Cuelark Tools

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com.cuelark/toolsv1.1.0 Domain verified

Exact tools for agents: US tax, routing/EIN checks, business days, JSON, links, packages, citations.

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Open in the registry

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-11-10T13:29:34.229931Z",
      "publishedAt": "2026-11-10T13:29:34.229931Z",
      "statusChangedAt": "2026-11-10T13:29:34.229931Z"
    }
  },
  "server": {
    "name": "com.cuelark/tools",
    "title": "Cuelark Tools",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "remotes": [
      {
        "url": "https://tools.cuelark.com/mcp",
        "type": "streamable-http"
      }
    ],
    "version": "1.1.0",
    "websiteUrl": "https://tools.cuelark.com/mcp",
    "description": "Exact tools for agents: US tax, routing/EIN checks, business days, JSON, links, packages, citations."
  }
}

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Call this server's tools from your browser. Nothing to install.

https://tools.cuelark.com/mcp

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

calculate Read-only

Exact decimal arithmetic for an expression (no floating-point drift: 0.1+0.2 = 0.3; + − × ÷ ^ %, sqrt, ln, log, round, min, max, pi), summary statistics for a list of numbers, rounding with a chosen mode, and adult BMI from lb/in or kg/cm.

opstring

modestring

valuestring

valuesarray

decimalsinteger

height_cmnumber

height_innumber

weight_kgnumber

weight_lbnumber

expressionstring

Install

Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.

One click: Add to Cursor Add to VS Code Add to LM Studio Add to Goose

Run in a terminal

claude mcp add --transport http tools https://tools.cuelark.com/mcp

Tools (15)

Tool list last changed Nov 10, 2026.

calculate

read-only

Argument	Type	Description
op	string
mode	string
value	string \| number
values	array
decimals	integer
height_cm	number
height_in	number
weight_kg	number
weight_lb	number
expression	string

Input schema (JSON)

{
  "type": "object",
  "required": [],
  "properties": {
    "op": {
      "enum": [
        "expression",
        "stats",
        "round",
        "bmi"
      ],
      "type": "string",
      "default": "expression"
    },
    "mode": {
      "enum": [
        "half_up",
        "half_even",
        "up",
        "down",
        "ceil",
        "floor"
      ],
      "type": "string",
      "default": "half_up"
    },
    "value": {
      "type": [
        "string",
        "number"
      ]
    },
    "values": {
      "type": "array",
      "items": {
        "type": "number"
      }
    },
    "decimals": {
      "type": "integer",
      "default": 2
    },
    "height_cm": {
      "type": "number"
    },
    "height_in": {
      "type": "number"
    },
    "weight_kg": {
      "type": "number"
    },
    "weight_lb": {
      "type": "number"
    },
    "expression": {
      "type": "string",
      "examples": [
        "(1250 * 1.0825) / 12"
      ]
    }
  }
}

convert

Unit conversion (imperial and metric: length, weight, volume, area, speed, temperature, data, pressure, energy), color hex/rgb/hsl, WCAG contrast ratio, numbers in words and $ or lakh/crore formats, Markdown to HTML, pixels vs print size at a DPI, and CGPA to percentage (official formulas).

read-only

Argument	Type	Description
bg	string	contrast: background color
fg	string	contrast: text color
op*	string
to	string	units: e.g. km, kg, C, L
dpi	number
cgpa	number
from	string	units: e.g. mi, lb, F, gal
unit	string
value	string \| number	number, color, or Markdown text
width	number
height	number
scheme	string
direction	string
percentage	number

Input schema (JSON)

{
  "type": "object",
  "required": [
    "op"
  ],
  "properties": {
    "bg": {
      "type": "string",
      "description": "contrast: background color"
    },
    "fg": {
      "type": "string",
      "description": "contrast: text color"
    },
    "op": {
      "enum": [
        "units",
        "color",
        "contrast",
        "number",
        "markdown",
        "print_size",
        "cgpa"
      ],
      "type": "string"
    },
    "to": {
      "type": "string",
      "description": "units: e.g. km, kg, C, L"
    },
    "dpi": {
      "type": "number",
      "default": 300
    },
    "cgpa": {
      "type": "number"
    },
    "from": {
      "type": "string",
      "description": "units: e.g. mi, lb, F, gal"
    },
    "unit": {
      "enum": [
        "in",
        "cm",
        "mm"
      ],
      "type": "string",
      "default": "in"
    },
    "value": {
      "type": [
        "string",
        "number"
      ],
      "description": "number, color, or Markdown text"
    },
    "width": {
      "type": "number"
    },
    "height": {
      "type": "number"
    },
    "scheme": {
      "enum": [
        "cbse",
        "vtu",
        "anna"
      ],
      "type": "string"
    },
    "direction": {
      "enum": [
        "pixels_to_size",
        "size_to_pixels"
      ],
      "type": "string"
    },
    "percentage": {
      "type": "number"
    }
  }
}

