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PennyRail Number Round
x402
PennyRail Number Round is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-30).
Rounds a number to a specified precision via a paid microtransaction API endpoint
Price / call$0.001
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns a JSON object containing the rounded numeric result of the input value processed by the round function.
Example use cases
Rounding financial figures to cents
“I need to round $47.8763 to exactly two decimal places for a payment calculation — can you run that through the PennyRail rounding endpoint?”
Normalizing sensor measurement data
“Take this sensor reading of 98.66712 and round it to one decimal place so it matches the format our dashboard expects.”
Preparing integers from float scores
“I have a score of 7.49 and I need it rounded to the nearest whole number before I store it — can you do that?”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/p/nano/number.round--round-number?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a lightweight, pay-per-call rounding computation without standing up your own math service, or when operating inside an x402-compatible micropayment workflow where per-call billing is acceptable. Best suited for isolated, single-number rounding tasks rather than batch numerical processing.
Side effects
- Missing or malformed 'input' object in request body returns a validation error
- Non-numeric input value may cause computation failure or unexpected output
- Payment failure via x402 protocol results in 402 status and no computation performed
- Network or Vercel infrastructure downtime returns 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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