ForHosting KIT

Everything you need.
One Kit.

Hundreds of ready-made tasks — PDF, images, audio, OCR, text AI, scraping, data and more — behind a single REST API. Send a job, get a finished result by webhook. No servers, no per-model tokens, a price you can read.

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Get your API key Browse the catalog
7827ready-made tools
6channels
1API & key
$0.002per call, from

New capabilities

Fresh in the kit — just landed.

New⚙️ Developer UtilitiesNull space calculatorkernel basis of a matrix from its rowsSsamurai$0.002Open math.null_space →New⚙️ Developer UtilitiesLogical NOR calculatortrue only when both inputs are falsePPavilion$0.002Open math.nor →New⚙️ Developer UtilitiesMultiply complex numbers(a+bi)(c+di) product, freeAabuela$0.002Open math.multiply_complex_numbers →New⚙️ Developer UtilitiesMöbius strip calculatorsurface area and edge lengthSsamurai$0.002Open math.mobius_strip →New⚙️ Developer UtilitiesLong multiplication calculatordigit-by-digit product, freeAabuela$0.002Open math.long_multiplication →New⚙️ Developer UtilitiesMean calculatorarithmetic mean of a list of numbersPPavilion$0.002Open math.mean →New⚙️ Developer UtilitiesLog2 calculatorbase-2 logarithm of a positive numberSsamurai$0.002Open math.log_2 →New⚙️ Developer UtilitiesLine of intersection of two planesparametric formAabuela$0.002Open math.line_of_intersection_of_two_planes →New⚙️ Developer UtilitiesLinear-feedback shift registerLFSR bit sequence from tapsSsamurai$0.002Open math.linear_feedback_shift_register →New⚙️ Developer UtilitiesLinear combination calculatorweighted sum of vectorsPPavilion$0.002Open math.linear_combination →New⚙️ Developer UtilitiesLength of a rectangle calculatorfrom area and width, freeAabuela$0.002Open math.length_of_a_rectangle →New⚙️ Developer UtilitiesLeast to greatest fractionssort a list from smallest to largestPPavilion$0.002Open math.least_to_greatest_fractions →

Popular capabilities

Loved right now, by real traffic.

The full catalog

Search or filter by category. Every capability is its own endpoint with a published price.

