All projects matching “calculators”

Compile 1-8 documents into a token-budgeted context pack, then measure exact retention of 1-32 caller-labelled evidence spans. Returns the pack, source-linked passages, input and output hashes, original and compiled token estimates, tokensSaved, source coverage, and requiredEvidenceRetentionPercent. Retention is exact span matching only: not accuracy, answer quality, verification, or hallucination

Compute network details of a CIDR block — network & broadcast address, usable host range, total and usable address counts. Works for IPv4 and IPv6 (counts returned as strings for large IPv6 blocks). Honours RFC 3021 for /31.

Calculate gross/net rental yield, income, operating costs and simple payback in OMR. Calculations only. Paid per call via x402; no API key required.

VAT (IVA) rates for 17 Latin American countries, including Argentina, Chile, Colombia, Mexico, Peru (IGV) and the Dominican Republic (ITBIS): standard and reduced rates, plus net-to-gross or gross-to-net calculation. Reviewed dataset with source and review date; Brazil is excluded because it has no single rate. Use when pricing, quoting or invoicing in Latin America and you need the local VAT rate

Business day calculator for SLAs, invoice due dates, shipping and legal deadlines: counts working days between two dates, skipping weekends and national public holidays (ISO country code).

Japanese business-day calculator: check if a date is a business day, add N business days to a date, or count business days in a range. Accounts for weekends and Japanese national holidays; optional Saturday and year-end/new-year rules.

Multiplies per-contact transmission probability, effective contacts per day and infectious duration to obtain a simple basic reproduction number, then applies a susceptible fraction for an effective number. It is a classroom homogeneous-mixing calculation, not an outbreak estimate, fitted epidemiological model or public-health forecast.

Know what drove your returns. Deterministic, no-LLM portfolio attribution: send position start/end values, dated cash flows, and a reporting period; get Modified Dietz and XIRR returns, alpha against BTC, ETH, stETH, or a benchmark you supply prices for, plus per-position contribution. Caller-declared data-quality flags, a calculation hash, and an optional EIP-191 signature support transparent rep

Request a real USDC loan for an AI agent on Base mainnet from RSoft Bank: a real lender, not a calculator. Call it when your agent needs capital. The agent signs an EIP-712 LoanRequest (wallet, amount, nonce, deadline); the bank underwrites it and disburses USDC on-chain to the agent wallet. No sponsor: 2 USDC flat; with one: from 5 USDC, growing per repaid loan. Free pre-check first: GET /api/pre

Convert an amount between currencies and get the exchange rate. Converts between 30+ currencies (USD, EUR, GBP, JPY and more) using daily European Central Bank reference rates with cross-rate calculation, returning the converted amount, the rate and the rate date. Fast currency converter and FX rate lookup for pricing, invoicing and reporting (informational use).

UK Stamp Duty Land Tax (SDLT) calculator with first-time buyer relief and surcharges.

Generate 1 to 1000 uniformly distributed random integers between min and max, inclusive. Both bounds are required; min must not exceed max. Repeated values are possible. Uses the server OS CSPRNG. Returns consumed bytes for reproducible calculation, not proof of their origin. Price: 0.007 USDC per request, including the bounded batch.

Compounds supplied rent and expense growth assumptions, applies vacancy and collection loss, subtracts operating expenses and capital reserve, and divides net operating income by a caller-supplied property value. This is scenario arithmetic, not a valuation, market forecast, investment recommendation, tax calculation or guarantee of income.

Converts area, sampling depth, bulk density and initial/final organic-carbon mass fractions into stock estimates and a gross CO2-equivalent difference. This is a simple stock-difference calculation; it does not establish additionality, permanence, leakage, sampling representativeness, credit eligibility or verified carbon removal.

Calculates location- or market-based electricity emissions from a published grid factor. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. This is neither legal advice nor customs advice.

Executes state-override simulation of $1k, $10k, and $50k swap orders on Base Mainnet, calculating exact slippage, gas overhead, and MEV frontrun exposure.

High-precision Islamic prayer times (fajr, sunrise, dhuhr, asr, maghrib, isha) plus qibla direction for any coordinates and date. Pure astronomical computation (adhan library), 11 calculation methods including Umm al-Qura, Dubai, Egyptian, MWL. Ideal for agents building Muslim-facing schedules, reminders, or travel plans.

High-precision Islamic prayer times (fajr, sunrise, dhuhr, asr, maghrib, isha) plus qibla direction for any coordinates and date. Pure astronomical computation (adhan library), 11 calculation methods including Umm al-Qura, Dubai, Egyptian, MWL. Ideal for agents building Muslim-facing schedules, reminders, or travel plans.

Cron next-run calculator — generate future times for bounded five-field POSIX cron schedules in IANA timezones with explicit daylight-saving (DST) policies.

PKCS#10 certificate signing request (CSR) inspector — parse requested identities and public-key metadata, calculate a fingerprint, and check the included self-signature without CA approval claims.

Calculates 9 TTM financial ratios (P/E, P/OCF, P/FCF, P/B, EV/EBITDA, ROIC %, Debt/Equity, Current Ratio, Interest Coverage) directly from official SEC EDGAR XBRL filings with accession audit trails. Disclosures: Financial institutions and IFRS ADRs return null for unclassified balance sheet or missing US-GAAP taxonomy tags.

Tell whether a given date is a Japanese business day. Japanese national holidays and business-day calculations derived from the Cabinet Office official CSV. Returns holidays for a given year, plus business-day arithmetic used by invoicing, logistics and HR systems in Japan.

Calculate kg/l unit prices for up to 50 rows of price_eur plus quantity text or EAN. Example: items [{price_eur:1.29,quantity:"500 g"}]. Errors are reported per row; kg and litre groups are not comparable. Empty batches with no usable line are not charged. No observed store offer.

Disability insurance and income-protection calculator — how much coverage to buy, key policy features (own-occupation vs any-occupation), carrier recommendations, and a country-aware estimated premium from public benchmarks. For insurance and personal-finance agents, any country.

Calculate required margin for collateral

Design or analyze ideal first-order RC low-pass/high-pass filters; calculate cutoff, attenuation, phase, settling and PWM fundamental attenuation

Up to 25 cross-border business-day deadline calculations in one paid x402 request.

Short-text nonstreaming Claude inference. Solana USDC x402 exact quote calculated before inference (not actual-use settlement).

Spot FX: one ECB reference conversion, plain text. Conversion is calculated from the ECB reference rate (amount × rate). Indicative only. Not a trade quote, not for settlement. Informational only / not for transaction use. Source: ECB statistics. These reference rates are free at https://www.ecb.europa.eu (and via Frankfurter). Not sold or endorsed by the ECB.

Spot FX: one ECB reference conversion, plain text. Conversion is calculated from the ECB reference rate (amount × rate). Indicative only. Not a trade quote, not for settlement. Informational only / not for transaction use. Source: ECB statistics. These reference rates are free at https://www.ecb.europa.eu (and via Frankfurter). Not sold or endorsed by the ECB.