# Foundry Roman Numeral Converter

> Foundry Roman Numeral Converter is a paid API for AI agents from minty-sprout.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-01).

Converts integers (1–3999) to Roman numerals and Roman numerals back to integers

## Facts

- Endpoint: POST https://minty-sprout.onrender.com/v1/roman-numeral?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/foundry-roman-numeral-converter-e0a8c17d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GDLbp2rw0Jia944FIUwyC

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 foundry-roman-numeral-converter-e0a8c17d -d '<json body>'
```

Example prompt: Can you convert 2026 to Roman numerals for me?

## When to prefer this

Use this endpoint whenever you need a reliable, bidirectional Roman numeral conversion for any integer from 1 to 3999. It handles both directions (number→Roman and Roman→number) in a single call with a simple string input, making it ideal for labeling, design, historical date formatting, or educational tools without needing to implement the conversion logic yourself.

## Known failure modes

- Input integer out of range (below 1 or above 3999) returns an error
- Malformed or invalid Roman numeral string returns an error
- Empty or missing input field returns a validation error
- Non-numeric string passed as a number causes a parse error

## How this service works

Roman numeral converter: numbers to Roman numerals and back (1 to 3999). Input: '2026' or 'MMXXVI'.

## Output

A JSON object containing both the Roman numeral string (e.g. 'MMXXVI') and the integer value (e.g. 2026), regardless of which direction the conversion went.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "string",
   "maxLength": 8000,
   "description": "A number or a Roman numeral"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "roman": "MMXXVI",
  "number": 2026
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/foundry-roman-numeral-converter-e0a8c17d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from minty-sprout.onrender.com](https://www.zero.xyz/host/minty-sprout.onrender.com/llms.txt)