# Bounty Engineer Cost Break-Even Calculator

> Bounty Engineer Cost Break-Even Calculator is a paid API for AI agents from bounty-engineer-x402-prod.onrender.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-12).

Computes and ranks API providers by cost-per-expected-success to find the break-even optimal provider for a given call volume.

## Facts

- Endpoint: POST https://bounty-engineer-x402-prod.onrender.com/v1/cost-break-even?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bounty-engineer-cost-break-even-calculator-54a92f04
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_envE31cP6V5lAhKHDCzvR

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 bounty-engineer-cost-break-even-calculator-54a92f04 -d '<json body>'
```

Example prompt: Compare these two API providers for 1000 calls — provider A charges $0.01 per call with 99% success and no setup fee, provider B charges $0.005 per call with 95% success and a $2 fixed cost — which one is cheaper in total and per successful result?

## When to prefer this

Use this endpoint when an AI agent needs to choose between multiple API providers with different pricing structures and reliability profiles, especially when success rate variation makes raw unit price misleading. Ideal for pre-deployment cost planning or dynamic routing decisions at scale.

## Known failure modes

- Missing or empty providers array returns an error
- Invalid or non-integer calls value causes a validation failure
- Providers with missing pricing or success_rate fields may be excluded or cause errors
- Requests without valid x402 payment header are rejected with HTTP 402

## How this service works

Machine-buyable infrastructure for autonomous agents: API cost routing, margin optimization, funding-rate data, webpage extraction, result verification, spend controls, retry planning, state, tender search and GitHub bounty intelligence.

## Output

Returns a ranked list of providers sorted by cost-per-expected-success, identifying the single best provider for the given call volume, along with total cost, unit price, fixed cost, success rate, and the break-even mode label for each candidate.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "calls": {
   "type": "integer"
  },
  "providers": {
   "type": "array"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "best": {
   "id": "b",
   "success_rate": 0.95,
   "fixed_cost_usd": 2,
   "total_cost_usd": 7,
   "unit_price_usd": 0.005,
   "cost_per_expected_success_usd": 0.007368
  },
  "mode": "cost_break_even",
  "calls": 1000,
  "ranking": [
   {
    "id": "b",
    "success_rate": 0.95,
    "fixed_cost_usd": 2,
    "total_cost_usd": 7,
    "unit_price_usd": 0.005,
    "cost_per_expected_success_usd": 0.007368
   },
   {
    "id": "a",
    "success_rate": 0.99,
    "fixed_cost_usd": 0,
    "total_cost_usd": 10,
    "unit_price_usd": 0.01,
    "cost_per_expected_success_usd": 0.010101
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bounty-engineer-cost-break-even-calculator-54a92f04/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bounty-engineer-x402-prod.onrender.com](https://www.zero.xyz/host/bounty-engineer-x402-prod.onrender.com/llms.txt)