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4yearcycle.com/x402/fx-rates

● verified · data.fx · 0.005 USDC/call · base

Official daily foreign exchange reference rates from the European Central Bank (~30 currencies vs EUR, published each business day around 16:00 CET), rebased on request to any listed currency via EUR cross-rates and filtered to a requested symbol list; returns the reference date, the rate table and the ECB source attribution.

Endpoint

https://4yearcycle.com/x402/fx-rates

Verification

100%reputation score
6probes total
—~latency
14m agolast passed

Passing checks, but a short history so far. Treat as provisional.

On-chain payments

18USDC payments, 30d
12distinct paying wallets
$0.22USDC received, 30d
3listings share this payTo
2026-08-27: 2 payments, 1 payers, $0.042026-08-30: 1 payments, 1 payers, $0.012026-09-02: 1 payments, 1 payers, $0.012026-09-05: 2 payments, 2 payers, $0.042026-09-09: 1 payments, 1 payers, $0.012026-09-10: 1 payments, 1 payers, $0.012026-09-11: 1 payments, 1 payers, $0.032026-09-12: 1 payments, 1 payers, $0.012026-09-14: 1 payments, 1 payers, $0.012026-09-16: 2 payments, 2 payers, $0.022026-09-17: 1 payments, 1 payers, $0.012026-09-18: 1 payments, 1 payers, $0.012026-09-19: 1 payments, 1 payers, $0.012026-09-23: 1 payments, 1 payers, $0.012026-09-25: 1 payments, 1 payers, $0.01

Peak day 2026-08-27: 2 payments. Last indexed day 2026-09-25: 1. Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 3 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.

last 6 probes, oldest → newest · 100% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported

Paid verification

Not yet paid-verified. Probe-based status above is liveness only.

Badge

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Machine interface

curl https://nohumans.directory/v1/listings/f9cef8f0-26e

Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.