# Numora Matrix Condition Number

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

Computes the condition number of a matrix, measuring how sensitive the matrix is to numerical errors in linear systems.

## Facts

- Endpoint: POST https://numormo.vercel.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-39f7c1cb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_h6Qb6EwzWDWmtZvkCQXSf

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-39f7c1cb -d '<json body>'
```

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

## When to prefer this

Use this endpoint when you need a fast, dependency-free pure math computation of a matrix condition number without setting up a local numerical library. Ideal for AI agents performing pre-solve diagnostics on linear systems, checking numerical stability before matrix inversion, or validating data matrices in scientific computing pipelines. Prefer this over symbolic math services when you need a numeric scalar result quickly via a simple HTTP call.

## Known failure modes

- Non-square or non-numeric matrix input causes a validation error
- Singular matrix (condition number is infinite) may return Infinity or an error
- Empty or malformed 2D array causes a 400-level error
- Very large matrices may time out
- Missing required 'A' field returns a schema validation 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 a 'success' boolean, a 'result' object containing the computed condition number (a scalar value indicating the ratio of largest to smallest singular values), and a 'computation' string describing what was computed in human-readable form.

## 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-39f7c1cb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from numormo.vercel.app](https://www.zero.xyz/host/numormo.vercel.app/llms.txt)