# Numora Matrix Multiplication API

> Numora Matrix Multiplication 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).

Multiplies two matrices (2D arrays) together and returns the resulting matrix with a human-readable description of the computation

## Facts

- Endpoint: POST https://numorapoi.orbonomy.xyz/api/matrix/multiply
- 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-multiplication-api-a08eca49
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-rN2ZugxR7LZ5OOb6qvSu

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-multiplication-api-a08eca49 -d '<json body>'
```

Example prompt: Can you multiply these two matrices for me using Numora? Matrix A is [[1,2],[3,4]] and Matrix B is [[5,6],[7,8]].

## When to prefer this

Choose this endpoint when you need a serverless, zero-dependency matrix multiplication with micropayment billing on Base — ideal for AI agents performing linear algebra steps without spinning up a local math library, especially when running in environments without numpy or similar.

## Known failure modes

- Incompatible matrix dimensions (e.g. columns of A don't match rows of B) return an error
- Non-numeric values in matrix arrays cause validation failure
- Missing A or B fields return a 400 bad request
- Payment not provided or insufficient USDC causes 402 Payment Required
- Non-2D array input (e.g. flat array) may cause computation 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 success=true, a result object containing the product matrix, and a computation string describing what was calculated (e.g. '2x2 matrix multiplied by 2x2 matrix').

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "A",
  "B"
 ],
 "properties": {
  "A": {
   "type": "array",
   "description": "Matrix (2D array)"
  },
  "B": {
   "type": "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-multiplication-api-a08eca49/health.json
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