# PennyRail FX Convert USD to EUR

> PennyRail FX Convert USD to EUR is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Converts a USD amount to EUR using a machine-readable settlement service with micropayment access

## Facts

- Endpoint: POST https://pennyrail.vercel.app/api/p/network/fx.convert--convert-usd-eur
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pennyrail-fx-convert-usd-to-eur-68e3d83f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nfRN08qp7pjXVyvxbBUSX

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 pennyrail-fx-convert-usd-to-eur-68e3d83f -d '<json body>'
```

Example prompt: Convert $250 USD to EUR for me and tell me how much I'd get back.

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call USD-to-EUR conversion with no subscription overhead, especially in agentic or automated workflows where micropayment-based access (x402 protocol) is already integrated.

## Known failure modes

- Missing or malformed input object returns a 400-level error
- Payment not fulfilled results in 402 Payment Required response
- Invalid currency pair or unsupported conversion returns an error
- Network timeout or Vercel cold-start latency may cause intermittent failures
- Empty input object may return undefined or zero result

## How this service works

Machine-readable settlement service

## Output

Returns a JSON object containing the converted EUR value and likely associated exchange rate metadata for the given USD input amount.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pennyrail-fx-convert-usd-to-eur-68e3d83f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pennyrail.vercel.app](https://www.zero.xyz/host/pennyrail.vercel.app/llms.txt)