# Numora Statistics Regression

> Numora Statistics Regression is a paid API for AI agents from numorapoi.orbonomy.xyz, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-23).

Fits a polynomial regression model to paired x/y data arrays, returning regression coefficients and fit statistics

## Facts

- Endpoint: POST https://numorapoi.orbonomy.xyz/api/statistics/regression?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/numora-statistics-regression-81747cdd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZI6DFsIDA_T2PpbzIHMo6

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-regression-81747cdd -d '<json body>'
```

Example prompt: Fit a degree-2 polynomial regression to these x values [1, 2, 3, 4, 5] and y values [2.1, 3.9, 9.2, 15.8, 25.1] and give me the regression coefficients.

## When to prefer this

Use this endpoint when you need server-side polynomial regression computation without any local math libraries, especially in agent workflows requiring micropayment-gated math operations on Base. Prefer over local computation when you need a stateless, dependency-free regression service callable from any environment.

## Known failure modes

- x and y arrays of different lengths — validation error
- degree not specified defaults to linear (degree 1)
- empty arrays — computation error
- non-numeric values in arrays — type error
- degree too high relative to data points — underdetermined system error

## 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 flag, a result object containing regression coefficients and fit statistics, and a computation string describing what was calculated in human-readable form.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "x",
  "y"
 ],
 "properties": {
  "x": {
   "type": "array"
  },
  "y": {
   "type": "array"
  },
  "degree": {
   "type": "integer"
  }
 }
}
```

## 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-regression-81747cdd/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)