# Numora Fibonacci Number Generator

> Numora Fibonacci Number Generator is a paid API for AI agents from numormor.netlify.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Computes the nth Fibonacci number given an integer index n

## Facts

- Endpoint: POST https://numormor.netlify.app/api/number/fibonacci
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/numora-fibonacci-number-generator-efa17378
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bbsOzbH4YV0b6d1OgoDWW

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-fibonacci-number-generator-efa17378 -d '<json body>'
```

Example prompt: What is the 42nd Fibonacci number? Use the Numora pure math API to compute it exactly.

## When to prefer this

Use this endpoint when you need a precise, server-side computation of a specific Fibonacci number by index, especially when you want to avoid implementing the logic yourself or need a verifiable result for a given n. Prefer this over general-purpose LLMs for large indices where accuracy matters.

## Known failure modes

- Missing required field 'n' returns a validation error
- Non-integer value for n causes a schema error
- Extremely large n may cause overflow or timeout
- Payment not provided or insufficient USDC triggers 402 response
- Negative integer n behavior may be undefined or 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 (boolean), result (object containing the computed Fibonacci number for the given index n), and computation (human-readable 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-fibonacci-number-generator-efa17378/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from numormor.netlify.app](https://www.zero.xyz/host/numormor.netlify.app/llms.txt)