FX Reference Rates MCP Server

by workers-regnotes-fx-reference-rates Your server? Claim it

answering

FX Reference Rates is answering right now. Last checked 3 min ago. It exposes 9 tools.

ECB FX rates, cloud GPU and LLM API prices, World Bank country macro data; pay per call via x402

Uptime history 8 hours of history

8 hours agonow

100.0%

Uptime 24h

26 of 26 checks

Tools

read from the server

466 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check FX Reference Rates every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add fx-reference-rates --transport http https://fx-reference-rates.regnotes.workers.dev/mcp

Settings → Connectors → Add custom connector, then paste this address

https://fx-reference-rates.regnotes.workers.dev/mcp

~/.codex/config.toml

[mcp_servers.fx-reference-rates]
url = "https://fx-reference-rates.regnotes.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "fx-reference-rates": {
      "url": "https://fx-reference-rates.regnotes.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "fx-reference-rates": {
      "type": "http",
      "url": "https://fx-reference-rates.regnotes.workers.dev/mcp"
    }
  }
}

Available tools 9

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

macro

macro_country

Country economic profile: latest value and year plus annual history (2005 onward) for 21 World Bank World Development Indicators: GDP (USD), real GDP growth, GDP per capita, GNI per capita PPP, CPI inflation, unemployment, population, exports/imports % GDP, current account % GDP, central government debt % GDP, tax revenue % GDP, real and lending interest rates, FDI inflows % GDP, total reserves, official exchange rate, remittances % GDP, Gini, life expectancy, internet users. Country by ISO3/ISO2 code or name. CC BY 4.0. Costs $0.02 USDC on Base via x402.

macro_indicator

Macroeconomic time series: one World Development Indicator (e.g. inflation_cpi_pct, gdp_growth_pct, central_govt_debt_pct_gdp) for up to 20 countries over a year range, annual values. See free /macro/indicators for keys. CC BY 4.0. Costs $0.01 USDC on Base via x402.

macro_rank

Country ranking: sort all economies by one World Development Indicator for a year (default: each country's latest value), highest first or lowest first, optionally filtered by World Bank region or income group. Aggregates (World, regions) excluded unless requested. CC BY 4.0. Costs $0.02 USDC on Base via x402.

rates

rates_historical

ECB reference rates on a given date in any base; non-publication days fall back to the previous publication day (as_of). Costs $0.002 USDC on Base via x402.

rates_latest

Today's exchange rates (forex reference rates, most recent ECB publication) for ~30 currencies in any base currency, e.g. USD to JPY, CNY, EUR, GBP, HKD, SGD, KRW, INR. Filter with symbols. Returns as_of date and source attribution. Costs $0.001 USDC on Base via x402.

rates_timeseries

Daily reference rate series for base/symbol between start and end (max 366 days), with min/max/mean and change. Costs $0.003 USDC on Base via x402.

convert

convert

Currency converter: convert an amount between any two of ~30 currencies (e.g. 100 USD to JPY) at the latest ECB reference rate or as of a past date. Returns rate, result and as_of date. Costs $0.001 USDC on Base via x402.

gpu

ai_gpu_prices

Cloud GPU price comparison: hourly list prices of GPU / AI accelerator instances (H100, H200, A100, L40S, L4, A10G, T4, B200, MI300X, Trainium, Inferentia ...) on AWS and Azure in US, EU and Asia regions, on-demand and Azure Spot, ranked by USD per GPU-hour. Filter by gpu model, cloud, region, pricing. Official provider price APIs, refreshed daily. Costs $0.005 USDC on Base via x402.

llm

ai_llm_prices

LLM API pricing lookup: USD per 1M input, output and cached-input tokens plus context window for ~3,300 models (OpenAI GPT, Anthropic Claude, Google Gemini, DeepSeek, Llama, Mistral, Qwen, xAI ...) across providers (direct, Azure, Bedrock, Vertex, Together, Fireworks ...). Filter by model and provider; sorted by input price. Costs $0.005 USDC on Base via x402.

Endpoints

URL	Transport	State	Latency	Checked
https://fx-reference-rates.regnotes.workers.dev/mcp	streamable-http	answering	637 ms	3 min ago

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FX Reference Rates — questions

Answers built from our own checks of this server.

What can FX Reference Rates do?

It exposes 9 tools, read directly from the server on our last check. Among them: ai_gpu_prices, ai_llm_prices, convert, macro_country, macro_indicator, macro_rank and 3 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

What is FX Reference Rates mostly used for?

Its tools cluster around macro and rates. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.

Is FX Reference Rates working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 26 of 26 checks got a reply (100.0%), average response time 466 ms. The bar chart above shows every period we have measured.

How do I connect FX Reference Rates?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does FX Reference Rates need an API key?

No. FX Reference Rates completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 9 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is FX Reference Rates?

It answers our handshake in 466 ms on average, which is faster than 29% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.