⚙️ Developer UtilitiesFree
Basketball game score calculator
Hollinger GmSc from box stats
Ssamurai
POST /sports/game-score$0.002
⚙️ Developer UtilitiesFree
Heart rate calculator
estimated max HR from age in bpm
Aabuela
POST /sports/heart-rate$0.002
⚙️ Developer UtilitiesFree
Hiking calculator
time and calories from distance and gain
PPavilion
POST /sports/hiking$0.002
⚙️ Developer UtilitiesFree
ICC net run rate calculator
NRR from runs and overs
Ssamurai
POST /sports/icc$0.002
⚙️ Developer UtilitiesFree
Lubricant cost to run
annual cost from price, rate and hours
Aabuela
POST /sports/lubricant-cost-to-run$0.002
⚙️ Developer UtilitiesFree
Magic mile calculator
predict 5K to marathon finish times
PPavilion
POST /sports/magic-mile$0.002
⚙️ Developer UtilitiesFree
Max heart rate
Tanaka 208 − 0.7×age for sports, bpm
Ssamurai
POST /sports/max-heart-rate$0.002
⚙️ Developer UtilitiesFree
On-base plus slugging calculator
OPS from OBP and SLG
Aabuela
POST /sports/on-base-plus-slugging$0.002
⚙️ Developer UtilitiesFree
Pool table room size calculator
min length and width from table and cue
PPavilion
POST /sports/pool-table-room-size$0.002
⚙️ Developer UtilitiesFree
Race predictor
Riegel finish time from a known race
Ssamurai
POST /sports/race-predictor$0.002
⚙️ Developer UtilitiesFree
Save percentage calculator
SV% from saves and shots
Aabuela
POST /sports/save-percentage$0.002
⚙️ Developer UtilitiesFree
Slugging percentage calculator
total bases over at-bats to 3 decimals
Ssamurai
POST /sports/slugging-percentage$0.002
⚙️ Developer UtilitiesFree
Snow shoveling calories burned
kcal from weight, time and snow
PPavilion
POST /sports/snow-shoveling-calories-burned$0.002
⚙️ Developer UtilitiesFree
Steps to calories calculator
kcal from steps, weight, stride
Aabuela
POST /sports/steps-to-calories$0.002
⚙️ Developer UtilitiesFree
Steps to km calculator
convert steps to kilometers
Ssamurai
POST /sports/steps-to-km$0.002
⚙️ Developer UtilitiesFree
Swimming time calculator
finish time from pace per 100m
PPavilion
POST /sports/swimming-time$0.002
⚙️ Developer UtilitiesFree
Training pace calculator
min/km from elapsed time and distance
Aabuela
POST /sports/training-pace$0.002
⚙️ Developer UtilitiesFree
Triathlon time calculator
swim, bike, run, T1 and T2
Ssamurai
POST /sports/triathlon$0.002
⚙️ Developer UtilitiesFree
True shooting % calculator
TS% from points, FGA and FTA
PPavilion
POST /sports/ts$0.002
⚙️ Developer UtilitiesFree
Alcohol by volume calculator
ABV from OG and FG
Aabuela
POST /cook/alcohol-by-volume$0.002
⚙️ Developer UtilitiesFree
Alcohol dilution calculator
water to add from volume and ABV
Ssamurai
POST /cook/alcohol-dilution$0.002
⚙️ Developer UtilitiesFree
BBQ party calculator
meat, sides and drinks from guest count
PPavilion
POST /cook/bbq-party$0.002
⚙️ Developer UtilitiesFree
Brine calculator
salt and sugar grams from water and salinity
Aabuela
POST /cook/brine$0.002
⚙️ Developer UtilitiesFree
Cake pans calculator
batter volume scale between two round pans
Ssamurai
POST /cook/cake-pans$0.002
⚙️ Developer UtilitiesFree
VO2 max calculator for runners
Daniels race formula estimate
Aabuela
POST /sports/vo2-max-runners$0.002
⚙️ Developer UtilitiesFree
Weight loss calculator
weekly and daily calorie deficit
Ssamurai
POST /sports/weight-loss$0.002
⚙️ Developer UtilitiesFree
Windsurfing sail size calculator
sail area from weight and wind
PPavilion
POST /sports/windsurfing$0.002
⚙️ Developer UtilitiesFree
Chocolate serving calculator
grams and bars from guests
PPavilion
POST /cook/chocolate$0.002
⚙️ Developer UtilitiesFree
Coffee kick calculator
hours until caffeine wears off
Ssamurai
POST /cook/coffee-kick$0.002
⚙️ Developer UtilitiesFree
Coffee ratio calculator
grounds from water volume
Aabuela
POST /cook/coffee-ratio$0.002
⚙️ Developer UtilitiesFree
Cups to pounds converter
flour, sugar, butter by density, free
PPavilion
POST /cook/cups-to-pounds$0.002
⚙️ Developer UtilitiesFree
Donut calorie calculator
kcal and running time to burn
Aabuela
POST /cook/donut$0.002
⚙️ Developer UtilitiesFree
Egg boiling time calculator
minutes from size, temp and doneness
Ssamurai
POST /cook/egg-boiling$0.002
⚙️ Developer UtilitiesFree
Grams to tsp converter
by ingredient density, free
PPavilion
