# Numora Statistics Sampling Endpoint

> Numora Statistics Sampling Endpoint is a paid API for AI agents from numorapoi.orbonomy.xyz, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).

Performs statistical sampling computations on a dataset, returning a sample of size n using a specified sampling method

## Facts

- Endpoint: POST https://numorapoi.orbonomy.xyz/api/statistics/sampling
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/numora-statistics-sampling-endpoint-99df1124
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ClyTOzyzV1ewi1XvWvc2R

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 numora-statistics-sampling-endpoint-99df1124 -d '<json body>'
```

Example prompt: Using pure math computation, draw a random sample of 15 values from this dataset [4, 7, 2, 9, 1, 5, 8, 3, 6, 10, 12, 14, 11, 13, 15, 16, 17, 18, 19, 20] using systematic sampling — no external libraries, just the math.

## When to prefer this

Use this endpoint when you need deterministic, dependency-free statistical sampling on a raw numeric dataset and want micropayment-per-call pricing. Prefer over full statistical libraries when you only need sampling without a full data science stack.

## Known failure modes

- Missing required field 'n' returns 400 error
- Missing required field 'data' returns 400 error
- n larger than data array length may return error or require replacement sampling
- Invalid method string may fall back to default or return 400
- Payment not included results in 402 Payment Required with x402 headers

## How this service works

100 pure math computation endpoints for AI agents. Statistics, financial math, linear algebra, equation solving, calculus, number theory, sequence generation, and unit conversions. Zero external dependencies. x402 micropayments on Base.

## Output

Returns a JSON object with success:true, a result object containing the sampled subset, and a human-readable computation field describing what was calculated (e.g. 'Drew systematic sample of n=15 from population of 20').

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "n",
  "data"
 ],
 "properties": {
  "n": {
   "type": "integer"
  },
  "data": {
   "type": "array"
  },
  "method": {
   "enum": [
    "simple",
    "systematic",
    "bootstrap"
   ],
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "success",
  "result",
  "computation"
 ],
 "properties": {
  "result": {
   "type": "object",
   "description": "Computation result varies by endpoint"
  },
  "success": {
   "type": "boolean",
   "description": "Always true on success"
  },
  "computation": {
   "type": "string",
   "description": "Human-readable description of what was computed"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/numora-statistics-sampling-endpoint-99df1124/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from numorapoi.orbonomy.xyz](https://www.zero.xyz/host/numorapoi.orbonomy.xyz/llms.txt)