dates

Calendar math: days between dates, add days/weeks/months/years, exact age (with exam cut-offs), business days skipping public holidays (US federal by default; UK, EU, CA, AU, IN, SG, AE), a country's holiday list, and cron schedules in plain English.

read-only

Argument	Type	Description
op*	string
end	string	YYYY-MM-DD or MM/DD/YYYY
exam	string
unit	string
year	integer
as_on	string	YYYY-MM-DD or MM/DD/YYYY
start	string	YYYY-MM-DD or MM/DD/YYYY
amount	integer	add / business_add; negative goes back
country	string	US, GB, GB-ENG, GB-SCT, GB-NIR, CA, AU, IN, DE, FR, ES, IT, NL, IE, SG, AE
timezone	string
birth_date	string	YYYY-MM-DD or MM/DD/YYYY
expression	string	cron, e.g. /15 9-17 * MON-FRI
subdivision	string	GB: ENG, SCT, NIR

Input schema (JSON)

{
  "type": "object",
  "required": [
    "op"
  ],
  "properties": {
    "op": {
      "enum": [
        "between",
        "add",
        "age",
        "business_add",
        "business_between",
        "holidays",
        "cron"
      ],
      "type": "string"
    },
    "end": {
      "type": "string",
      "description": "YYYY-MM-DD or MM/DD/YYYY"
    },
    "exam": {
      "enum": [
        "upsc-cse-2026",
        "ssc-chsl-2025"
      ],
      "type": "string"
    },
    "unit": {
      "enum": [
        "days",
        "weeks",
        "months",
        "years"
      ],
      "type": "string",
      "default": "days"
    },
    "year": {
      "type": "integer"
    },
    "as_on": {
      "type": "string",
      "description": "YYYY-MM-DD or MM/DD/YYYY"
    },
    "start": {
      "type": "string",
      "description": "YYYY-MM-DD or MM/DD/YYYY"
    },
    "amount": {
      "type": "integer",
      "description": "add / business_add; negative goes back"
    },
    "country": {
      "type": "string",
      "default": "US",
      "description": "US, GB, GB-ENG, GB-SCT, GB-NIR, CA, AU, IN, DE, FR, ES, IT, NL, IE, SG, AE"
    },
    "timezone": {
      "type": "string",
      "default": "UTC"
    },
    "birth_date": {
      "type": "string",
      "description": "YYYY-MM-DD or MM/DD/YYYY"
    },
    "expression": {
      "type": "string",
      "description": "cron, e.g. */15 9-17 * * MON-FRI"
    },
    "subdivision": {
      "type": "string",
      "description": "GB: ENG, SCT, NIR"
    }
  }
}

encode

Base64 and URL encode/decode (UTF-8 safe), MD5/SHA-1/SHA-256/384/512 hashes, new UUID v4/v7 or ULID (or read a ULID's time), and decode a JWT's header and payload without verifying it.

read-only

Argument	Type	Description
op*	string
algo	string
text	string
count	integer
version	integer
url_safe	boolean

Input schema (JSON)

{
  "type": "object",
  "required": [
    "op"
  ],
  "properties": {
    "op": {
      "enum": [
        "base64_encode",
        "base64_decode",
        "url_encode",
        "url_decode",
        "hash",
        "uuid",
        "ulid",
        "jwt_decode"
      ],
      "type": "string"
    },
    "algo": {
      "enum": [
        "md5",
        "sha1",
        "sha256",
        "sha384",
        "sha512"
      ],
      "type": "string",
      "default": "sha256"
    },
    "text": {
      "type": "string"
    },
    "count": {
      "type": "integer",
      "default": 1
    },
    "version": {
      "enum": [
        4,
        7
      ],
      "type": "integer",
      "default": 4
    },
    "url_safe": {
      "type": "boolean"
    }
  }
}

finance

Monthly loan payment (EMI) with a yearly amortization summary, simple and compound interest (with monthly contributions), percentage math (of, what percent, change, add, subtract), and tax added to or removed from a price at a given rate (VAT, sales tax, or India GST with CGST/SGST/IGST split).

