{"since":"2026-10-01","as_of":"2026-10-31","default_window":"30 days (pass ?since=YYYY-MM-DD to widen or narrow)","changed":5,"freshness":{"series_served":117,"confirmed_within_1_day":0,"confirmed_within_7_days":11,"confirmed_within_30_days":28,"confirmed_within_90_days":73,"past_verification_window":0,"oldest_confirmation":{"country":"MX","series":"minimum-wage","last_confirmed":"2026-07-15"},"note":"Every value carries the date we last re-verified it against its official source. Values past their verification window are served with stale=true rather than quietly aged — the tail is published here alongside the headline."},"changes":[{"country":"CA","series":"fx-reference","name":"Bank of Canada exchange rates","effective_from":"2026-10-29","last_confirmed":"2026-10-30","stale":false,"free":false},{"country":"MX","series":"fx-reference","name":"Banxico FIX exchange rate","effective_from":"2026-10-29","last_confirmed":"2026-10-30","stale":false,"free":false},{"country":"US","series":"fx-reference","name":"Federal Reserve H.10 foreign exchange reference rates","effective_from":"2026-10-23","last_confirmed":"2026-10-30","stale":false,"free":false},{"country":"CR","series":"statutory-interest","name":"Statutory legal interest (interés legal)","effective_from":"2026-10-22","last_confirmed":"2026-10-27","stale":false,"free":false},{"country":"US","series":"statutory-interest","name":"Federal post-judgment interest rate (28 U.S.C. § 1961)","effective_from":"2026-10-16","last_confirmed":"2026-10-22","stale":false,"free":false}],"read_a_value":"https://usaref.dev/v1/{country}/{series}","price_note":"This feed is free and unmetered. The values themselves are paid per call via x402 (or an API key); public holidays are free at /v1/{country}/public-holidays.","disclaimer":"Independent service, not affiliated with any government. Verify against the cited official source before legal or financial use."}