Exchange Rate MCP

Live currency exchange rates and amount conversion for 30+ currencies, accepting both ISO codes (USD) and Chinese names (美元), based on ECB daily reference rates.

• Try it in 30 seconds: a free public MCP endpoint is already running — just paste the URL into your MCP client (no install, no API key).
• Or self-host: a single Python file, stdlib HTTP + FastMCP, zero paid dependencies.

⚡ Use the hosted endpoint (no setup)

https://mcp.pianam.cn/exchange-mcp/mcp

Transport: Streamable HTTP (MCP 2025-03-26 compatible). No authentication required.

🔌 Client configuration

Add this to your MCP client's mcpServers configuration (Claude Desktop claude_desktop_config.json, Cursor mcp.json, Cline, Cherry Studio, etc.):

{
  "mcpServers": {
    "exchange-rate": {
      "type": "http",
      "url": "https://mcp.pianam.cn/exchange-mcp/mcp"
    }
  }
}

Clients that do not accept "type": "http" (some Cherry Studio / older Cline versions) accept the same entry with just "url".

🧰 Tools

📡 Data sources, caching & limits

• Primary source: Frankfurter — European Central Bank (ECB) daily reference rates, free, no API key.
• Automatic fallback: open.er-api.com if the primary source fails.
• 32 currencies with Chinese display names (人民币, 美元, 欧元, 日元, 港币, 韩元, 新台币 …) and Chinese aliases (美金/美刀, 港元, 台币, 澳币 …).
• Rates cached for 2 hours (ECB updates on working days); hosted endpoint rate-limited to 200 requests / minute / IP.

🐢 Self-hosting

git clone https://github.com/boy-373/exchange-rate-mcp.git
cd exchange-rate-mcp
pip install -r requirements.txt
python exchange_mcp_server.py
# the server listens on 127.0.0.1:8005 by default; override with:
#   MCP_HOST=0.0.0.0 MCP_PORT=9000 python exchange_mcp_server.py
#   MCP_ALLOWED_HOSTS="your-domain.com,127.0.0.1:*"
#   MCP_ALLOWED_ORIGINS="https://your-domain.com"

Then point your MCP client at http://127.0.0.1:8005/mcp. No API keys or accounts are ever required.

🐳 Self-host with Docker

Option A — pull the pre-built image (fastest, no build):

docker run -d -p 8000:8000 --name exchange-rate-mcp ghcr.io/boy-373/exchange-rate-mcp:latest

Option B — build from source:

git clone https://github.com/boy-373/exchange-rate-mcp.git
cd exchange-rate-mcp
docker build -t exchange-rate-mcp .
docker run -d -p 8000:8000 --name exchange-rate-mcp exchange-rate-mcp

Then point your MCP client at http://127.0.0.1:8000/mcp. The container listens on 0.0.0.0:8000 by default (override with -e MCP_PORT=9000 and adjust -p accordingly). No API keys or accounts required.

🗂️ Files

• exchange_mcp_server.py — the MCP server (FastMCP, Streamable HTTP transport).
• rate_limit.py — lightweight per-IP sliding-window rate-limit middleware (200 req/min default).
• requirements.txt — mcp, uvicorn, starlette.
• server.json — official MCP Registry manifest (remote server entry, ready to publish with mcp-publisher).
• smithery.yaml / glama.json — directory listing metadata.

🇨🇳 中文使用说明

一句话：30+ 常用货币实时参考汇率与金额换算，中文货币名直接问（「100 美元换多少人民币」）。

**在线直连地址（免费、无需

... View full README on GitHub