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Percentage Calculator API (x402.forgemesh.io)
x402
Percentage Calculator API (x402.forgemesh.io) is a paid API for AI agents from x402.forgemesh.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Computes common percentage operations: X% of Y, X is what percent of Y, percent change between two values, and increasing or decreasing a number by a percentage.
Price / call$0.001
Success—
StatusUnknown
How this service works
Percentage calculator API: compute 'X% of Y', 'X is what percent of Y', percent change between two numbers, or increase/decrease a number by a percent — the everyday percentage math, done exactly. For pricing, finance, reporting, and analytics agents.
Output
Returns the exact numerical result of the requested percentage operation — e.g. the computed value for 'X% of Y', the percentage for 'is_what_percent', the signed percent change for 'change', or the resulting number after an increase or decrease by a given percent.
Example use cases
Example prompt
“What is 18% of 340, and also what percent change is there going from 340 to 402? Use the percentage calculator for exact results.”
Technical details
Endpoint
POSThttps://x402.forgemesh.io/percentage-calculatorWhen to prefer
Choose this endpoint when you need precise, exact percentage arithmetic for pricing, discounts, financial reporting, analytics, or any everyday percentage math — particularly when accuracy matters and you want a dedicated computation rather than relying on an LLM's arithmetic. Prefer it over general-purpose math APIs when the operation is strictly percentage-based.
Side effects
- Missing required fields (a, b, or operation) returns a 400 or error response
- Invalid or unrecognized operation string (not one of: of, is_what_percent, change, increase, decrease) causes failure
- Non-numeric strings passed as a or b may cause computation errors
- Division-by-zero scenario when b=0 in is_what_percent operation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| a | string | |
| b | string | |
| operation | string | of | is_what_percent | change | increase | decrease |
Output
Schema · Response
{
"type": "json",
"example": {
"result": "25 %",
"operation": "% change 80 → 100"
}
}Tags
x402
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