Summary
Rate lookup and the calculation that follows it, in one step.
Rates and the Brent price are live from zenrus.ru, and the barrel calculators fold the conversion into the answer — so "what would this budget buy" comes back as a number rather than as two lookups the reader has to combine.
What it is
A hosted MCP server that reads current currency and oil prices from zenrus.ru and does the arithmetic that usually follows — turning a cash amount into a barrel count.
What you get
- The current USD/RUB and EUR/RUB exchange rates
- The current Brent crude price per barrel, quoted in US dollars or in roubles
- Barrel-purchasing power for a sum in roubles, dollars or euros — the rate lookup and the division done in one call
- A browser-based inspector for trying the tools before wiring them into a client
Requirements
An XBY-APIKEY, free on registration at xiaobenyang.com, sent as a header for the SSE and streamable HTTP endpoints, or as an environment variable when running the stdio package with npx.
Setup effort
One command plus a key — npx -y xiaobenyang-mcp, then supply credentials