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
TelegramLive
iOS & AndroidBuilding
WhatsAppComing
Get your API key Browse the catalog
7554ready-made tools
6channels
1API & key
$0.002per call, from

New capabilities

Fresh in the kit — just landed.

New⚙️ Developer UtilitiesVolume to density calculatorρ=m/V from mass and volumeAabuela$0.002Open phys.volume_to_density →New⚙️ Developer UtilitiesVoltage regulation calculator% from no-load and full-load VSsamurai$0.002Open phys.voltage_regulation →New⚙️ Developer UtilitiesVickers hardness number calculatorHV from force and diagonalPPavilion$0.002Open phys.vickers_hardness_number →New⚙️ Developer UtilitiesVelocity calculatoraverage v = d/t in metres per secondAabuela$0.002Open phys.velocity →New⚙️ Developer UtilitiesValve flow coefficient calculatorCv from GPM, ΔP and GSsamurai$0.002Open phys.valve_flow_coefficient →New⚙️ Developer UtilitiesBarrel twist rate calculatorGreenhill formula, one turn per inchPPavilion$0.002Open phys.twist_rate →New⚙️ Developer UtilitiesTrue strain calculatorε_t = ln(1+ε) from engineering strainAabuela$0.002Open phys.true_strain →New⚙️ Developer UtilitiesTransmission coefficient calculatorpower T from η₁, η₂Ssamurai$0.002Open phys.transmission →New⚙️ Developer UtilitiesTorsional stiffness calculatorκ = GJ/L in N·m/rad, freePPavilion$0.002Open phys.torsional_stiffness →New⚙️ Developer UtilitiesTorsional spring calculatorκ = E d⁴ / (64 D N), N·mm/radAabuela$0.002Open phys.torsional_spring →New⚙️ Developer UtilitiesToilet paper race mass moment of inertiaI = ½m(ri²+ro²)Ssamurai$0.002Open phys.toilet_paper_race_mass_moment_inertia →New⚙️ Developer UtilitiesTime dilation calculatordilated time from proper time and velocityPPavilion$0.002Open phys.time_dilation →