POST /cook/grams-to-tsp$0.002
⚙️ Developer UtilitiesFree
Healthy coffee calorie calculator
type, milk and sugar
Aabuela
POST /cook/healthy-coffee$0.002
⚙️ Developer UtilitiesFree
Ice cream calculator
cream, milk and sugar from servings
Ssamurai
POST /cook/ice-cream$0.002
⚙️ Developer UtilitiesFree
Oil to butter converter
recipe oil to grams of butter
Aabuela
POST /cook/oil-to-butter$0.002
⚙️ Developer UtilitiesFree
Pancake recipe scaler
scale ingredients by servings or pancakes
PPavilion
POST /cook/pancake-recipe$0.002
⚙️ Developer UtilitiesFree
Perfect pizza dough calculator
flour, water, salt and yeast grams
Ssamurai
POST /cook/perfect-pizza$0.002
⚙️ Developer UtilitiesFree
Pizza party calculator
how many pizzas to order
Aabuela
POST /cook/pizza-party$0.002
⚙️ Developer UtilitiesFree
Popcorn yield calculator
popped volume from unpopped kernels
PPavilion
POST /cook/popcorn$0.002
⚙️ Developer UtilitiesFree
Quarantine food calculator
household servings for isolation days
Ssamurai
POST /cook/quarantine-food$0.002
⚙️ Developer UtilitiesFree
Self-rising flour calculator
baking powder and salt from flour
Aabuela
POST /cook/self-rising-flour$0.002
⚙️ Developer UtilitiesFree
Steak cook time
pan or grill minutes per side by thickness
PPavilion
POST /cook/steak-cook-time$0.002
⚙️ Developer UtilitiesFree
Taco bar calculator
meat, shells and toppings from guests
Ssamurai
POST /cook/taco-bar$0.002
⚙️ Developer UtilitiesFree
Thanksgiving calorie calculator
turkey, sides, dessert, drinks
Aabuela
POST /cook/thanksgiving-calories$0.002
⚙️ Developer UtilitiesFree
Turkey defrost time
refrigerator or cold water by weight
PPavilion
POST /cook/turkey-defrost$0.002
⚙️ Developer UtilitiesFree
Turkey thawing calculator
fridge days or cold-water hours
Ssamurai
POST /cook/turkey-thawing$0.002
⚙️ Developer UtilitiesFree
Wedding alcohol calculator
beer, wine and liquor bottles
Aabuela
POST /cook/wedding-alcohol$0.002
⚙️ Developer UtilitiesFree
Associative property of addition
grouped sums, free
Aabuela
POST /math/associative-property$0.002
⚙️ Developer UtilitiesFree
Area of a quadrilateral
shoelace from four vertices
Ssamurai
POST /math/area-quadrilateral$0.002
⚙️ Developer UtilitiesFree
Average percentage calculator
mean of a list of percentages
PPavilion
POST /math/average-percentage$0.002
⚙️ Developer UtilitiesFree
Average calculator
arithmetic mean of a list of numbers
PPavilion
POST /math/average$0.002
⚙️ Developer UtilitiesFree
Base of a triangle calculator
find base from area and height
Ssamurai
POST /math/base-of-a-triangle$0.002
⚙️ Developer UtilitiesFree
Bessel function calculator
J_n(x) first kind, free
Aabuela
POST /math/bessel-function$0.002
⚙️ Developer UtilitiesFree
Convert fraction to percentage
turn a/b into a percent, free
PPavilion
POST /math/convert-fraction-to-percentage$0.002
⚙️ Developer UtilitiesFree
Crescent area calculator
two radii and center distance, free
Aabuela
POST /math/crescent-area$0.002
⚙️ Developer UtilitiesFree
Pipe cross-sectional area
A = πd²/4 from inner diameter
PPavilion
POST /math/cross-sectional-area$0.002
⚙️ Developer UtilitiesFree
Csc calculator
cosecant of an angle in degrees or radians
Aabuela
POST /math/csc$0.002
⚙️ Developer UtilitiesFree
Dividing radicals calculator
simplify and rationalize the quotient
PPavilion
POST /math/dividing-radicals$0.002

How it works

1

Get your key

Create an account with your email and add balance when you need it. No subscription, no sales call.

2

Call the endpoint

One authenticated POST. The API returns a task_id immediately — copy-paste snippets in five languages on every page.

3

Collect the result

Receive a signed webhook the moment it's ready, or fetch a signed link. A failed task is never charged.

Pay only for what you use

No subscription. Free tools run in your browser; paid tasks draw from your balance, which never expires.

Free tools
$0.00

On-device utilities — hash, QR, JSON, Text→PDF and more — run in your browser. No account, no limits.

Pay-as-you-go
Per task
$0.002+

The full API — 7800+ capabilities — billed only for what you run, from $0.002 per call. No monthly fee.

Balance
$10.00+

Top up your balance and spend it across web, API and the app. It never expires.

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