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
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TelegramLive
iOS & AndroidBuilding
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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
Deferred payment loan calculator
lump sum due at maturity
Aabuela
POST /fin/deferred-payment-loan$0.002
⚙️ Developer UtilitiesFree
Depreciation calculator
periodic amount and book-value schedule
PPavilion
POST /fin/depreciation$0.002
⚙️ Developer UtilitiesFree
Direct material price variance
(AP − SP) × quantity purchased
Aabuela
POST /fin/direct-material-price-variance$0.002
⚙️ Developer UtilitiesFree
Discount rate calculator
rate per period from PV, FV, and n
PPavilion
POST /fin/discount-rate$0.002
⚙️ Developer UtilitiesFree
Discretionary income calculator
remaining after taxes and essentials
Aabuela
POST /fin/discretionary-income$0.002
⚙️ Developer UtilitiesFree
Dividend discount model
Gordon growth value per share
PPavilion
POST /fin/divdend-discount-model$0.002
⚙️ Developer UtilitiesFree
Dividend calculator
DPS and yield from total cash and shares
Aabuela
POST /fin/dividend$0.002
⚙️ Developer UtilitiesFree
Double discount calculator
two successive percents, final price
PPavilion
POST /fin/double-discount$0.002
⚙️ Developer UtilitiesFree
Down payment calculator
cash needed from home price
Aabuela
POST /fin/down-payment$0.002
⚙️ Developer UtilitiesFree
Dream come true calculator
shortfall or surplus to the goal
PPavilion
POST /fin/dream-come-true$0.002
⚙️ Developer UtilitiesFree
DSCR calculator
debt service coverage ratio from NOI
Aabuela
POST /fin/dscr$0.002
⚙️ Developer UtilitiesFree
DTI calculator
debt-to-income percent from monthly debt
PPavilion
POST /fin/dti$0.002
⚙️ Developer UtilitiesFree
DuPont analysis calculator
ROE from margin, turnover, leverage
Aabuela
POST /fin/dupont-analysis$0.002
⚙️ Developer UtilitiesFree
EAR calculator
effective annual rate from a nominal rate
PPavilion
POST /fin/ear$0.002
⚙️ Developer UtilitiesFree
Early retirement calculator
nest egg from expenses and SWR
Aabuela
POST /fin/early-retirement$0.002
⚙️ Developer UtilitiesFree
Earned value management
CV, SV, CPI and SPI from PV, EV, AC
Aabuela
POST /fin/earned-value-management$0.002
⚙️ Developer UtilitiesFree
Earnest money calculator
deposit from purchase price and percent
PPavilion
POST /fin/earnest-money$0.002
⚙️ Developer UtilitiesFree
EBIT calculator
earnings before interest and taxes from revenue
PPavilion
POST /fin/ebit$0.002
⚙️ Developer UtilitiesFree
EBITDA multiple calculator
EV ÷ EBITDA valuation, free
Aabuela
POST /fin/ebitda-multiple$0.002
⚙️ Developer UtilitiesFree
EBT calculator
earnings before tax from revenue and expenses
PPavilion
POST /fin/ebt$0.002
⚙️ Developer UtilitiesFree
Economic injury disaster loan calculator
max amount from expenses
Aabuela
POST /fin/economic-injury-disaster-loan$0.002
⚙️ Developer UtilitiesFree
EVA calculator
economic value added from NOPAT and WACC
PPavilion
POST /fin/economic-value-added$0.002
⚙️ Developer UtilitiesFree
Effective annual yield
annualize a holding-period yield
Aabuela
POST /fin/effective-annual-yield$0.002
⚙️ Developer UtilitiesFree
Effective corporate tax rate calculator
tax expense over pretax income
PPavilion
POST /fin/effective-corporate-tax-rate$0.002
⚙️ Developer UtilitiesFree
Effective duration calculator
bond price sensitivity to yield
Aabuela
POST /fin/effective-duration$0.002
⚙️ Developer UtilitiesFree
Effective interest rate calculator
implied rate from PV, FV, n
PPavilion
POST /fin/effective-interest-rate$0.002
⚙️ Developer UtilitiesFree
ELSS calculator
projected maturity from principal and years
Aabuela
POST /fin/elss$0.002
⚙️ Developer UtilitiesFree
EMI calculator
equated monthly installment from principal
PPavilion
POST /fin/emi$0.002
⚙️ Developer UtilitiesFree
EMV calculator
expected monetary value from payoffs
Aabuela
POST /fin/emv$0.002
⚙️ Developer UtilitiesFree
Ending inventory calculator
