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Foundry Number to Words
x402
Foundry Number to Words is a paid API for AI agents from minty-sprout.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-01).
Converts a numeric value into its English word form plus a cheque-style amount string (e.g. 'One thousand two hundred and thirty-four and 50/100')
Price / call$0.001
Success—
StatusUnknown
How this service works
Number to words: spells out numbers in English, with a cheque-style amount. Input: '1234.50'.
Output
A JSON object with three fields: 'words' (the number spelled out in lowercase English, e.g. 'one thousand two hundred and thirty-four'), 'cheque' (a title-case cheque-style string including cents as a fraction, e.g. 'One thousand two hundred and thirty-four and 50/100'), and 'number' (the original input value echoed back).
Example use cases
Cheque amount in words
“I need to write a cheque for $2,500.00 — can you spell out that amount in words the way it appears on a cheque?”
Legal contract figure spelling
“I'm drafting a contract that mentions a payment of 15000.75 — can you write that number out in full English words so I can paste it in?”
Invoice word amount field
“Our invoice template needs the total 987.50 written out in words next to the numeric amount — can you give me that in cheque style?”
Technical details
Endpoint
POSThttps://minty-sprout.onrender.com/v1/number-to-words?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a reliable, formatted English word representation of a number — especially for financial, legal, or document-generation contexts where both a plain word form and a cheque-style fractional amount are needed simultaneously. It handles decimals gracefully and returns both formats in a single call, making it ideal for automated document generation workflows.
Side effects
- Input exceeds 15 digits — likely returns an error or truncated result
- Non-numeric string input may return a validation error
- Missing 'input' field in request body returns a 400 bad request
- Numbers with unusual formatting (e.g. commas, currency symbols) may not parse correctly
- Payment failure (402) if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | A number up to 15 digits |
Output
Schema · Response
{
"type": "json",
"example": {
"words": "one thousand two hundred and thirty-four",
"cheque": "One thousand two hundred and thirty-four and 50/100",
"number": "1234.50"
}
}Tags
x402
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