Back to search
100
MCP live MCP 2025-11-25 streamable-http

SmartTools

io.github.9thshini/smart-tools

70+ free calculators & converters as MCP tools; each result links to its source page.

Watch this dependency

Get before/after evidence when observed tools, schemas, authentication access, availability or the endpoint changes.

Inspect evidence and set up a watch Share public evidence report
Uptime
100.0%
5 direct probes · 30d
Response
221ms
last probe
Tools
74
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://smart-tools.xyz/mcp
Score: 100/100
Handshake verified by our own probe.
why this score
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
74 tools, 0 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
74 items in total; 3 or more earns these points.
pass Describes itself 10/10
85 characters; more than 30 earns these points.

Tools · 74

length_converter

Convert a value between length units. Units: km (Kilometer), m (Meter), cm (Centimeter), mm (Millimeter), µm (Micrometer), mi (Mile), yd (Yard), ft (Foot), in (Inch), nmi (Nautical mile). Calculation …

weight_converter

Convert a value between weight units. Units: t (Tonne), kg (Kilogram), g (Gram), mg (Milligram), lb (Pound), oz (Ounce), st (Stone). Calculation runs on smart-tools.xyz.

temperature_converter

Convert a value between temperature units. Units: °C (Celsius), °F (Fahrenheit), K (Kelvin), °R (Rankine). Calculation runs on smart-tools.xyz.

area_converter

Convert a value between area units. Units: km² (Square kilometer), m² (Square meter), cm² (Square centimeter), mm² (Square millimeter), ha (Hectare), ac (Acre), mi² (Square mile), ft² (Square foot), y…

volume_converter

Convert a value between volume units. Units: m³ (Cubic meter), L (Liter), mL (Milliliter), gal_us (US gallon), gal_uk (UK gallon), qt (US quart), pt_us (US pint), pt_uk (UK pint), cup (US cup), fl oz …

speed_converter

Convert a value between speed units. Units: m/s (Meter per second), km/h (Kilometer per hour), mph (Mile per hour), ft/s (Foot per second), kn (Knot). Calculation runs on smart-tools.xyz.

pressure_converter

Convert a value between pressure units. Units: Pa (Pascal), kPa (Kilopascal), hPa (Hectopascal), bar (Bar), atm (Atmosphere), psi (Pound per sq inch), mmHg (Millimeter of mercury), inHg (Inch of mercu…

angle_converter

Convert a value between angle units. Units: ° (Degree), rad (Radian), grad (Gradian), mrad (Milliradian), rev (Turn), ′ (Arcminute), ″ (Arcsecond). Calculation runs on smart-tools.xyz.

energy_converter

Convert a value between energy units. Units: J (Joule), kJ (Kilojoule), cal (Calorie), kcal (Kilocalorie), Wh (Watt-hour), kWh (Kilowatt-hour), BTU (British thermal unit), ft·lb (Foot-pound), eV (Elec…

data_converter

Convert a value between data units. Units: bit (Bit), B (Byte), kB (Kilobyte), MB (Megabyte), GB (Gigabyte), TB (Terabyte), KiB (Kibibyte), MiB (Mebibyte), GiB (Gibibyte), TiB (Tebibyte). Calculation …

time_converter

Convert a value between time units. Units: µs (Microsecond), ms (Millisecond), s (Second), min (Minute), h (Hour), d (Day), wk (Week), mo (Month), yr (Year). Calculation runs on smart-tools.xyz.

loan_calculator

Monthly payment, total repayment and interest for an amortising loan (annuity formula). Runs on smart-tools.xyz.

mortgage_calculator

Monthly mortgage payment including optional down payment, property tax and insurance (PITI). Runs on smart-tools.xyz.

compound_interest_calculator

Future balance and interest earned: A = P(1 + r/n)^(nt). Runs on smart-tools.xyz.

vat_calculator

Add VAT to a net amount or remove it from a gross amount. Runs on smart-tools.xyz.

tip_calculator

Tip amount, total and per-person split for a bill. Runs on smart-tools.xyz.

discount_calculator

Final price after one or two successive discounts, plus amount saved. Runs on smart-tools.xyz.

percentage_calculator

Percentage operations. operation=percent_of: a% of b. operation=is_what_percent: a is what % of b. operation=change: percent change from a to b. Runs on smart-tools.xyz.