closing stock from purchases and COGS
PPavilion
POST /fin/ending-inventory$0.002
⚙️ Developer UtilitiesFree
Enterprise value calculator
EV from market cap, debt and cash
Aabuela
POST /fin/enterprise-value$0.002
⚙️ Developer UtilitiesFree
EOQ calculator
economic order quantity from demand and costs
PPavilion
POST /fin/eoq$0.002
⚙️ Developer UtilitiesFree
EPF calculator
employee provident fund balance at retirement
Aabuela
POST /fin/epf$0.002
⚙️ Developer UtilitiesFree
EPS calculator
earnings per share from net income and shares
PPavilion
POST /fin/eps$0.002
⚙️ Developer UtilitiesFree
EPS growth calculator
rate from beginning and ending EPS
Aabuela
POST /fin/eps-growth$0.002
⚙️ Developer UtilitiesFree
Equivalent rate calculator
annual rate to another frequency
PPavilion
POST /fin/equivalent-rate$0.002
⚙️ Developer UtilitiesFree
EV to sales calculator
EV ÷ annual revenue multiple, free
Aabuela
POST /fin/ev-to-sales$0.002
⚙️ Developer UtilitiesFree
Exit rate calculator
annualize last-month recurring revenue
PPavilion
POST /fin/exit-rate$0.002
⚙️ Developer UtilitiesFree
Expected return calculator
weighted portfolio return from asset weights
Aabuela
POST /fin/expected-return$0.002
⚙️ Developer UtilitiesFree
Expected utility calculator
probability-weighted average of utilities
PPavilion
POST /fin/expected-utility$0.002
⚙️ Developer UtilitiesFree
Expense ratio calculator
fund TER from expenses and average AUM
Aabuela
POST /fin/expense-ratio$0.002
⚙️ Developer UtilitiesFree
FFO calculator
funds from operations from net income and D&A
PPavilion
POST /fin/ffo$0.002
⚙️ Developer UtilitiesFree
FHA loan calculator
monthly payment including MIP
Aabuela
POST /fin/fha-loan$0.002
⚙️ Developer UtilitiesFree
Fibonacci retracement calculator
23.6% to 78.6% price levels
PPavilion
POST /fin/fibonacci-retracement$0.002
⚙️ Developer UtilitiesFree
FICA tax calculator
Social Security and Medicare from wages
Aabuela
POST /fin/fica-tax$0.002
⚙️ Developer UtilitiesFree
FIFO inventory calculator
ending inventory and COGS from lots
PPavilion
POST /fin/fifo-for-inventories$0.002
⚙️ Developer UtilitiesFree
Finance charge calculator
total cost of credit on a loan
Aabuela
POST /fin/finance-charge$0.002
⚙️ Developer UtilitiesFree
Financial leverage ratio calculator
D/E from total debt and equity
PPavilion
POST /fin/financial-leverage-ratio$0.002
⚙️ Developer UtilitiesFree
FIRE calculator
target portfolio and years to independence
Aabuela
POST /fin/fire$0.002
⚙️ Developer UtilitiesFree
Fisher effect calculator
real interest rate from nominal and inflation
PPavilion
POST /fin/fisher-effect$0.002
⚙️ Developer UtilitiesFree
Fisher equation calculator
real interest rate from inflation
Aabuela
POST /fin/fisher-equation$0.002
⚙️ Developer UtilitiesFree
Fixed asset turnover calculator
net sales over average net PP&E
PPavilion
POST /fin/fixed-asset-turnover$0.002
⚙️ Developer UtilitiesFree
Fixed deposit calculator
maturity amount from principal, rate, tenure
Aabuela
POST /fin/fixed-deposit$0.002
⚙️ Developer UtilitiesFree
Florida overtime calculator
1.5× after 40 hours in a workweek
PPavilion
POST /fin/florida-overtime$0.002
⚙️ Developer UtilitiesFree
Florida sales tax calculator
6% + county surtax, tax and total
Aabuela
POST /fin/florida-sales-tax$0.002
⚙️ Developer UtilitiesFree
Forward premium calculator
annualized FX premium or discount
PPavilion
POST /fin/forward-premium$0.002
⚙️ Developer UtilitiesFree
Forward rate calculator
implied rate from two spot rates
Aabuela
POST /fin/forward-rate$0.002
⚙️ Developer UtilitiesFree
Free cash flow calculator
FCF from operating cash flow minus capex
PPavilion
POST /fin/free-cash-flow$0.002
⚙️ Developer UtilitiesFree
Free cash flow to equity calculator
FCFE from NI, CapEx
Aabuela
POST /fin/free-cash-flow-to-equity$0.002
⚙️ Developer UtilitiesFree
FCFF calculator
free cash flow to the firm from EBIT
PPavilion
POST /fin/free-cash-flow-to-firm$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