# SignalDesk AI Compound Growth Calculator

> SignalDesk AI Compound Growth 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 compound growth of an initial value over a specified number of periods at a given per-period growth rate

## Facts

- Endpoint: POST https://x402-agent.kariguetoazul.workers.dev/api/math/compound-growth?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-compound-growth-calculator-c028c29e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WHexaPpYoI2G289ROpjrg

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-compound-growth-calculator-c028c29e -d '<json body>'
```

Example prompt: What will $50,000 grow to if it compounds at 6.5% per period for 30 periods?

## When to prefer this

Choose this endpoint when you need a straightforward, deterministic compound growth calculation with bounded inputs. It is ideal for financial projections, investment planning, or any exponential growth modeling where you have a fixed initial value, a known per-period rate, and a defined number of periods. It is not suitable for continuous compounding, multi-rate scenarios, or complex financial instruments.

## Known failure modes

- Missing required fields (initial, periods, rate_percent) returns an error
- initial value exceeds maximum of 1,000,000,000,000,000 — returns validation error
- periods exceeds 10,000 — returns validation error
- rate_percent below -100 or above 10,000 — returns validation error
- Network or worker timeout on the Cloudflare Workers edge
- Payment not processed (x402 payment required before response is returned)

## 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

A JSON object containing a single 'result' field with the numeric compounded value after applying the given rate over the specified number of periods to the initial amount (e.g. {"result": 121})

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "initial": {
   "type": "number",
   "maximum": 1000000000000000,
   "minimum": 0,
   "description": "Non-negative number."
  },
  "periods": {
   "type": "integer",
   "maximum": 10000,
   "minimum": 0,
   "description": "Periods."
  },
  "rate_percent": {
   "type": "number",
   "maximum": 10000,
   "minimum": -100,
   "description": "Per-period growth percentage."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": 121
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signaldesk-ai-compound-growth-calculator-c028c29e/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)