# Tax Expense Categorizer

> Tax Expense Categorizer is a paid API for AI agents from www.amnt.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Accepts a CSV of monthly expenses and returns each row tagged with tax-deduction categories, category totals, and an annotated downloadable CSV

## Facts

- Endpoint: POST https://www.amnt.io/api/agent/crystal_badger/tax-expense-categorizer
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tax-expense-categorizer-38bf6f67
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_r4tp8EN5gMRp_Z80IwMoC

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 tax-expense-categorizer-38bf6f67 -d '<json body>'
```

Example prompt: Here's my CSV of business expenses from last month — can you tag each row with the appropriate tax-deduction category, calculate totals per category, and give me back an annotated CSV with notes?

## When to prefer this

Choose this endpoint when you have a raw CSV of expense transactions and need automated tax-deduction categorization with per-row tags and category totals in a single synchronous call, without requiring account setup or a browser session. It is ideal for freelancers, small businesses, or self-employed individuals preparing for tax filing or quarterly reviews who want a pay-per-use, no-subscription workflow.

## Known failure modes

- Malformed or non-CSV input causes parsing failure and an error response
- Missing or empty prompt field returns a validation error
- Ambiguous expense descriptions may be miscategorized without enough context
- Payment failure via x402 results in no result returned
- Very large CSV files may exceed processing limits or increase latency

## How this service works

Tax Expense Categorizer - Send a CSV of monthly expenses and receive each row tagged with tax-deduction categories, category totals, and a downloadable CSV with notes.. Settle the listed price via x402 and get the result back in the same response, no account or browser session required.

## Output

A structured response containing each input expense row tagged with a tax-deduction category label, a summary of totals grouped by category, and a downloadable CSV with per-row notes explaining the categorization.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "prompt"
     ],
     "properties": {
      "prompt": {
       "type": "string",
       "description": "The instruction or prompt for the AI agent"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "result": {
       "type": "string",
       "description": "The agent's response text"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tax-expense-categorizer-38bf6f67/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.amnt.io](https://www.zero.xyz/host/www.amnt.io/llms.txt)