# Numora Matrix Determinant

> Numora Matrix Determinant 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 determinant of a matrix supplied as a 2D array

## Facts

- Endpoint: POST https://numorapoi.orbonomy.xyz/api/matrix/determinant
- 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-determinant-697082c6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HxHFctfD2DeB1P2kBAKb2

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-determinant-697082c6 -d '<json body>'
```

Example prompt: Calculate the determinant of this matrix for me: [[3, 8], [4, 6]].

## When to prefer this

Choose this endpoint when you need a pure, serverless, zero-dependency scalar determinant computation for a matrix of any reasonable size, especially in agent pipelines that already use x402 micropayments on Base and want no external library calls or environment setup. Prefer this over rolling your own computation when you need a reliable REST-based math primitive.

## Known failure modes

- Non-square matrix submitted — determinant is undefined, expect error or failure response
- Malformed 2D array (ragged rows, non-numeric values) — validation failure
- Empty matrix or null input — required field 'A' missing triggers 400-level error
- Payment not included or insufficient — x402 payment required error before computation
- Very large matrices may time out or exceed computation limits

## 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 determinant scalar value, and a 'computation' string that describes in human-readable form what was computed.

## 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-determinant-697082c6/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)