# Numora Matrix Condition Number

> Numora Matrix Condition Number is a paid API for AI agents from numormor.netlify.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Computes the condition number of a matrix to assess its numerical stability and sensitivity to perturbations

## Facts

- Endpoint: POST https://numormor.netlify.app/api/matrix/condition-number
- 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-matrix-condition-number-ffb8ab1f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_J_8oMMEVRdDUtYqaXsu_P

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-matrix-condition-number-ffb8ab1f -d '<json body>'
```

Example prompt: What's the condition number of this matrix: [[4, 3], [6, 3]]? I want to know if it's well-conditioned before I try to solve a linear system with it.

## When to prefer this

Use this endpoint when you need to numerically assess the conditioning of a matrix before performing operations like inversion or solving linear systems, and you want a pure-math, dependency-free computation via micropayment without spinning up a local numerical library.

## Known failure modes

- Matrix A is not provided — returns error
- Matrix is not a valid 2D array — returns validation error
- Matrix is singular or near-singular — may return infinity or very large condition number
- Non-square matrix passed where square is required — may return error
- Payment not included or insufficient — returns 402 Payment Required
- Network timeout or server error — returns 5xx

## 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 a boolean success flag, a result object containing the computed condition number value, and a human-readable computation string describing what was calculated.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "A"
 ],
 "properties": {
  "A": {
   "type": "array",
   "description": "Matrix (2D 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-matrix-condition-number-ffb8ab1f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
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