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Numora Tax Computation API
x402
Numora Tax Computation API is a paid API for AI agents from numomo.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).
Computes progressive tax liability given income and tax brackets, returning the total tax owed and effective tax rate
Price / call$0.1
Success—
StatusUnknown
How this service works
100 pure math computation endpoints for AI agents. Statistics, financial math, linear algebra, equation solving, calculus, number theory, sequence generation, and unit conversions. Zero external dependencies. x402 micropayments on Base.
Output
Returns a JSON object with success flag, a result object containing total tax owed, effective tax rate, and a per-bracket breakdown, plus a human-readable computation string describing what was calculated.
Example use cases
Freelancer annual tax estimate
“I made $72,000 freelancing this year. Using brackets of 10% up to $11,600, 12% up to $47,150, and 22% up to $100,525, how much income tax do I owe?”
Salary negotiation tax impact
“If I get a raise to $130,000, what would my tax bill be under brackets of 10% to $11,600, 12% to $47,150, 22% to $100,525, and 24% to $191,950?”
Custom bracket scenario for tax planning
“Run a tax calculation for $55,000 of income using a flat two-bracket system: 15% up to $30,000 and 25% on everything above that.”
Technical details
Endpoint
POSThttps://numomo.vercel.app/api/financial/taxWhen to prefer
Choose this endpoint when you need a fast, self-contained, server-side progressive tax computation without relying on external tax databases or jurisdiction-specific APIs. It is ideal for custom bracket structures, hypothetical tax scenarios, financial planning tools, or when you want pure deterministic math with no external dependencies. Prefer it over full tax-filing APIs when you only need the computation, not filing or compliance workflows.
Side effects
- Missing required field 'income' returns a validation error
- Missing or malformed 'brackets' array causes a 400-level error
- Non-numeric income value causes schema validation failure
- Empty brackets array may return zero tax or an error
- Payment failure via x402 micropayment returns a 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| incomerequired | number | |
| bracketsrequired | array |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| resultrequired | object | Computation result varies by endpoint |
| successrequired | boolean | Always true on success |
| computationrequired | string | Human-readable description of what was computed |
Tags
x402
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