# ECB Euro Reference Exchange Rates

> ECB Euro Reference Exchange Rates is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-16).

Returns the last N daily ECB euro reference exchange rates for a specified currency against EUR

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/ecb-rates
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ecb-euro-reference-exchange-rates-a1e7aead
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SFawupPmrGaKWoLUb5HsQ

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 ecb-euro-reference-exchange-rates-a1e7aead -d '<json body>'
```

Example prompt: Pull the last 15 daily ECB euro reference exchange rates for USD vs EUR so I can see the recent trend.

## When to prefer this

Use this endpoint when you need official ECB daily euro reference rates for a specific currency over a recent time series. It is ideal for financial analysis, FX trend tracking, reporting, or any task requiring authoritative euro cross-rates from the European Central Bank rather than real-time market rates.

## Known failure modes

- Unsupported or invalid currency code returns an error or empty result
- n parameter out of range may return fewer results or an error
- ECB data not yet published for the current day may return stale or missing latest entry
- Network or upstream ECB data feed outage returns 5xx error
- Missing required currency parameter may return an error or default behavior

## How this service works

MARKETS: daily ECB euro reference exchange-rate series for a currency vs EUR (?currency=USD&n=15). Returns JSON.

## Output

A JSON array of daily ECB reference exchange rate data points for the requested currency pair (e.g. USD/EUR), with each entry containing a date and rate value, covering the requested number of most recent trading days.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ecb-euro-reference-exchange-rates-a1e7aead/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from clonecho.builda.company](https://www.zero.xyz/host/clonecho.builda.company/llms.txt)