# Numora Tax Computation API

> Numora Tax Computation API is a paid API for AI agents from numormo.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Computes progressive income tax liability given an income value and a set of tax brackets

## Facts

- Endpoint: POST https://numormo.vercel.app/api/financial/tax
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/numora-tax-computation-api-aafbac08
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Sg5DdFV8xAQXOTHsrvoJ4

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability numora-tax-computation-api-aafbac08 -d '<json body>'
```

Example prompt: Calculate the progressive income tax owed on $95,000 using these brackets: 10% on the first $10,000, 22% on $10,001–$40,000, and 32% on anything above $40,000.

## When to prefer this

Prefer this endpoint when you need a lightweight, serverless pure-math tax computation with no external data dependencies — ideal for agents doing financial planning, salary analysis, or tax simulation without needing a full tax platform integration. Best when you already have the bracket structure and want a fast, deterministic result for $0.10 USDC per call.

## Known failure modes

- Missing required 'income' field returns validation error
- Missing or empty 'brackets' array causes computation failure
- Malformed bracket structure (missing rate or threshold fields) returns error
- Negative income values may produce unexpected results
- Payment failure via x402 micropayment returns 402 status before computation

## 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 a boolean success flag, a result object containing the computed tax liability and bracket-by-bracket breakdown details, and a human-readable computation string describing what was calculated.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "income",
  "brackets"
 ],
 "properties": {
  "income": {
   "type": "number"
  },
  "brackets": {
   "type": "array"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "success",
  "result",
  "computation"
 ],
 "properties": {
  "result": {
   "type": "object",
   "description": "Computation result varies by endpoint"
  },
  "success": {
   "type": "boolean",
   "description": "Always true on success"
  },
  "computation": {
   "type": "string",
   "description": "Human-readable description of what was computed"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/numora-tax-computation-api-aafbac08/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from numormo.vercel.app](https://www.zero.xyz/host/numormo.vercel.app/llms.txt)