# Numora Matrix Norm API

> Numora Matrix Norm API is a paid API for AI agents from numorapoi.orbonomy.xyz, paid per call via x402, $0.04/call, status unknown (last checked 2026-09-14).

Computes the norm of a matrix (2D array), supporting multiple norm types, with no external dependencies.

## Facts

- Endpoint: POST https://numorapoi.orbonomy.xyz/api/matrix/norm
- Price: $0.04/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-norm-api-6689c759
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NAiomkDEcZPCFUIKZQqCM

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-norm-api-6689c759 -d '<json body>'
```

Example prompt: Can you compute the Frobenius norm of this matrix: [[1, 2], [3, 4]]?

## When to prefer this

Use this endpoint when you need a fast, dependency-free computation of a matrix norm in any standard type (Frobenius, spectral, infinity, nuclear, etc.). Prefer this over general-purpose compute environments when you want a pure math microservice with micropayment billing and no setup overhead.

## Known failure modes

- Missing required field 'A' — returns validation error
- Non-numeric values in matrix — computation fails
- Non-rectangular matrix (jagged array) — may return error
- Unsupported norm type string — returns error or defaults
- Empty matrix — undefined behavior or error
- Payment not provided or insufficient — 402 Payment Required

## 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

A JSON object with 'success' (boolean), 'result' (object containing the computed norm value), and 'computation' (a human-readable string describing what was calculated, e.g. 'Frobenius norm of a 2x2 matrix').

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "A"
 ],
 "properties": {
  "A": {
   "type": "array",
   "description": "Matrix (2D array)"
  },
  "type": {
   "enum": [
    "frobenius",
    "1",
    "inf"
   ],
   "type": "string"
  }
 }
}
```

## 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-norm-api-6689c759/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)