# SignalDesk AI – Stats Summary

> SignalDesk AI – Stats Summary 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 descriptive statistics (min, max, mean, median, sum, count, standard deviation) over a provided array of numeric values

## Facts

- Endpoint: POST https://x402-agent.kariguetoazul.workers.dev/api/stats/summary?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-stats-summary-102795f7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YsuRcdQVdHfYP4Q_cpFN-

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-stats-summary-102795f7 -d '<json body>'
```

Example prompt: Can you compute summary statistics — min, max, mean, median, sum, count, and standard deviation — for these numbers: [12, 7, 3, 22, 15, 9, 6]?

## When to prefer this

Choose this endpoint when you need a complete set of basic descriptive statistics computed in a single call rather than implementing your own math or calling multiple endpoints. It is well-suited for quick numeric summarization of up to 1000 observations where you need min, max, mean, median, sum, count, and population standard deviation together.

## Known failure modes

- Empty or missing 'values' array returns a validation error
- Array exceeds 1000 items — rejected by schema
- Non-numeric values in the array cause a parse or validation error
- Values outside the allowed range (±1e15) are rejected
- Payment failure via x402 protocol blocks the request

## 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 count (number of values), sum, min, max, mean, median, and population_stddev for the submitted array of numbers

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "values": {
   "type": "array",
   "items": {
    "type": "number",
    "maximum": 1000000000000000,
    "minimum": -1000000000000000
   },
   "maxItems": 1000,
   "minItems": 1,
   "description": "Up to 1000 finite observations."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "max": 5,
  "min": 1,
  "sum": 15,
  "mean": 3,
  "count": 5,
  "median": 3,
  "population_stddev": 1.414213562373095
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signaldesk-ai-stats-summary-102795f7/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)