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
Buying power calculator
inflation-adjusted value of money
Aabuela
POST /fin/buying-power$0.002
⚙️ Developer UtilitiesFree
California overtime calculator
daily, weekly, and double-time
PPavilion
POST /fin/california-overtime$0.002
⚙️ Developer UtilitiesFree
California sales tax calculator
7.25% statewide base, tax and total
Aabuela
POST /fin/california-sales-tax$0.002
⚙️ Developer UtilitiesFree
California income tax calculator
2025 brackets, tax owed
Aabuela
POST /fin/california-tax$0.002
⚙️ Developer UtilitiesFree
Call put option calculator
expiry payoff and net profit
PPavilion
POST /fin/call-put-option$0.002
⚙️ Developer UtilitiesFree
Cap rate calculator
capitalization rate from NOI and value
PPavilion
POST /fin/cap-rate$0.002
⚙️ Developer UtilitiesFree
CAPM calculator
expected return from beta and market premium
Aabuela
POST /fin/capm$0.002
⚙️ Developer UtilitiesFree
Car lease calculator
monthly payment from price and money factor
Aabuela
POST /fin/car-lease$0.002
⚙️ Developer UtilitiesFree
Car loan EMI calculator
monthly installment and total interest
PPavilion
POST /fin/car-loan-emi$0.002
⚙️ Developer UtilitiesFree
Car refinance calculator
monthly and total savings from a lower rate
Aabuela
POST /fin/car-refinance$0.002
⚙️ Developer UtilitiesFree
Carried interest calculator
manager share of fund profits
PPavilion
POST /fin/carried-interest$0.002
⚙️ Developer UtilitiesFree
CARES Act 2020 rebate calculator
credit from AGI and dependents
Aabuela
POST /fin/cash-act-2020$0.002
⚙️ Developer UtilitiesFree
Cash back calculator
earned amount from spend and percent
PPavilion
POST /fin/cash-back$0.002
⚙️ Developer UtilitiesFree
CD calculator
certificate of deposit maturity and interest
Aabuela
POST /fin/cd$0.002
⚙️ Developer UtilitiesFree
Cell phone plan calculator
monthly cost from base, rate, GB
PPavilion
POST /fin/cell-phone-plan$0.002
⚙️ Developer UtilitiesFree
CLTV calculator
combined loan-to-value from all liens
PPavilion
POST /fin/cltv$0.002
⚙️ Developer UtilitiesFree
Cobb-Douglas production function
output from capital and labor
Aabuela
POST /fin/cobb-douglas-production-function$0.002
⚙️ Developer UtilitiesFree
Combined ratio calculator
loss ratio plus expense ratio
PPavilion
POST /fin/combined-ratio$0.002
⚙️ Developer UtilitiesFree
Commercial lease calculator
total cost from rent, term, extras
Aabuela
POST /fin/commercial-lease$0.002
⚙️ Developer UtilitiesFree
Comparative advantage calculator
opportunity costs of two goods
PPavilion
POST /fin/comparative-advantage$0.002
⚙️ Developer UtilitiesFree
Compound growth calculator
future value from rate and periods
Aabuela
POST /fin/compound-growth$0.002
⚙️ Developer UtilitiesFree
Compound interest calculator
final balance and interest
PPavilion
POST /fin/compound-interest$0.002
⚙️ Developer UtilitiesFree
Compound interest rate calculator
implied annual rate from growth
Aabuela
POST /fin/compound-interest-rate$0.002
⚙️ Developer UtilitiesFree
Consulting fees calculator
hourly rate, hours and retainer
Aabuela
POST /fin/consulting-fees$0.002
⚙️ Developer UtilitiesFree
Consumer surplus calculator
willingness to pay minus price
PPavilion
POST /fin/consumer-surplus$0.002
⚙️ Developer UtilitiesFree
Continuous compound calculator
final amount and interest
PPavilion
POST /fin/continuous-compound$0.002
⚙️ Developer UtilitiesFree
Cost of capital calculator
WACC from equity, debt and tax
Aabuela
POST /fin/cost-of-capital$0.002
⚙️ Developer UtilitiesFree
Cost of doing business calculator
total cost and cost per unit
PPavilion
POST /fin/cost-of-doing-business$0.002
⚙️ Developer UtilitiesFree
Cost of equity calculator
CAPM from beta and market return
Aabuela
POST /fin/cost-of-equity$0.002
⚙️ Developer UtilitiesFree
Coupon payment calculator
periodic amount from face and rate
PPavilion
POST /fin/coupon-payment$0.002
⚙️ Developer UtilitiesFree
Coupon rate calculator
bond coupon from annual payment and par
Aabuela
POST /fin/coupon-rate$0.002
⚙️ Developer UtilitiesFree
CPA calculator
cost per acquisition from ad spend, free
Aabuela
POST /fin/cpa$0.002
⚙️ Developer UtilitiesFree
CPC CPM calculator
cost per click and cost per mille
PPavilion
POST /fin/cpc-cpm$0.002
⚙️ Developer UtilitiesFree
CPI inflation calculator
percent change from two CPI values
PPavilion
POST /fin/cpi-inflation$0.002
⚙️ Developer UtilitiesFree
CPM calculator
cost per thousand impressions, free online
Aabuela
POST /fin/cpm$0.002
⚙️ Developer UtilitiesFree
Credit card payoff calculator
months and total interest
PPavilion
POST /fin/credit-card$0.002
⚙️ Developer UtilitiesFree
Credit card interest calculator
billing-cycle charge from APR
Aabuela
POST /fin/credit-card-interest$0.002
⚙️ Developer UtilitiesFree
Credit card payment calculator
months and total interest
PPavilion
POST /fin/credit-card-payment$0.002
⚙️ Developer UtilitiesFree
Credit spread calculator
bond yield vs Treasury in basis points
Aabuela
POST /fin/credit-spread$0.002
⚙️ Developer UtilitiesFree
Credit utilization calculator
total balances vs credit limits
PPavilion
POST /fin/credit-utilization$0.002
⚙️ Developer UtilitiesFree
Cross-price elasticity calculator
XED from quantity and price
Aabuela
POST /fin/cross-price-elasticity$0.002
⚙️ Developer UtilitiesFree
CTR calculator
click-through rate from clicks and impressions
PPavilion
POST /fin/ctr$0.002
⚙️ Developer UtilitiesFree
Currency forward calculator
FX from spot, rates and tenor
Aabuela
POST /fin/currency-forward$0.002
⚙️ Developer UtilitiesFree
Customer effort score calculator
average CES from ratings
PPavilion
POST /fin/customer-effort-score$0.002
⚙️ Developer UtilitiesFree
Cyber Monday calculator
sale price and savings from discount
PPavilion
POST /fin/cyber-monday$0.002
⚙️ Developer UtilitiesFree
DART rate calculator
OSHA days away cases per 100 workers
Aabuela
POST /fin/dart-rate$0.002
⚙️ Developer UtilitiesFree
Days inventory outstanding calculator
DIO from inventory and COGS
PPavilion
POST /fin/days-inventory-outstanding$0.002
⚙️ Developer UtilitiesFree
DSO calculator
days sales outstanding from AR and credit sales
Aabuela
POST /fin/days-sales-outstanding$0.002
⚙️ Developer UtilitiesFree
DCF calculator
discounted cash flow present value
PPavilion
POST /fin/dcf$0.002
⚙️ Developer UtilitiesFree
Deadweight loss calculator
triangle from price and quantity change
Aabuela
POST /fin/deadweight-loss$0.002
⚙️ Developer UtilitiesFree
Total debt calculator
short-term, long-term, fixed liabilities
PPavilion
POST /fin/debt$0.002
⚙️ Developer UtilitiesFree
Debt avalanche calculator
payoff order and total interest
Aabuela
POST /fin/debt-avalanche$0.002
⚙️ Developer UtilitiesFree
Debt consolidation calculator
new payment and interest savings
PPavilion
POST /fin/debt-consolidation$0.002
⚙️ Developer UtilitiesFree
Debt payoff calculator
months to payoff and total interest
Aabuela
POST /fin/debt-payoff$0.002
⚙️ Developer UtilitiesFree
Debt snowball calculator
payoff order and months to clear
PPavilion
POST /fin/debt-snowball$0.002
⚙️ Developer UtilitiesFree
Debt-to-asset ratio calculator
leverage from total liabilities and assets
Aabuela
POST /fin/debt-to-asset$0.002
⚙️ Developer UtilitiesFree
Debt-to-capital ratio calculator
total debt over capital
Aabuela
POST /fin/debt-to-capital$0.002
⚙️ Developer UtilitiesFree
Debt-to-equity calculator
D/E from liabilities and equity
PPavilion
POST /fin/debt-to-equity$0.002
⚙️ Developer UtilitiesFree
Defensive interval ratio calculator
days covered by liquid assets
Aabuela
POST /fin/defensive-interval-ratio$0.002
⚙️ Developer UtilitiesFree
Deferred annuity calculator
present value of delayed payments
PPavilion
POST /fin/deferred-annuity$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 — 7500+ 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.

Recharge balance