MCP server

SmartTools

io.github.9thShini/smart-tools

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Website

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

74

Token cost

About 14,832 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http smart-tools https://smart-tools.xyz/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.smart-tools]
url = "https://smart-tools.xyz/mcp"

Gemini CLI

{"mcpServers":{"smart-tools":{"httpUrl":"https://smart-tools.xyz/mcp"}}}

Cursor

{"mcpServers":{"smart-tools":{"url":"https://smart-tools.xyz/mcp"}}}

VS Code

{"servers":{"smart-tools":{"type":"http","url":"https://smart-tools.xyz/mcp"}}}

Antigravity

agy mcp add smart-tools https://smart-tools.xyz/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"smart-tools","server_url":"https://smart-tools.xyz/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"smart-tools","server_url":"https://smart-tools.xyz/mcp"}

Tools

• age_calculator ~160 tokens
  Exact age in years, months and days between a birth date and a reference date (default: today). Runs on smart-tools.xyz.
• angle_converter ~203 tokens
  Convert a value between angle units. Units: ° (Degree), rad (Radian), grad (Gradian), mrad (Milliradian), rev (Turn), ′ (Arcminute), ″ (Arcsecond). Calculation runs on smart-tools.xyz.
• area_converter ~239 tokens
  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), yd² (Square yard), in² (Square inch). Calculation runs on smart-tools.xyz.
• aspect_ratio_calculator ~210 tokens
  Simplify a width×height ratio and scale to a new width or height. Runs on smart-tools.xyz.
• base64 ~195 tokens
  Encode text to Base64 or decode Base64 back to text, UTF-8 safe, with an optional URL-safe alphabet. Runs on smart-tools.xyz.
• bmi_calculator ~267 tokens
  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 ~243 tokens
  Basal metabolic rate (Mifflin–St Jeor) and daily calories (TDEE = BMR × activity). Runs on smart-tools.xyz.
• body_fat_calculator ~243 tokens
  Body fat percentage by the US Navy (Hodgdon–Beckett) method, metric measurements in cm. Females require hip_cm. Runs on smart-tools.xyz.
• case_converter ~175 tokens
  Convert text to UPPER, lower, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case or CONSTANT_CASE. Runs on smart-tools.xyz.
• color_converter ~138 tokens
  Convert a color between HEX, RGB and HSL. Accepts #hex, rgb()/rgba(), hsl()/hsla(). Runs on smart-tools.xyz.
• compound_interest_calculator ~207 tokens
  Future balance and interest earned: A = P(1 + r/n)^(nt). Runs on smart-tools.xyz.
• cron_parser ~152 tokens
  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.
• csv_to_json ~180 tokens
  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 ~286 tokens
  Turn CSV/TSV rows into SQL INSERT statements with standard double-quoted identifiers and escaped values. Runs on smart-tools.xyz.
• data_converter ~223 tokens
  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 runs on smart-tools.xyz.
• date_difference_calculator ~159 tokens
  Difference between two dates: calendar years/months/days, total days, weeks and weekday count. Runs on smart-tools.xyz.
• discount_calculator ~189 tokens
  Final price after one or two successive discounts, plus amount saved. Runs on smart-tools.xyz.
• due_date_calculator ~172 tokens
  Estimated due date by Naegele's rule (+280 days from last period, adjusted for cycle length). Runs on smart-tools.xyz.
• electricity_cost_calculator ~190 tokens
  Running cost of an appliance per day, month and year from its wattage. Runs on smart-tools.xyz.
• energy_converter ~229 tokens
  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 (Electronvolt). Calculation runs on smart-tools.xyz.
• file_hash ~190 tokens
  Compute a SHA-1/256/384/512 hex checksum of provided text or base64 bytes. Runs on smart-tools.xyz.
• fraction_calculator ~243 tokens
  Exact arithmetic on two fractions (a/b op c/d), reduced to lowest terms. op is one of + - * /. Runs on smart-tools.xyz.
• fuel_cost_calculator ~232 tokens
  Fuel needed and trip cost. system=metric: distance km, consumption L/100km. system=imperial: distance miles, consumption mpg. Runs on smart-tools.xyz.
• gitignore_generator ~184 tokens
  Build a .gitignore from curated templates for Node, Python, Go, Rust, macOS, VS Code and more. Runs on smart-tools.xyz.
• gpa_calculator ~229 tokens
  Weighted grade point average from letter grades (US 4.0 scale, +/-) or numeric grade points and credit hours. Runs on smart-tools.xyz.
• gradient_generator ~207 tokens
  Build a CSS linear or radial gradient background declaration from two or more colors. Runs on smart-tools.xyz.
• hash_generator ~165 tokens
  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.
• height_converter ~201 tokens
  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.
• hours_calculator ~206 tokens
  Time worked between two clock times (handles overnight), minus a break, with optional pay. Times as HH:MM. Runs on smart-tools.xyz.
• htaccess_generator ~340 tokens
  Generate Apache .htaccess rules: force HTTPS, www redirect, caching, gzip, hotlink protection and more. Runs on smart-tools.xyz.
• html_entities ~213 tokens
  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.
• ideal_weight_calculator ~164 tokens
  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.
• json_formatter ~195 tokens