salary_calculator

Convert pay between hourly, daily, weekly, biweekly, monthly and annual. Runs on smart-tools.xyz.

margin_calculator

Profit, margin (share of price) and markup (share of cost) from cost and selling price. Runs on smart-tools.xyz.

unit_price_calculator

Compare price per unit of two packs and report which is cheaper. Runs on smart-tools.xyz.

fuel_cost_calculator

Fuel needed and trip cost. system=metric: distance km, consumption L/100km. system=imperial: distance miles, consumption mpg. Runs on smart-tools.xyz.

electricity_cost_calculator

Running cost of an appliance per day, month and year from its wattage. Runs on smart-tools.xyz.

bmi_calculator

Body Mass Index and category. system=metric: weight_kg, height_cm. system=imperial: weight_lb, height_ft (+height_in). Runs on smart-tools.xyz.

bmr_calculator

Basal metabolic rate (Mifflin–St Jeor) and daily calories (TDEE = BMR × activity). Runs on smart-tools.xyz.

body_fat_calculator

Body fat percentage by the US Navy (Hodgdon–Beckett) method, metric measurements in cm. Females require hip_cm. Runs on smart-tools.xyz.

ideal_weight_calculator

Healthy weight range (BMI 18.5–24.9) plus Devine, Robinson, Miller and Hamwi formula estimates, from height in cm. Runs on smart-tools.xyz.

due_date_calculator

Estimated due date by Naegele's rule (+280 days from last period, adjusted for cycle length). Runs on smart-tools.xyz.

age_calculator

Exact age in years, months and days between a birth date and a reference date (default: today). Runs on smart-tools.xyz.

date_difference_calculator

Difference between two dates: calendar years/months/days, total days, weeks and weekday count. Runs on smart-tools.xyz.

hours_calculator

Time worked between two clock times (handles overnight), minus a break, with optional pay. Times as HH:MM. Runs on smart-tools.xyz.

aspect_ratio_calculator

Simplify a width×height ratio and scale to a new width or height. Runs on smart-tools.xyz.

standard_deviation_calculator

Mean, variance and standard deviation (both sample and population) of a list of numbers. Runs on smart-tools.xyz.

fraction_calculator

Exact arithmetic on two fractions (a/b op c/d), reduced to lowest terms. op is one of + - * /. Runs on smart-tools.xyz.

triangle_calculator

Solve a triangle. mode=sss: three sides a,b,c. mode=sas: two sides a,b and the included angle angle_c (degrees). Returns sides, angles (degrees), area and perimeter. Runs on smart-tools.xyz.

pace_calculator

Running pace per km and per mile, plus speed, from distance and time. Runs on smart-tools.xyz.

subnet_calculator

IPv4 subnet details: network, broadcast, mask, wildcard, host range and count for an IP and prefix. Runs on smart-tools.xyz.

color_converter

Convert a color between HEX, RGB and HSL. Accepts #hex, rgb()/rgba(), hsl()/hsla(). Runs on smart-tools.xyz.

gpa_calculator

Weighted grade point average from letter grades (US 4.0 scale, +/-) or numeric grade points and credit hours. Runs on smart-tools.xyz.

scientific_calculator

Evaluate a math expression with correct order of operations: + - * / % ^, parentheses, and functions (sqrt, sin, cos, tan, ln, log, exp, min, max, factorial via !). Constants pi, e. Angles in radians.…

height_converter

Convert a height between centimetres and feet/inches. Give cm, or feet (with optional inches). One inch = 2.54 cm exactly. Runs on smart-tools.xyz.

base64

Encode text to Base64 or decode Base64 back to text, UTF-8 safe, with an optional URL-safe alphabet. Runs on smart-tools.xyz.

case_converter

Convert text to UPPER, lower, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case or CONSTANT_CASE. Runs on smart-tools.xyz.

html_entities

Escape the five special HTML characters (optionally all non-ASCII) or decode named and numeric HTML entities back to text. Runs on smart-tools.xyz.

url_encoder

Percent-encode or decode a URL. mode=component escapes /?&= (for a value); mode=full keeps them (for a whole address). Runs on smart-tools.xyz.

slug_generator

Turn text (incl. Ukrainian and accented Latin) into a clean URL slug; each non-empty line becomes its own slug. Runs on smart-tools.xyz.

