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.

REST APILive
EmailLive
Webforhosting.com/kitLive
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iOS & AndroidBuilding
WhatsAppComing
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_spaceNew⚙️ Developer UtilitiesLogical NOR calculatortrue only when both inputs are falsePPavilion$0.002Open math.norNew⚙️ Developer UtilitiesMultiply complex numbers(a+bi)(c+di) product, freeAabuela$0.002Open math.multiply_complex_numbersNew⚙️ Developer UtilitiesMöbius strip calculatorsurface area and edge lengthSsamurai$0.002Open math.mobius_stripNew⚙️ Developer UtilitiesLong multiplication calculatordigit-by-digit product, freeAabuela$0.002Open math.long_multiplicationNew⚙️ Developer UtilitiesMean calculatorarithmetic mean of a list of numbersPPavilion$0.002Open math.meanNew⚙️ Developer UtilitiesLog2 calculatorbase-2 logarithm of a positive numberSsamurai$0.002Open math.log_2New⚙️ Developer UtilitiesLine of intersection of two planesparametric formAabuela$0.002Open math.line_of_intersection_of_two_planesNew⚙️ Developer UtilitiesLinear-feedback shift registerLFSR bit sequence from tapsSsamurai$0.002Open math.linear_feedback_shift_registerNew⚙️ Developer UtilitiesLinear combination calculatorweighted sum of vectorsPPavilion$0.002Open math.linear_combinationNew⚙️ Developer UtilitiesLength of a rectangle calculatorfrom area and width, freeAabuela$0.002Open math.length_of_a_rectangleNew⚙️ Developer UtilitiesLeast to greatest fractionssort a list from smallest to largestPPavilion$0.002Open math.least_to_greatest_fractions