  Validate and pretty-print or minify JSON, reporting the line and column on a parse error. Runs on smart-tools.xyz.
• jwt_decoder ~140 tokens
  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.
• layout_fixer ~174 tokens
  Fix text typed in the wrong keyboard layout between English QWERTY and Ukrainian ЙЦУКЕН. Runs on smart-tools.xyz.
• length_converter ~221 tokens
  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 runs on smart-tools.xyz.
• loan_calculator ~182 tokens
  Monthly payment, total repayment and interest for an amortising loan (annuity formula). Runs on smart-tools.xyz.
• lorem_ipsum ~198 tokens
  Generate placeholder lorem ipsum text by paragraphs, sentences or words. Runs on smart-tools.xyz.
• margin_calculator ~150 tokens
  Profit, margin (share of price) and markup (share of cost) from cost and selling price. Runs on smart-tools.xyz.
• markdown_table ~135 tokens
  Build a padded GitHub-flavored Markdown table from CSV/TSV text (first row is the header). Runs on smart-tools.xyz.
• meta_tag_generator ~233 tokens
  Generate SEO, Open Graph and Twitter Card HTML meta tags for a page. Runs on smart-tools.xyz.
• mortgage_calculator ~267 tokens
  Monthly mortgage payment including optional down payment, property tax and insurance (PITI). Runs on smart-tools.xyz.
• number_base ~203 tokens
  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.
• pace_calculator ~230 tokens
  Running pace per km and per mile, plus speed, from distance and time. Runs on smart-tools.xyz.
• password_generator ~221 tokens
  Generate a cryptographically strong random password with configurable length and character sets. Runs on smart-tools.xyz.
• percentage_calculator ~200 tokens
  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.
• pressure_converter ~226 tokens
  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 mercury). Calculation runs on smart-tools.xyz.
• random_number_generator ~229 tokens
  Generate cryptographically random integers in a range, optionally unique and sorted. Runs on smart-tools.xyz.
• regex_tester ~183 tokens
  Test a JavaScript regular expression against text and return every match with its captured groups. Runs on smart-tools.xyz.
• remove_duplicates ~238 tokens
  Remove duplicate lines, with optional trim, case-insensitive matching, sorting or keeping only the duplicated lines. Runs on smart-tools.xyz.
• robots_txt_generator ~256 tokens
  Build a robots.txt: allow or block all, custom disallow paths, AI-crawler blocking, crawl-delay and sitemap. Runs on smart-tools.xyz.
• salary_calculator ~222 tokens
  Convert pay between hourly, daily, weekly, biweekly, monthly and annual. Runs on smart-tools.xyz.
• scientific_calculator ~248 tokens
  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. Runs on smart-tools.xyz.
• slug_generator ~166 tokens
  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.
• speed_converter ~200 tokens
  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.
• standard_deviation_calculator ~148 tokens
  Mean, variance and standard deviation (both sample and population) of a list of numbers. Runs on smart-tools.xyz.
• subnet_calculator ~172 tokens
  IPv4 subnet details: network, broadcast, mask, wildcard, host range and count for an IP and prefix. Runs on smart-tools.xyz.
• table_to_csv ~132 tokens
  Convert a pasted HTML <table> or delimited (tab/semicolon/comma) table into clean CSV. Runs on smart-tools.xyz.
• temperature_converter ~182 tokens
  Convert a value between temperature units. Units: °C (Celsius), °F (Fahrenheit), K (Kelvin), °R (Rankine). Calculation runs on smart-tools.xyz.
• text_counter ~128 tokens
  Count characters (with and without spaces), words, lines, paragraphs and estimated reading time. Runs on smart-tools.xyz.
• text_diff ~197 tokens
  Line-level diff of two texts (LCS): counts of added/removed lines plus a marked-up line list. Runs on smart-tools.xyz.
• time_converter ~208 tokens
  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.
• timestamp_converter ~204 tokens
  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.
• tip_calculator ~169 tokens
  Tip amount, total and per-person split for a bill. Runs on smart-tools.xyz.
• transliteration ~130 tokens
  Transliterate Ukrainian Cyrillic to Latin by the official KMU #55 passport standard. Runs on smart-tools.xyz.
• triangle_calculator ~247 tokens
  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.
• unit_price_calculator ~201 tokens
  Compare price per unit of two packs and report which is cheaper. Runs on smart-tools.xyz.
• url_encoder ~205 tokens
  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.
• utm_builder ~238 tokens
  Append encoded UTM campaign parameters to a URL, preserving any existing query and fragment. Runs on smart-tools.xyz.
• uuid_generator ~128 tokens
  Generate one or more random version 4 (RFC 4122) UUIDs. Runs on smart-tools.xyz.
• vat_calculator ~183 tokens
  Add VAT to a net amount or remove it from a gross amount. Runs on smart-tools.xyz.
• volume_converter ~240 tokens
  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 (US fluid ounce). Calculation runs on smart-tools.xyz.
• wcag_contrast_checker ~173 tokens
  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.
• weight_converter ~196 tokens
  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.

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