# P0 Agent Economy Index — ECB FX Reference Rates (EUR)

> P0 Agent Economy Index — ECB FX Reference Rates (EUR) is a paid API for AI agents from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-23).

Returns the latest European Central Bank euro foreign-exchange reference rates for major currencies, with staleness flag and day-over-day percentage changes.

## Facts

- Endpoint: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/eu/fx?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/p0-agent-economy-index-ecb-fx-reference-rates-eur-dc6802a6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iK86abroAhOlI_PdTfZGg

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 p0-agent-economy-index-ecb-fx-reference-rates-eur-dc6802a6
```

Example prompt: What's the latest ECB euro reference rate for USD, GBP, and JPY today, and how much has each moved since yesterday?

## When to prefer this

Prefer this endpoint when you need official, ECB-published euro reference rates with a staleness indicator and day-over-day change data, particularly for compliance, invoicing, or financial reporting use cases. Choose over third-party FX APIs when ECB provenance and the specific currency subset (EUR base, CHF/GBP/JPY/PLN/USD) are sufficient.

## Known failure modes

- ECB does not publish rates on weekends or non-TARGET working days — stale flag will be true
- Rate data may be delayed if ECB has not yet published the 16:00 CET update — businessDaysOld > 0
- Network or upstream ECB feed failure may result in a 5xx error
- Only a limited set of major currency pairs (CHF, GBP, JPY, PLN, USD) are included; exotic pairs are not available

## How this service works

An open index of the machine-to-machine (agent) economy. x402 routes: ranked discovery over the live x402 service market, every indexed service scored by real 30-day calls and paying-wallet bounds, with a receipt naming the snapshot hash and scoring revision. /economy routes, for Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and MCP servers (Official MCP Registry): each protocol's published figures (agent or server counts, transactions or payment events; payers and USD volume only where the source publishes them: payers for x402 and Tempo MPP, USD volume for x402 and Virtuals ACP), each with its unit, window and source; units differ, so totals are not summed. L402 and per-service MPP listings are not covered.

## Output

A JSON object with the base currency (EUR), snapshot date, previous business day date, a staleness boolean, the source name and URL, fetchedAt timestamp, business days old count, a rates map of currency codes to float values, and a changeVsPrevPct map of day-over-day percentage changes for each currency.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "base": "EUR",
  "date": "2026-10-02",
  "note": "Reference rates published by the European Central Bank for information purposes only; not transaction rates. Usually updated around 16:00 CET on TARGET working days.",
  "rates": {
   "CHF": 0.9279,
   "GBP": 0.85033,
   "JPY": 176.99,
   "PLN": 4.3775,
   "USD": 1.1225
  },
  "stale": false,
  "source": "ECB euro foreign exchange reference rates",
  "prevDate": "2026-10-01",
  "fetchedAt": "2026-10-02T15:31:04Z",
  "sourceUrl": "https://www.ecb.europa.eu/stats/policy_and_exchange_rates/euro_reference_exchange_rates/html/index.en.html",
  "businessDaysOld": 1,
  "changeVsPrevPct": {
   "CHF": -1.6743,
   "GBP": -0.3983,
   "JPY": -0.8404,
   "PLN": 0.0915,
   "USD": -0.6461
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/p0-agent-economy-index-ecb-fx-reference-rates-eur-dc6802a6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev](https://www.zero.xyz/host/x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/llms.txt)