read-only

Argument	Type	Description
a	number
b	number
op*	string
kind	string
rate	number	annual % (or tax %)
years	number
amount	number
months	integer
inclusive	boolean	sales_tax: amount already includes tax
percent_op	string
compounding	string
inter_state	boolean
monthly_contribution	number

Input schema (JSON)

{
  "type": "object",
  "required": [
    "op"
  ],
  "properties": {
    "a": {
      "type": "number"
    },
    "b": {
      "type": "number"
    },
    "op": {
      "enum": [
        "loan",
        "simple_interest",
        "compound_interest",
        "percent",
        "sales_tax"
      ],
      "type": "string"
    },
    "kind": {
      "enum": [
        "sales_tax",
        "vat",
        "gst"
      ],
      "type": "string",
      "default": "sales_tax"
    },
    "rate": {
      "type": "number",
      "description": "annual % (or tax %)"
    },
    "years": {
      "type": "number"
    },
    "amount": {
      "type": "number"
    },
    "months": {
      "type": "integer"
    },
    "inclusive": {
      "type": "boolean",
      "description": "sales_tax: amount already includes tax"
    },
    "percent_op": {
      "enum": [
        "of",
        "what_percent",
        "change",
        "add",
        "subtract"
      ],
      "type": "string"
    },
    "compounding": {
      "enum": [
        "yearly",
        "half_yearly",
        "quarterly",
        "monthly",
        "daily"
      ],
      "type": "string",
      "default": "monthly"
    },
    "inter_state": {
      "type": "boolean"
    },
    "monthly_contribution": {
      "type": "number"
    }
  }
}

ifsc_lookup

Bank, branch, address, MICR and NEFT/RTGS/IMPS/UPI support for an Indian IFSC code, from RBI's published lists via Razorpay's IFSC dataset.

read-only

Argument	Type	Description
ifsc*	string

Input schema (JSON)

{
  "type": "object",
  "required": [
    "ifsc"
  ],
  "properties": {
    "ifsc": {
      "type": "string",
      "examples": [
        "HDFC0000001"
      ]
    }
  }
}

income_tax

Estimate income tax from official tables. us_federal: 2025 or 2026 IRS brackets, standard deduction (with 65+/blind extras) or itemized, by filing status. india: FY 2025-26 or 2026-27, new vs old regime with 87A rebate, surcharge and cess. Each answer cites its source.

read-only

Argument	Type	Description
fy	string
op	string
year	integer
age65	integer
blind	integer
income*	number	Annual gross income
age_band	string
salaried	boolean
deductions	number	us: itemized total (used if above standard)
filing_status	string
deductions_old	number	india: 80C, 80D, HRA etc. total

Input schema (JSON)

{
  "type": "object",
  "required": [
    "income"
  ],
  "properties": {
    "fy": {
      "enum": [
        "2025-26",
        "2026-27"
      ],
      "type": "string",
      "default": "2026-27"
    },
    "op": {
      "enum": [
        "us_federal",
        "india"
      ],
      "type": "string",
      "default": "us_federal"
    },
    "year": {
      "enum": [
        2025,
        2026
      ],
      "type": "integer",
      "default": 2026
    },
    "age65": {
      "type": "integer",
      "maximum": 2,
      "minimum": 0
    },
    "blind": {
      "type": "integer",
      "maximum": 2,
      "minimum": 0
    },
    "income": {
      "type": "number",
      "description": "Annual gross income"
    },
    "age_band": {
      "enum": [
        "below_60",
        "60_to_79",
        "80_plus"
      ],
      "type": "string"
    },
    "salaried": {
      "type": "boolean",
      "default": true
    },
    "deductions": {
      "type": "number",
      "description": "us: itemized total (used if above standard)"
    },
    "filing_status": {
      "enum": [
        "single",
        "married_joint",
        "married_separate",
        "head_of_household"
      ],
      "type": "string",
      "default": "single"
    },
    "deductions_old": {
      "type": "number",
      "description": "india: 80C, 80D, HRA etc. total"
    }
  }
}

json

Validate and pretty-print or minify JSON (errors give line and column), or convert JSON to YAML or CSV, or CSV to JSON.

