# Automotive Depreciation Calculator

> Automotive Depreciation Calculator is a paid API for AI agents from automotive-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-30).

Projects vehicle value year-by-year using straight-line, declining-balance, or custom schedule depreciation methods, with total loss summary.

## Facts

- Endpoint: GET https://automotive-calc.x402tookit.com/depreciation?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/automotive-depreciation-calculator-c500a128
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7tWzzrvCKmb7N5Lmw5Up-

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 automotive-depreciation-calculator-c500a128
```

Example prompt: What will my $42,000 car be worth each year over the next 8 years using declining-balance depreciation at 20% per year, with a salvage floor of $5,000?

## When to prefer this

Use this endpoint when you need a structured, year-by-year vehicle depreciation projection with configurable methods (straight-line, declining-balance, or custom schedule). Prefer this over generic financial calculators when the user specifically needs automotive resale value modeling, fleet write-down planning, or wants to see granular annual value snapshots with total loss summary.

## Known failure modes

- Missing required parameters (price, years, method) returns validation error
- Invalid method string (not 'straight-line', 'declining-balance', or 'schedule') causes rejection
- years outside 1-30 range fails validation
- ratePercent outside 1-90 range for declining-balance fails
- Malformed schedule string (non-numeric values) causes parse error
- price at or below 0 fails validation

## How this service works

Vehicle value year by year by straight-line, declining-balance or your own yearly percentage drops, with total loss.

## Output

Returns a year-by-year depreciation schedule showing each year's vehicle value, value lost that year, and percentage of original price remaining, plus final value, total loss, average annual loss, and a human-readable summary and verdict.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "price",
      "years",
      "method"
     ],
     "properties": {
      "price": {
       "type": "number",
       "description": "Purchase price, above 0"
      },
      "years": {
       "type": "integer",
       "description": "Years to project, 1 to 30"
      },
      "method": {
       "type": "string",
       "description": "straight-line, declining-balance or schedule"
      },
      "schedule": {
       "type": "string",
       "description": "schedule: yearly % drops of the remaining value, comma separated, for example 20,15,15,12,10 (the last repeats)"
      },
      "ratePercent": {
       "type": "number",
       "description": "declining-balance: yearly % of the remaining value lost, 1 to 90"
      },
      "salvageValue": {
       "type": "number",
       "description": "straight-line: value at the end (default 0); declining-balance: a floor the value will not go below"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "price": {
       "type": [
        "null",
        "number"
       ]
      },
      "years": {
       "type": [
        "null",
        "number"
       ]
      },
      "method": {
       "type": [
        "null",
        "string"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "schedule": {
       "type": [
        "array",
        "null"
     
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/automotive-depreciation-calculator-c500a128/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from automotive-calc.x402tookit.com](https://www.zero.xyz/host/automotive-calc.x402tookit.com/llms.txt)