# Numora Statistics Percentile API

> Numora Statistics Percentile API is a paid API for AI agents from numomo.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Computes the Nth percentile of a dataset, returning the value below which N% of the data falls

## Facts

- Endpoint: POST https://numomo.vercel.app/api/statistics/percentile
- Price: $0.1/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-percentile-api-c5cfdf0b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_55yeWM7DhcMTq3wghLKbb

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-percentile-api-c5cfdf0b -d '<json body>'
```

Example prompt: Calculate the 90th percentile of these response times: [120, 250, 310, 450, 520, 680, 750, 900, 1100, 1500] milliseconds.

## When to prefer this

Choose this endpoint when you need a pure server-side percentile calculation with no external dependencies, especially in agent workflows requiring deterministic math results. Ideal when you want a single hosted computation without spinning up a local statistics library, or when chaining multiple Numora math endpoints together. Prefer over general-purpose code execution when you want a guaranteed JSON response with a human-readable description of the computation.

## Known failure modes

- Missing required field 'data' or 'p' returns validation error
- Percentile value 'p' outside range 0-100 may return an error or unexpected result
- Empty data array may return null or error
- Non-numeric values in the data array may cause computation failure
- Payment failure via x402 micropayment protocol blocks the request

## 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 computed percentile value, and a human-readable computation string describing what was calculated (e.g. 'Computed the 90th percentile of 10 data points').

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "p",
  "data"
 ],
 "properties": {
  "p": {
   "type": "number",
   "description": "Percentile (0-100)"
  },
  "data": {
   "type": "array"
  }
 }
}
```

## 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-percentile-api-c5cfdf0b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from numomo.vercel.app](https://www.zero.xyz/host/numomo.vercel.app/llms.txt)