# ECB Daily FX Rates — Latest (All Currencies, Rebased)

> ECB Daily FX Rates — Latest (All Currencies, Rebased) is a paid API for AI agents from x402.professorsausages.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns the most recent ECB daily reference fixing rates for all ~30 covered currencies, rebased to any covered currency, as a dated, attributed JSON object.

## Facts

- Endpoint: GET https://x402.professorsausages.com/fx-rates/latest
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ecb-daily-fx-rates-latest-all-currencies-rebased-e858582a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fZrCJ9a7AaOne_4Kr8diW

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-daily-fx-rates-latest-all-currencies-rebased-e858582a
```

Example prompt: Pull the latest ECB daily reference rates for all covered currencies, rebased to USD — I need the official fixing date, how stale it is, and the full rates map.

## When to prefer this

Choose this endpoint when you need official, auditable ECB daily reference rates across all ~30 covered currencies in a single call, especially for compliance, invoicing, or reporting use cases where attribution to the European Central Bank matters. Prefer this over live trading rate APIs when regulatory or auditability requirements demand a named, dated, central-bank source. Best when you need a full multi-currency snapshot rather than a single pair.

## Known failure modes

- Unsupported base currency returns an error — only ECB-covered currencies are valid
- ECB may not publish rates on weekends/holidays, in which case staleDays will be non-zero
- Network or payment failure (x402 USDC payment of $0.002 not settled) results in 402 response
- Malformed request with unexpected input body may return a 400 or validation error

## How this service works

All ~30 currencies at the most recent ECB daily reference fixing, rebased to any covered currency — dated, attributed, agent-clean JSON

## Output

A JSON object containing: base currency, a map of ~30 currency codes to rates (6 decimal precision, expressed as 1 base = N quote), the ECB fixing date (YYYY-MM-DD), staleDays integer (0 = current), source string ('European Central Bank'), rateType ('ecb-daily-reference'), and a disclaimer string.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ecb-daily-fx-rates-latest-all-currencies-rebased-e858582a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.professorsausages.com](https://www.zero.xyz/host/x402.professorsausages.com/llms.txt)