# Numora Matrix Multiply

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

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

## Facts

- Endpoint: POST https://numormo.vercel.app/api/matrix/multiply
- 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-multiply-3c46f7b3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wZDUzUs0KWkvJvsC4b-Nr

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-multiply-3c46f7b3 -d '<json body>'
```

Example prompt: Multiply matrix A [[1,2],[3,4]] by matrix B [[5,6],[7,8]] and give me the resulting matrix.

## When to prefer this

Use this endpoint when you need a pure, serverless, zero-dependency matrix multiplication with guaranteed numeric precision and a human-readable computation summary. Prefer it over general-purpose code execution when you want a lightweight, metered micropayment per-call model without spinning up a math runtime. Ideal for AI agents doing linear algebra steps as part of a larger workflow (ML inference, geometric transforms, economics models) where calling a dedicated math API is cleaner than executing untrusted code.

## Known failure modes

- Incompatible matrix dimensions (columns of A must equal rows of B) — returns error or success:false
- Non-rectangular arrays (jagged arrays) may cause parsing errors
- Non-numeric values in matrix elements will fail computation
- Missing required fields A or B returns validation error
- Very large matrices may exceed compute limits or timeout

## 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' (boolean), 'result' (the product matrix as a 2D array or equivalent object), and 'computation' (a human-readable string describing what was computed, 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-multiply-3c46f7b3/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)