The full catalog

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

⚙️ Developer UtilitiesFree
Decking calculator
board count and total linear feet, free
Aabuela
POST /build/decking$0.002
⚙️ Developer UtilitiesFree
Drywall calculator
sheets and area from wall lengths, free
PPavilion
POST /build/drywall$0.002
⚙️ Developer UtilitiesFree
Elevation grade calculator
percent, ratio and angle from rise
Ssamurai
POST /build/elevation-grade$0.002
⚙️ Developer UtilitiesFree
Fence estimate calculator
posts, rails, pickets and total cost, free
Aabuela
POST /build/fence-estimate$0.002
⚙️ Developer UtilitiesFree
Fence post burial depth
hole depth from post length and frost line
Ssamurai
POST /build/fence-post-depth$0.002
⚙️ Developer UtilitiesFree
Fire flow calculator
ISO needed GPM from area, free
PPavilion
POST /build/fire-flow$0.002
⚙️ Developer UtilitiesFree
Wall framing calculator
studs, plates and lumber counts, free
Aabuela
POST /build/framing$0.002
⚙️ Developer UtilitiesFree
French drain calculator
gravel cubic yards and pipe length
Ssamurai
POST /build/french-drain$0.002
⚙️ Developer UtilitiesFree
Square feet to cubic yards
area × depth to yd³ and ft³, free
PPavilion
POST /build/ft2-yd3$0.002
⚙️ Developer UtilitiesFree
Glass pane weight calculator
pounds from size and density
Ssamurai
POST /build/glass-weight$0.002
⚙️ Developer UtilitiesFree
Gravel driveway calculator
cubic yards and tons from dimensions
Aabuela
POST /build/gravel-driveway$0.002
⚙️ Developer UtilitiesFree
Grout calculator
volume and weight from tiles and joints
PPavilion
POST /build/grout$0.002
⚙️ Developer UtilitiesFree
Hoop house calculator
film cover area and hoop count
Ssamurai
POST /build/hoop-house$0.002
⚙️ Developer UtilitiesFree
Sprinkler K-factor calculator
K = Q / √P from GPM and PSI
Aabuela
POST /build/k-factor$0.002
⚙️ Developer UtilitiesFree
Limestone calculator
cubic yards and tons from L×W×D, free
PPavilion
POST /build/limestone$0.002
⚙️ Developer UtilitiesFree
Log weight calculator
pounds and kg from diameter, length, density
Ssamurai
POST /build/log-weight$0.002
⚙️ Developer UtilitiesFree
Lumber calculator
board count and waste allowance, free
Aabuela
POST /build/lumber$0.002
⚙️ Developer UtilitiesFree
Miter angle calculator
saw blade angle for corners, free
PPavilion
POST /build/miter-angle$0.002
⚙️ Developer UtilitiesFree
Paver sand calculator
cubic yards from paved area and sand depth
Ssamurai
POST /build/paver-sand$0.002
⚙️ Developer UtilitiesFree
Pipe weight calculator
hollow pipe mass from OD, wall, length
Aabuela
POST /build/pipe-weight$0.002
⚙️ Developer UtilitiesFree
Plywood calculator
sheets needed from surface and sheet size
Ssamurai
POST /build/plywood$0.002
⚙️ Developer UtilitiesFree
Pond volume calculator
gallons and liters from L×W×depth, free
PPavilion
POST /build/pond$0.002
⚙️ Developer UtilitiesFree
Post hole concrete calculator
cubic yards minus post
Aabuela
POST /build/post-hole-concrete$0.002
⚙️ Developer UtilitiesFree
Retaining wall calculator
blocks and cap units from length, free
PPavilion
POST /build/retaining-wall$0.002
⚙️ Developer UtilitiesFree
Rip-rap calculator
stone tons from area, thickness, density
Ssamurai
POST /build/rip-rap$0.002
⚙️ Developer UtilitiesFree
Road base calculator
cubic yards and tons from dimensions
Aabuela
POST /build/road-base$0.002
⚙️ Developer UtilitiesFree
Roof truss calculator
rafter length and truss count from span
Ssamurai
POST /build/roof-truss$0.002
⚙️ Developer UtilitiesFree
Round pen calculator
panels from diameter and panel length
PPavilion
POST /build/round-pen$0.002
⚙️ Developer UtilitiesFree
Sealant calculator
tubes from joint length, width and depth
Aabuela
POST /build/sealant$0.002
⚙️ Developer UtilitiesFree
Siding calculator
panels and squares from wall area
Ssamurai
POST /build/siding$0.002
⚙️ Developer UtilitiesFree
Snow load calculator
design roof snow load in psf, free
PPavilion
POST /build/snow-load$0.002
⚙️ Developer UtilitiesFree
Sonotube calculator
cubic yards and bags from diameter, height
Aabuela
POST /build/sonotube$0.002
⚙️ Developer UtilitiesFree
Spiral staircase calculator
treads, rotation and handrail
Ssamurai
POST /build/spiral-staircase$0.002
⚙️ Developer UtilitiesFree
Square yards calculator
length × width in feet to yd², free
PPavilion
POST /build/square-yards$0.002
⚙️ Developer UtilitiesFree
Steel weight calculator
plate, bar, tube and angle, kg and lb
Aabuela
POST /build/steel-weight$0.002
⚙️ Developer UtilitiesFree
Taper calculator
taper per inch and angle from diameters
Ssamurai
POST /build/taper$0.002
⚙️ Developer UtilitiesFree
Thread calculator
pitch, minor diameter and tap drill, free
PPavilion
POST /build/thread$0.002
⚙️ Developer UtilitiesFree
Cooling tonnage calculator
room BTU and tons from area
Aabuela
POST /build/tonnage$0.002
⚙️ Developer UtilitiesFree
True position calculator
diametral hole position error
Ssamurai
POST /build/true-position$0.002
⚙️ Developer UtilitiesFree
Vinyl siding calculator
squares and panels from walls, free
PPavilion
POST /build/vinyl-siding$0.002
⚙️ Developer UtilitiesFree
Welding electrode calculator
count and weld metal weight
Ssamurai
POST /build/welding$0.002
⚙️ Developer UtilitiesFree
Wood beam span calculator
allowable span from grade, size, spacing
Aabuela
POST /build/wood-beam-span$0.002
⚙️ Developer UtilitiesFree
Anaerobic threshold calculator
Karvonen heart rate, free
PPavilion
POST /sports/anaerobic-threshold$0.002
⚙️ Developer UtilitiesFree
Batting average calculator
hits over at-bats to 3 decimals
Ssamurai
POST /sports/batting-average$0.002
⚙️ Developer UtilitiesFree
Batting strike rate calculator
runs per 100 balls
Aabuela
POST /sports/batting-strike-rate$0.002
⚙️ Developer UtilitiesFree
Bike gear calculator
ratio and metres of development, free
PPavilion
POST /sports/bike-gear-calculator$0.002
⚙️ Developer UtilitiesFree
Bike pace calculator
km/h and min/km from distance and time
Aabuela
POST /sports/bike-pace$0.002
⚙️ Developer UtilitiesFree
Bike size calculator
frame size from height and inseam
Ssamurai
POST /sports/bike-size$0.002
⚙️ Developer UtilitiesFree
Calories burned by heart rate
estimate from HR, age, weight, sex
Ssamurai
POST /sports/calories-burned-by-heart-rate$0.002
⚙️ Developer UtilitiesFree
Calories burned standing calculator
kcal from weight and time
Aabuela
POST /sports/calories-burned-standing$0.002
⚙️ Developer UtilitiesFree
Burpee calorie calculator
calories burned from weight, reps and time
PPavilion
POST /sports/burpee-calorie$0.002
⚙️ Developer UtilitiesFree
Cycling heart rate zones
bpm ranges from HRmax or LTHR
Ssamurai
POST /sports/cycling-hr$0.002
⚙️ Developer UtilitiesFree
Cycling wattage calculator
watts from speed, weight, grade & drag
Aabuela
POST /sports/cycling-wattage$0.002
⚙️ Developer UtilitiesFree
Cycling training zones
FTP power and LTHR heart-rate bands, free
PPavilion
POST /sports/cycling-zones$0.002
⚙️ Developer UtilitiesFree
Earned run average calculator
ERA from earned runs and innings
Ssamurai
POST /sports/earned-run-average$0.002
⚙️ Developer UtilitiesFree
Effective field goal % calculator
eFG% from FGM, 3PM and FGA
PPavilion
POST /sports/efg$0.002
⚙️ Developer UtilitiesFree
Elliptical calorie calculator
calories burned, free
Aabuela
POST /sports/elliptical-calorie$0.002
⚙️ Developer UtilitiesFree
Fat-burning zone calculator
target bpm from age and rest HR
Ssamurai
POST /sports/fat-burning-zone$0.002
⚙️ Developer UtilitiesFree
Fish weight calculator
estimate from species, length and girth
Aabuela
POST /sports/fish-weight$0.002
⚙️ Developer UtilitiesFree
Arrow FOC calculator
front of center % from length and balance
PPavilion
POST /sports/foc$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.

Balance
$10.00+

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