remove_duplicates

Remove duplicate lines, with optional trim, case-insensitive matching, sorting or keeping only the duplicated lines. Runs on smart-tools.xyz.

text_counter

Count characters (with and without spaces), words, lines, paragraphs and estimated reading time. Runs on smart-tools.xyz.

text_diff

Line-level diff of two texts (LCS): counts of added/removed lines plus a marked-up line list. Runs on smart-tools.xyz.

lorem_ipsum

Generate placeholder lorem ipsum text by paragraphs, sentences or words. Runs on smart-tools.xyz.

number_base

Convert an integer between bases 2–36 (binary, octal, decimal, hex and more), exact for 64-bit values via BigInt. Runs on smart-tools.xyz.

timestamp_converter

Convert between a Unix timestamp and an ISO 8601 date (UTC). direction=to_date: epoch → date; to_timestamp: date → epoch. Runs on smart-tools.xyz.

transliteration

Transliterate Ukrainian Cyrillic to Latin by the official KMU #55 passport standard. Runs on smart-tools.xyz.

uuid_generator

Generate one or more random version 4 (RFC 4122) UUIDs. Runs on smart-tools.xyz.

hash_generator

Hash text with SHA-1, SHA-256, SHA-384 or SHA-512 (hex, over UTF-8 bytes). MD5 is not supported. Runs on smart-tools.xyz.

jwt_decoder

Decode a JSON Web Token's header and payload (base64url). Does NOT verify the signature — that needs the secret/key. Runs on smart-tools.xyz.

cron_parser

Parse a 5-field cron expression (minute hour day-of-month month day-of-week) into a plain-English description. Runs on smart-tools.xyz.

regex_tester

Test a JavaScript regular expression against text and return every match with its captured groups. Runs on smart-tools.xyz.

layout_fixer

Fix text typed in the wrong keyboard layout between English QWERTY and Ukrainian ЙЦУКЕН. Runs on smart-tools.xyz.

wcag_contrast_checker

Compute the WCAG 2.x contrast ratio between two hex colors and whether it passes AA/AAA for normal and large text. Runs on smart-tools.xyz.

csv_to_json

Parse CSV/TSV text (auto-detecting tab, semicolon or comma delimiter) with a header row into an array of JSON objects. Runs on smart-tools.xyz.

csv_to_sql

Turn CSV/TSV rows into SQL INSERT statements with standard double-quoted identifiers and escaped values. Runs on smart-tools.xyz.

table_to_csv

Convert a pasted HTML <table> or delimited (tab/semicolon/comma) table into clean CSV. Runs on smart-tools.xyz.

markdown_table

Build a padded GitHub-flavored Markdown table from CSV/TSV text (first row is the header). Runs on smart-tools.xyz.

json_formatter

Validate and pretty-print or minify JSON, reporting the line and column on a parse error. Runs on smart-tools.xyz.

gitignore_generator

Build a .gitignore from curated templates for Node, Python, Go, Rust, macOS, VS Code and more. Runs on smart-tools.xyz.

gradient_generator

Build a CSS linear or radial gradient background declaration from two or more colors. Runs on smart-tools.xyz.

htaccess_generator

Generate Apache .htaccess rules: force HTTPS, www redirect, caching, gzip, hotlink protection and more. Runs on smart-tools.xyz.

meta_tag_generator

Generate SEO, Open Graph and Twitter Card HTML meta tags for a page. Runs on smart-tools.xyz.

random_number_generator

Generate cryptographically random integers in a range, optionally unique and sorted. Runs on smart-tools.xyz.

robots_txt_generator

Build a robots.txt: allow or block all, custom disallow paths, AI-crawler blocking, crawl-delay and sitemap. Runs on smart-tools.xyz.

utm_builder

Append encoded UTM campaign parameters to a URL, preserving any existing query and fragment. Runs on smart-tools.xyz.

file_hash

Compute a SHA-1/256/384/512 hex checksum of provided text or base64 bytes. Runs on smart-tools.xyz.

password_generator

Generate a cryptographically strong random password with configurable length and character sets. Runs on smart-tools.xyz.

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "smarttools": {
      "url": "https://smart-tools.xyz/mcp",
      "transport": "streamable-http"
    }
  }
}