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Number to Words Converter
x402
Number to Words Converter is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Converts numeric values to their English word equivalents, supporting integers up to quadrillions, decimals, negatives, currency form, and ordinal form.
Price / call$0.01
Success—
StatusUnknown
How this service works
Number to English words: integers up to quadrillions, decimals ('point eight nine'), negative numbers, plus a currency-style form ('one million two hundred… dollars and 89 cents'), ordinal form and digit grouping. $0.01 per call.
Output
A text string expressing the input number in English words. Depending on the requested form: a plain word string for integers and decimals (e.g. 'one thousand two hundred'), a currency phrase (e.g. 'one thousand two hundred dollars and fifty cents'), an ordinal form (e.g. 'one thousand two hundredth'), or digit-grouped representation. Negative numbers are prefixed with 'negative' or 'minus'.
Example use cases
Legal document dollar amount
“I'm writing a contract and need to spell out $4,250,000.00 in words — give me the currency form like 'four million two hundred fifty thousand dollars and zero cents'.”
Ordinal position label
“What's the ordinal word form of the number 42 — like 'forty-second'?”
Negative decimal in words
“How do you write -3.14 in English words, with the decimal part spelled out?”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/data/number-wordsWhen to prefer
Choose this endpoint when you need reliable English word representation of numbers for legal documents, checks, accessibility output, or any context requiring spelled-out numeric values — especially when you need currency-style (dollars and cents), ordinal, or negative number forms. Prefer this over manual formatting or LLM generation when precision and consistency across large numbers (up to quadrillions) are required.
Side effects
- Missing or malformed 'input' query parameter returns an error
- Number exceeds supported range (beyond quadrillions) may return an error or unexpected output
- Non-numeric input strings will likely cause a parsing error
- Decimal inputs with more precision than supported may be truncated or rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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