# MCPFax FX Rate & Currency Converter

> MCPFax FX Rate & Currency Converter is a paid API for AI agents from mcpfax-utility.bowling-anthony.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Returns ECB reference exchange rates for currency pairs and optionally converts a specified amount between currencies.

## Facts

- Endpoint: GET https://mcpfax-utility.bowling-anthony.workers.dev/v1/fx
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mcpfax-fx-rate-currency-converter-01b94106
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jdb5MfgFNsIMGgLx92-94

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 mcpfax-fx-rate-currency-converter-01b94106
```

Example prompt: What's the current ECB reference rate for EUR to USD, and how much would 750 euros be in US dollars?

## When to prefer this

Prefer this endpoint when you need official, authoritative ECB reference FX rates rather than real-time mid-market or commercial rates. Best suited for financial reporting, accounting, compliance, or invoice calculations that require ECB-sourced rates. If you need live interbank rates, cryptocurrency conversion, or rates outside the ECB's published basket, consider a real-time FX provider instead.

## Known failure modes

- Unsupported currency code returns an error (ECB only covers currencies in its reference rate dataset)
- Invalid or malformed currency code results in a validation error
- ECB data may be delayed on weekends or public holidays since ECB rates are business-day only
- Network or upstream ECB data unavailability may cause temporary failures

## How this service works

Currency exchange rates — Reference FX rates (ECB) with optional amount conversion.

## Output

Returns the ECB reference exchange rate for the requested currency pair, and if an amount was provided, also returns the converted value in the target currency.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mcpfax-fx-rate-currency-converter-01b94106/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcpfax-utility.bowling-anthony.workers.dev](https://www.zero.xyz/host/mcpfax-utility.bowling-anthony.workers.dev/llms.txt)