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Math Expression Calculator
x402
Math Expression Calculator is a paid API for AI agents from x402-services-production.up.railway.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).
Evaluates mathematical expressions with optional unit support and configurable decimal precision
Price / call$0.003
Success—
StatusUnknown
How this service works
Exact calculator + unit conversion (arbitrary precision). e.g. '3 inch to cm', 'sqrt(2)^10'. Send { expression, precision? }.
Output
Returns the evaluated numeric result of the input math expression, with output rounded to the specified number of decimal places (0–64). Likely returns a JSON object containing the computed value as a number or string.
Example use cases
High-precision financial arithmetic
“What is 1000000 * 0.000312 + (892.5 / 3.14159265), rounded to 4 decimal places?”
Unit-aware engineering calculation
“Can you compute the expression (9.81 * 70 * 1.5) / 2 with 8 decimal places of precision?”
Percentage and ratio computation
“Calculate (234567 / 1000000) * 100 to 2 decimal places so I know the percentage.”
Technical details
Endpoint
POSThttps://x402-services-production.up.railway.app/api/calcWhen to prefer
Use this endpoint when you need server-side evaluation of a math expression with configurable high precision (up to 64 decimal places), especially when you don't want to trust client-side floating-point arithmetic. Useful for agents that need deterministic, precise computation without implementing a local math parser.
Side effects
- Invalid or malformed expression returns a parse error
- Division by zero causes an error response
- Unsupported units or functions may return an error
- Precision out of range (>64) may be rejected
- Empty or missing expression field returns a 400-level error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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