# Break-Even Analysis Calculator

> Break-Even Analysis Calculator is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).

Calculates the break-even point (units and revenue) for a product given fixed costs, price per unit, and variable cost per unit, along with contribution margin and margin ratio.

## Facts

- Endpoint: POST https://agent402.tools/api/break-even
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/break-even-analysis-calculator-6ec52c54
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3LNrk7hqgv5WC_m8LHkqE

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 break-even-analysis-calculator-6ec52c54 -d '<json body>'
```

Example prompt: What's the break-even point for my product if my fixed costs are $50,000, I sell each unit for $25, and my variable cost per unit is $10? Give me the break-even units, revenue, and contribution margin.

## When to prefer this

Use this endpoint when you need a quick, accurate break-even computation without building the formula yourself — especially when you already have fixed cost, selling price, and variable cost per unit ready. Prefer it over spreadsheet logic or manual calculation when the result needs to be embedded programmatically in a financial workflow or agent response.

## Known failure modes

- pricePerUnit equals variableCostPerUnit causing division by zero (zero contribution margin)
- pricePerUnit less than variableCostPerUnit resulting in negative contribution margin and nonsensical break-even
- missing required fields (fixedCost, pricePerUnit, variableCostPerUnit) returning a 400 or validation error
- non-numeric values passed for cost fields returning a schema validation error
- payment failure via x402 protocol returning 402 Payment Required

## How this service works

Break-even point for a product: the units and revenue at which total revenue covers fixed plus variable costs. Also returns contribution margin and margin ratio.

## Output

Returns the break-even point expressed as number of units and total revenue required, along with the contribution margin per unit and the contribution margin ratio as a decimal or percentage.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "fixedCost": {
   "type": "number",
   "description": "Total fixed cost"
  },
  "pricePerUnit": {
   "type": "number",
   "description": "Selling price per unit"
  },
  "variableCostPerUnit": {
   "type": "number",
   "description": "Variable cost per unit"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "breakEvenUnits": 500,
  "breakEvenRevenue": 25000,
  "contributionMargin": 20,
  "contributionMarginRatio": 0.4
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/break-even-analysis-calculator-6ec52c54/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent402.tools](https://www.zero.xyz/host/agent402.tools/llms.txt)