read-only

Argument	Type	Description
op	string
input*	string	JSON or CSV text
indent	integer
sort_keys	boolean

Input schema (JSON)

{
  "type": "object",
  "required": [
    "input"
  ],
  "properties": {
    "op": {
      "enum": [
        "format",
        "minify",
        "to_yaml",
        "to_csv",
        "from_csv"
      ],
      "type": "string",
      "default": "format"
    },
    "input": {
      "type": "string",
      "description": "JSON or CSV text"
    },
    "indent": {
      "type": "integer",
      "default": 2
    },
    "sort_keys": {
      "type": "boolean"
    }
  }
}

package_check

Does this package exist (catches invented names)? Latest version, deprecation, license, repository, last publish, downloads, and the newest version matching a range. Ecosystems: npm, pypi, crates.

read-only

Argument	Type	Description
name*	string
ecosystem	string
version_range	string	e.g. ^18, >=2.0,<3

Input schema (JSON)

{
  "type": "object",
  "required": [
    "name"
  ],
  "properties": {
    "name": {
      "type": "string"
    },
    "ecosystem": {
      "enum": [
        "npm",
        "pypi",
        "crates"
      ],
      "type": "string",
      "default": "npm"
    },
    "version_range": {
      "type": "string",
      "description": "e.g. ^18, >=2.0,<3"
    }
  }
}

text

Exact text facts models get wrong: word/character/grapheme counts, whether text fits X, SMS, meta title/description or custom:N limits (with a truncated version), letter frequency, case conversion, slugs, JavaScript regex matches and replacements, lorem ipsum, and OpenAI token counts.

read-only

Argument	Type	Description
op	string
to	string	case target
text	string
unit	string	lorem
count	integer	lorem amount
flags	string
letter	string	fit: count this letter, e.g. r
pattern	string	regex pattern
replace	string
targets	array	fit: x, sms, meta_title, meta_description, google_ads_headline, custom:N
encoding	string

Input schema (JSON)

{
  "type": "object",
  "required": [],
  "properties": {
    "op": {
      "enum": [
        "count",
        "fit",
        "case",
        "slug",
        "regex",
        "lorem",
        "tokens"
      ],
      "type": "string",
      "default": "count"
    },
    "to": {
      "enum": [
        "lower",
        "upper",
        "title",
        "sentence",
        "camel",
        "pascal",
        "snake",
        "kebab",
        "constant",
        "dot"
      ],
      "type": "string",
      "description": "case target"
    },
    "text": {
      "type": "string"
    },
    "unit": {
      "enum": [
        "words",
        "sentences",
        "paragraphs"
      ],
      "type": "string",
      "description": "lorem"
    },
    "count": {
      "type": "integer",
      "description": "lorem amount"
    },
    "flags": {
      "type": "string",
      "default": "g"
    },
    "letter": {
      "type": "string",
      "description": "fit: count this letter, e.g. r"
    },
    "pattern": {
      "type": "string",
      "description": "regex pattern"
    },
    "replace": {
      "type": "string"
    },
    "targets": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "fit: x, sms, meta_title, meta_description, google_ads_headline, custom:N"
    },
    "encoding": {
      "enum": [
        "o200k_base",
        "cl100k_base"
      ],
      "type": "string",
      "default": "o200k_base"
    }
  }
}

time

Current time anywhere (with DST state and next clock change), convert a wall-clock time between zones, or convert Unix timestamps to and from dates. Accepts IANA zones or common names (ET, PT, UTC, London, IST).

read-only

Argument	Type	Description
op	string
date	string	YYYY-MM-DD or MM/DD/YYYY
time	string	HH:MM 24-hour, or h:mm AM/PM
zone	string
value	string	timestamp: Unix seconds or ms, or an ISO date-time
to_zone	string
from_zone	string

Input schema (JSON)

