# Numora Matrix Condition Number

> Numora Matrix Condition Number is a paid API for AI agents from numomo.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Computes the condition number of a matrix, indicating how sensitive a linear system is to numerical errors or perturbations.

## Facts

- Endpoint: POST https://numomo.vercel.app/api/matrix/condition-number
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/numora-matrix-condition-number-ae82d869
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HdN4r-FHtLM6SFa89s8bE

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-ae82d869 -d '<json body>'
```

Example prompt: What is the condition number of the matrix [[3, 1], [1, 2]]? I want to know how numerically stable it is before solving a linear system.

## When to prefer this

Choose this endpoint when you need a pure, dependency-free numerical computation of a matrix's condition number without setting up a local math library. Ideal for AI agents performing linear algebra checks in pipelines, especially when assessing whether a matrix is suitable for numerical methods like solving linear equations or inverting. Particularly useful in environments where installing scipy or numpy is impractical.

## Known failure modes

- Non-square or singular matrix may return an error or infinity
- Malformed 2D array input (jagged rows, non-numeric values) causes validation failure
- Singular matrix (determinant zero) may yield infinite or undefined condition number
- Empty matrix or scalar input rejected as invalid

## 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 (a scalar value indicating matrix conditioning — values close to 1 are well-conditioned, very large values indicate ill-conditioning or near-singularity), and a human-readable computation description string.

## 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-ae82d869/health.json
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