Name: Euclid
Author: euclid

Что умеет

Calculate: Deterministic calculator for mathematical expressions. Arithmetic, percentages, exponents, roots, trigonometry, logarithms, factorials, and any expression with a numerical answer.

Convert: Converts between units of measurement. Supports length, weight, volume, temperature, area, speed, time, data (bytes/bits), and 100+ other units.

Statistics: Descriptive and inferential statistics. Mean, median, mode, std dev, variance, percentile, z-test, t-test, chi-squared, confidence intervals, correlation, and normal distribution functions

AI models do not calculate. They predict the most probable next token. When the token is a number, it is often close, and sometimes wrong. The error compounds downstream.

Euclid is a deterministic computation service for AI agents. It provides 10 tools via a single MCP connection:

calculate: arithmetic, percentages, exponents, trig, logarithms
convert: unit conversions across 1,000+ unit pairs
statistics: mean, median, mode, variance, standard deviation, percentile
datetime: date differences, business days, age, timezone conversion
finance: loan payments, NPV, IRR, CAGR, compound interest
regex: pattern testing and extraction
color: hex/RGB/HSL conversion, contrast ratios, WCAG compliance
encode: base64, hex, URL, SHA-256, MD5, JWT decoding
validate: email, URL, phone, ISBN, credit card, UUID
geo: distance, bearing, bounding boxes, coordinate conversion

Free tier: 1,000 lifetime computations. No credit card required. Paid: $1.00 per 10,000 computations.

Same input. Same output. Guaranteed.

Euclid

Что умеет

Какие данные видит

Нужен ли аккаунт

calculate	Deterministic calculator for mathematical expressions. Arithmetic, percentages, exponents, roots, trigonometry, logarithms, factorials, and any expression with a numerical answer.
convert	Converts between units of measurement. Supports length, weight, volume, temperature, area, speed, time, data (bytes/bits), and 100+ other units.
statistics	Descriptive and inferential statistics. Mean, median, mode, std dev, variance, percentile, z-test, t-test, chi-squared, confidence intervals, correlation, and normal distribution functions.
datetime	Calendar and date arithmetic. Date differences, add/subtract time, age, business days, day of week, quarter, leap year, days in month.
encode	Encoding, decoding, hashing, and JWT inspection. Base64, hex, URL, HTML encoding/decoding. SHA-256/512, SHA-1, MD5 hashing. HMAC signatures. JWT decode.
finance	Financial calculations with arbitrary-precision decimal arithmetic. Loan payments, amortization, present/future value, NPV, IRR, CAGR, margin/markup, compound interest.
geo	Geospatial calculations. Distance (Haversine/Vincenty), bearing, midpoint, destination point, bounding boxes, polygon area, point-in-polygon, coordinate conversions (DMS, UTM).
color	Color space conversions, WCAG accessibility checks, color manipulation, and palette generation. Supports hex, RGB, HSL, HSV, CMYK, Lab, OKLab, OKLCH.
regex	Safe regex execution via RE2. Test, match, matchAll, replace, split, and escape operations. Linear-time guarantees, no ReDoS.
validate	Format validation for structured identifiers. Email (RFC 5322), URL (WHATWG), UUID (RFC 9562), credit card (Luhn), IPv4, IPv6, IBAN (mod-97).