeric array of up to 10,000 elements.

Crypto price in any ECB currency (EUR, GBP, JPY, CHF...): on-chain USD price (Chainlink or Uniswap v3) converted with ECB reference rates.

URL encoder API. Percent-encodes text for safe use in a URL query string or path segment, handling reserved-character rules LLMs often get wrong by hand.

Compares two semantic version strings and reports which is greater, lesser, or equal, using the standard semver comparison rules.

Tesla savings calculator. Compares annual electricity cost for a Tesla against annual gas cost for a comparable gas vehicle, accounting for free-charging usage, and computes break-even years, cost per full charge, and gas-price-equivalent effective MPG.

Upwork freelancer fee calculator. Applies a documented tiered marginal service-fee schedule (20%/10%/5% at $500/$10,000 cumulative per-client lifetime billing thresholds) to compute take-home pay on an invoice, correctly splitting fees across a tier boundary like a tax bracket. Platform fee policies can change; verify current rates before relying on this for financial decisions.

Use when you have a Hidalgo County, Texas street address and need its parcel record before an offer, a loan or a site visit: parcel id, property class, acres, year built, building size, last deed, values, taxing units and the owner if it is a company or public body (people are withheld). /api/v1/parcel/match checks for free first; a miss is a 404 and is not charged. Example: "What is the parcel id, building size and market value of 800 S 10th St, McAllen?"

Use to vet a developer, owner, architecture firm or trade contractor in the Rio Grande Valley, Texas: projects filed since late 2024 (count, total and largest cost, cities, dates, newest projects) and state trade licenses held by the business (A/C, electrical, sign, elevator), current or expired. Pass part of the name (3+ characters). No match is a free 404. Example: "How many projects has this developer filed in the Valley since 2024, and how large was the biggest one?"

Use to size competing or neighboring construction around one Rio Grande Valley address before you buy, lend, lease or build there: count, summed filed cost and each commercial project within radius_mi (default 1, max 5), nearest first. Hidalgo, Cameron, Starr and Willacy counties; about 68% of filings have a map point. An address we cannot place is a free 404. Example: "How many commercial projects were filed within two miles of 1201 E Capote Central Ave, Pharr, and what are they worth?"

Matrix operations: multiply, transpose, determinant, and invert, for matrices up to 20x20. Uses the ml-matrix library's LU decomposition (LuDecomposition) for determinant and inversion, with a numerical near-singularity guard beyond the library's exact-singular check.

Generates a QR code for the given text, returned as a base64-encoded PNG data URL, computed entirely locally with no external service call.

Loan payment calculator. Computes the fixed monthly payment for a standard amortizing loan and returns the full month-by-month principal/interest/balance schedule — exact amortization math an LLM cannot reliably compute by hand for hundreds of periods.

Savings rate calculator. Divides the gap between monthly take-home income and spending by income to produce your personal savings rate as a percentage.

Transits: Transits to a natal chart at a moment, and exact hit times over a window of up to a year.

Use to track new housing permits month by month in Rio Grande Valley cities and county areas (Hidalgo, Cameron, Starr, Willacy counties): units and buildings by structure type and valuation since January 2024, with year-to-date totals. Filter by place, county, from and to (YYYY-MM). Covers cities that publish no weekly permits. Example: "How many single-family homes did Brownsville permit each month this year?"