Currency RSS

What it is

A scheduled GitHub Action rebuilds /rates/feed.xml about every 30 minutes. It adds an item each time a series changes value or publication time, and it keeps the latest 50 items. The same run updates /rates/index.json, which powers the “Feed de tasas” widget on this site. The feed is in Spanish, like the rate pages it summarizes.

What’s in the feed

• Dollar rates: Venezuela (BCV), Argentina (official and blue), Colombia (TRM), Mexico (Banxico FIX), Peru and Chile (dólar observado).
• Bitcoin in USD (CoinGecko), with the 24-hour change.
• USD/CAD and the Bank of Canada policy rate (Bank of Canada Valet API).
• Bank of England Bank Rate (Bank of England Database, IUDBEDR).
• US federal funds target range (Federal Reserve Bank of New York Markets API).
• China’s 1-year and 5-year Loan Prime Rate (China Foreign Exchange Trade System).

How it works

• Static output on GitHub Pages: no server, no database, no API keys, all on free tiers.
• Each country rate is first baked into its own page so search engines see real values. The feed then reads those files.
• Fallback sources are named honestly. If a series can’t be fetched, it’s skipped and the last good value keeps its original timestamp. Values are never estimated.
• Bitcoin is fetched by the build, never by visitors’ browsers, and cached for at least 60 seconds to respect CoinGecko’s rate limits.