{
  "type": "object",
  "required": [],
  "properties": {
    "op": {
      "enum": [
        "now",
        "convert",
        "timestamp"
      ],
      "type": "string",
      "default": "now"
    },
    "date": {
      "type": "string",
      "description": "YYYY-MM-DD or MM/DD/YYYY"
    },
    "time": {
      "type": "string",
      "description": "HH:MM 24-hour, or h:mm AM/PM"
    },
    "zone": {
      "type": "string",
      "default": "UTC"
    },
    "value": {
      "type": "string",
      "description": "timestamp: Unix seconds or ms, or an ISO date-time"
    },
    "to_zone": {
      "type": "string"
    },
    "from_zone": {
      "type": "string"
    }
  }
}

ui_component_lookup

Search the ui.cuelark.com shadcn/ui registry (React components, blocks, themes) and get the shadcn CLI install command for each match.

read-only

Argument	Type	Description
limit	integer
query*	string	e.g. chat input, button, theme

Input schema (JSON)

{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "limit": {
      "type": "integer",
      "default": 8
    },
    "query": {
      "type": "string",
      "description": "e.g. chat input, button, theme"
    }
  }
}

validate

Check an identifier's format and check digit: US ABA routing number, EIN, SSN (format rules only), ZIP; card numbers (Luhn) and IBAN; India GSTIN, PAN, IFSC, UPI ID, Aadhaar (Verhoeff) and PIN code. Proves a value is well formed, not that it's registered. Nothing is stored.

read-only

Argument	Type	Description
type*	string
value*	string

Input schema (JSON)

{
  "type": "object",
  "required": [
    "type",
    "value"
  ],
  "properties": {
    "type": {
      "enum": [
        "aba_routing",
        "ein",
        "ssn",
        "zip",
        "luhn",
        "iban",
        "gstin",
        "pan",
        "ifsc",
        "upi",
        "aadhaar",
        "pincode"
      ],
      "type": "string"
    },
    "value": {
      "type": "string"
    }
  }
}

verify_citation

Check that a paper exists and get its canonical metadata (title, authors, year, venue, DOI link, retraction flag) by DOI, arXiv id, or title plus author. Uses Crossref, OpenAlex and arXiv. No abstracts.

read-only

Argument	Type	Description
doi	string	DOI or arXiv id
year	integer
title	string
author	string	A surname helps

Input schema (JSON)

{
  "type": "object",
  "required": [],
  "properties": {
    "doi": {
      "type": "string",
      "description": "DOI or arXiv id"
    },
    "year": {
      "type": "integer"
    },
    "title": {
      "type": "string"
    },
    "author": {
      "type": "string",
      "description": "A surname helps"
    }
  }
}

verify_links

Check up to 20 URLs live: HTTP status, redirects, final URL, page title and canonical, and optionally whether each page contains a quote. Respects robots.txt and refuses private addresses.

read-only

Argument	Type	Description
urls*	array
quote	string	Text the page should contain

Input schema (JSON)

{
  "type": "object",
  "required": [
    "urls"
  ],
  "properties": {
    "urls": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 20
    },
    "quote": {
      "type": "string",
      "description": "Text the page should contain"
    }
  }
}

Security checkA100/100

We read every tool's name, description and inputs the way the model will, looking for instructions hidden from you. A clean result means no warning signs, not a guarantee. Scanned Nov 10, 2026.

Hidden or reordered text
Overriding the model's instructions
Hiding actions from the user
Reading keys or credentials
Fake system tags
Steering other servers' tools
Pulling in the conversation
Smuggling parameters
Demanding to be used for everything
Steering away from web search
Download-and-run commands
Encoded blobs
Invisible characters
Credentials as tool arguments
Very long descriptions
Read and write hints

How the security check works

Tool changes

What changed in this server's tools since we started watching, newest first. Each change is scanned again.

