Currency Exchange · head-to-head
Czech National Bank vs paralelo.bo
The Czech National Bank publishes its official daily fixing of the koruna against roughly 30 foreign currencies, sourced from interbank market quotes and released every working day around 14:30 CET (weekends and holidays carry over the last valid fixing). Beyond the legacy raw XML feed this entry links to, CNB also runs a modern JSON REST API with interactive Swagger documentation and date-parameterized historical queries — and, like the old feed, it requires no key or registration.
paralelo.bo is an independent community project that tracks Bolivia's informal "parallel" USD/BOB exchange rate by aggregating P2P listings from several crypto exchanges every 60 seconds, exposing the median rate alongside individual buy/sell prices and spreads. Beyond a standard JSON endpoint, it offers a plain-text single-value route built for shell pipelines, CSV/JSON historical series, and — unusually for a niche regional FX tracker — an MCP interface aimed at AI-agent integrations. Data is published under CC-BY 4.0 with no key or registration required.
| Czech National Bank | paralelo.bo | |
|---|---|---|
| Authentication | None | None |
| Pricing | free | free |
| Formats | XML, JSON | JSON, CSV, Plain Text |
| CORS | unknown | yes |
| HTTPS | Yes | Yes |
paralelo.bo supports CORS, while Czech National Bank doesn't — pick paralelo.bo for direct browser calls.