# Agent FX Reference – ECB Currency Preview

> Agent FX Reference – ECB Currency Preview is a paid API for AI agents from appearing-clinics-show-wrote.trycloudflare.com, paid per call via x402, price unknown, status down (last checked 2026-10-19).

Returns a free preview listing of supported currencies and data freshness metadata for the ECB FX reference rate service.

## Facts

- Endpoint: GET https://appearing-clinics-show-wrote.trycloudflare.com/fx-sample?utm_source=zero.xyz
- Price: price unknown
- Payment: x402
- Status: down
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-fx-reference-ecb-currency-preview-a3f97ee1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_V8lpPfesJjJRNwVnpMIq6

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 agent-fx-reference-ecb-currency-preview-a3f97ee1
```

Example prompt: Can you show me which currencies are supported by the ECB FX reference rate service and how fresh the data is right now?

## When to prefer this

Use this endpoint when you need to discover which currencies are supported by the ECB-backed FX rate service and assess data freshness before committing to paid cross-rate calculations. Prefer this over paid FX APIs when you only need currency coverage metadata, not actual conversion rates. It is ideal as a first step in an agent workflow to validate that desired currency pairs are available.

## Known failure modes

- Service temporarily unavailable due to Cloudflare tunnel downtime
- Stale or delayed ECB rate freshness data if upstream ECB feed is slow
- Empty or incomplete currency list if the ECB source has not published today's rates yet
- Rate limiting or timeouts if the free preview endpoint is under heavy load

## How this service works

Free ECB FX reference preview listing supported currencies and freshness. Underlying rates are free at ecb.europa.eu; the paid $0.001 service performs bounded validation, cross-rate calculation, and API delivery.

## Output

A structured response listing all supported currency codes available through the ECB FX reference rate service, along with metadata about when the rates were last refreshed, serving as a free preview before purchasing the paid cross-rate calculation service.

## 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",
     "required": [],
     "properties": {}
    }
   },
   "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/agent-fx-reference-ecb-currency-preview-a3f97ee1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from appearing-clinics-show-wrote.trycloudflare.com](https://www.zero.xyz/host/appearing-clinics-show-wrote.trycloudflare.com/llms.txt)