print_sizeremovedNov 10, 2026
Convert between pixels and physical size at a DPI: pixels → print size (mm/cm/in), or physical size → pixels needed.
timezone_convertremovedNov 10, 2026
Convert a wall-clock date and time from one IANA time zone to another with daylight saving for that date, and report each zone's next clock change.
cgpa_convertremovedNov 10, 2026
Convert CGPA to percentage or back using only formulas the board or university publishes: cbse (Percentage = 9.5 × CGPA); vtu (Percentage = (CGPA − 0.75) × 10); anna (Percentage = CGPA × 10). Each result cites the source.
text_countremovedNov 10, 2026
Count words (Unicode word rules, works for Japanese/Chinese/Hindi), characters as graphemes, sentences, paragraphs, reading time, X/Twitter weighted length, SMS segments, and platform limits.
age_calculateremovedNov 10, 2026
Exact age in years, months and days on a date, and eligibility against an age limit ("attained min, not attained max"). Built-in exam presets from official notices: upsc-cse-2026 (UPSC Civil Services 2026), ssc-chsl-2025 (SSC CHSL 2025).
date_calculateremovedNov 10, 2026
Days between two dates (with years/months/days and working days), or add/subtract days, weeks, months, years or working days. Month ends clamp (31 Jan + 1 month = 28/29 Feb).
cron_explainremovedNov 10, 2026
Describe a cron expression in plain English and list its next run times in an IANA time zone. Accepts 5-field cron, @daily-style macros and pasted crontab lines.
count_tokensremovedNov 10, 2026
Exact OpenAI token counts (o200k_base for GPT-4o/4.1/5 and o-series, cl100k_base for GPT-4/3.5) plus labelled estimates for Claude and Gemini.
json_convertremovedNov 10, 2026
Convert between JSON and YAML (JSON → YAML) or CSV (both directions; CSV needs a header row, JSON needs an array of objects).
json_formatremovedNov 10, 2026
Validate JSON and return it pretty-printed or minified, optionally with keys sorted. Errors give line and column.

ui_component_lookupchanged (description, inputs)Nov 10, 2026

Search the ui.cuelark.com shadcn/ui registry (React components, ~~blocks~~ ~~and~~blocks, themes) and get the shadcn CLI install command for each match.

{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "limit": {
      "type": "integer",
      "default": 8,
      "maximum": 25,
      "minimum": 1
    },
    "query": {
      "type": "string",
      "description": "e.g. chat input, button, theme"
    }
  },
  "additionalProperties": false
}

{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "limit": {
      "type": "integer",
      "default": 8
    },
    "query": {
      "type": "string",
      "description": "e.g. chat input, button, theme"
    }
  }
}

verify_citationaddedNov 10, 2026
Check that a paper exists and get its canonical metadata (title, authors, year, venue, DOI link, retraction flag) by DOI, arXiv id, or title plus author. Uses Crossref, OpenAlex and arXiv. No abstracts.
package_checkaddedNov 10, 2026
Does this package exist (catches invented names)? Latest version, deprecation, license, repository, last publish, downloads, and the newest version matching a range. Ecosystems: npm, pypi, crates.
verify_linksaddedNov 10, 2026
Check up to 20 URLs live: HTTP status, redirects, final URL, page title and canonical, and optionally whether each page contains a quote. Respects robots.txt and refuses private addresses.
ifsc_lookupaddedNov 10, 2026
Bank, branch, address, MICR and NEFT/RTGS/IMPS/UPI support for an Indian IFSC code, from RBI's published lists via Razorpay's IFSC dataset.
validateaddedNov 10, 2026
Check an identifier's format and check digit: US ABA routing number, EIN, SSN (format rules only), ZIP; card numbers (Luhn) and IBAN; India GSTIN, PAN, IFSC, UPI ID, Aadhaar (Verhoeff) and PIN code. Proves a value is well formed, not that it's registered. Nothing is stored.
income_taxaddedNov 10, 2026
Estimate income tax from official tables. us_federal: 2025 or 2026 IRS brackets, standard deduction (with 65+/blind extras) or itemized, by filing status. india: FY 2025-26 or 2026-27, new vs old regime with 87A rebate, surcharge and cess. Each answer cites its source.
calculateaddedNov 10, 2026
Exact decimal arithmetic for an expression (no floating-point drift: 0.1+0.2 = 0.3; + − × ÷ ^ %, sqrt, ln, log, round, min, max, pi), summary statistics for a list of numbers, rounding with a chosen mode, and adult BMI from lb/in or kg/cm.
financeaddedNov 10, 2026
Monthly loan payment (EMI) with a yearly amortization summary, simple and compound interest (with monthly contributions), percentage math (of, what percent, change, add, subtract), and tax added to or removed from a price at a given rate (VAT, sales tax, or India GST with CGST/SGST/IGST split).
convertaddedNov 10, 2026
Unit conversion (imperial and metric: length, weight, volume, area, speed, temperature, data, pressure, energy), color hex/rgb/hsl, WCAG contrast ratio, numbers in words and $ or lakh/crore formats, Markdown to HTML, pixels vs print size at a DPI, and CGPA to percentage (official formulas).