# SignalDesk AI ROI Calculator

> SignalDesk AI ROI Calculator is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-13).

Computes return on investment (ROI) percentage and profit given an initial cost and proceeds amount

## Facts

- Endpoint: POST https://x402-agent.kariguetoazul.workers.dev/api/finance/roi?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signaldesk-ai-roi-calculator-1ebb06c4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_P-T4qhtWY9q46xqueqoxb

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 signaldesk-ai-roi-calculator-1ebb06c4 -d '<json body>'
```

Example prompt: I invested $50,000 into a marketing campaign and it generated $60,000 in revenue — can you calculate the ROI and profit for me?

## When to prefer this

Choose this endpoint when you need a quick, server-side ROI and profit computation from raw cost and proceeds figures, especially in automated agent workflows where a deterministic calculation is preferable to doing floating-point arithmetic locally. It is ideal for agents that need an audit-friendly, third-party-computed result with a built-in disclaimer, and where a micropayment-per-call model (x402) is acceptable.

## Known failure modes

- Missing required 'cost' or 'proceeds' fields returns a validation error
- Cost of zero or below (exclusiveMinimum:0 enforced) will be rejected
- Proceeds value below 0 will fail schema validation
- Extremely large numbers near the maximum boundary may result in floating-point precision artifacts
- Payment not included or insufficient USDC will result in 402 Payment Required response

## How this service works

Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.

## Output

Returns a JSON object with three fields: roi_percent (the ROI as a percentage, e.g. 20 meaning 20%), profit (the absolute profit as proceeds minus cost, e.g. 20), and a notice disclaimer clarifying the calculation is from supplied inputs only and does not constitute tax, investment, or lending advice.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "cost": {
   "type": "number",
   "maximum": 1000000000000,
   "minimum": -1000000000000000,
   "description": "Positive initial cost.",
   "exclusiveMinimum": 0
  },
  "proceeds": {
   "type": "number",
   "maximum": 1000000000000,
   "minimum": 0,
   "description": "Amount in one consistent currency; floating-point calculation, not an accounting ledger."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "notice": "Calculation from supplied inputs only; no tax, investment or lending advice.",
  "profit": 20,
  "roi_percent": 20
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signaldesk-ai-roi-calculator-1ebb06c4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-agent.kariguetoazul.workers.dev](https://www.zero.xyz/host/x402-agent.kariguetoazul.workers.dev/llms.txt)