# Numora Prime Check

> Numora Prime Check is a paid API for AI agents from numorapoi.orbonomy.xyz, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).

Checks whether a given integer is a prime number using pure math computation

## Facts

- Endpoint: POST https://numorapoi.orbonomy.xyz/api/number/prime-check
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/numora-prime-check-400ea01f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Q68qdpRsURrFo7o9L1m4K

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-prime-check-400ea01f -d '<json body>'
```

Example prompt: Can you check whether 1000003 is a prime number?

## When to prefer this

Choose this endpoint when you need a quick, trustless, serverless primality check for a single integer without relying on an external library or language runtime. Ideal for AI agents needing on-demand number theory validation as part of a larger math pipeline, and when x402 micropayment infrastructure on Base is already in use.

## Known failure modes

- Missing required field 'n' returns a validation error
- Non-integer input for 'n' causes a schema validation failure
- Payment not included or insufficient USDC triggers a 402 Payment Required response
- Very large integers may cause timeouts or computation errors

## 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 indicating whether the input integer is prime or not, and a human-readable computation string describing what was computed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "n"
 ],
 "properties": {
  "n": {
   "type": "integer"
  }
 }
}
```

## 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-prime-check-400ea01f/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)