truss44-mcp-crypto-price — Claude Code MCP server for crypto prices
Hands your agent live crypto prices, fiat rates and a market overview from CoinCap. Useful when you want portfolio math or exchange data without leaving the chat.
claude mcp add --transport http truss44-mcp-crypto-price https://server.smithery.ai/@truss44/mcp-crypto-price/mcpWhat truss44-mcp-crypto-price does
The server talks to CoinCap v3 and exposes a set of tools: current price and 24h stats, converting an amount into fiat, market analysis with the top 5 exchanges and VWAP, global figures such as Bitcoin dominance, fiat and crypto rates, exchanges ranked by volume, top assets by market cap, fuzzy search by name or symbol, a detail card for one coin, and a side-by-side comparison of 2–5 coins.
Tool names carry a category prefix — price-*, market-*, assets-*, analysis-*. Both STDIO and Streamable HTTP transports work; over HTTP the server listens on port 3000, and PORT changes that. HTTP clients pass the key in the URL itself: http://localhost:3000/mcp?COINCAP_API_KEY=YOUR_API_KEY_HERE.
You need Node.js 22.14+ and a COINCAP_API_KEY — a free tier exists, but every tool errors out without a valid key. CoinCap v2 is gone, so older configs pointing at it stop working. Running through the Smithery CLI means authenticating with smithery auth login or SMITHERY_API_KEY; recent CLI builds reject keys passed via --key.
What it helps with
- check a coin's price and its 24h move
- convert a crypto amount into a fiat currency
- compare several coins by market cap and volume
- see how trading volume splits across exchanges
- find a coin by part of its name or ticker
Example prompts for the agent
- What's BTC trading at right now, and how did it move today?
- Convert 2.5 BTC to EUR
- Compare BTC, ETH and SOL by market cap and volume
How to install truss44-mcp-crypto-price
Platform CLI: remote server
claude mcp add --transport http truss44-mcp-crypto-price https://server.smithery.ai/@truss44/mcp-crypto-price/mcpPlatform CLI: remote server
codex mcp add truss44-mcp-crypto-price --url https://server.smithery.ai/@truss44/mcp-crypto-price/mcpConfig file
{
"mcpServers": {
"truss44-mcp-crypto-price": {
"url": "https://server.smithery.ai/@truss44/mcp-crypto-price/mcp"
}
}
}Config file
{
"servers": {
"truss44-mcp-crypto-price": {
"type": "http",
"url": "https://server.smithery.ai/@truss44/mcp-crypto-price/mcp"
}
}
}Platform CLI: remote server
gemini mcp add -t http truss44-mcp-crypto-price https://server.smithery.ai/@truss44/mcp-crypto-price/mcpStep by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about truss44-mcp-crypto-price
How do I install truss44-mcp-crypto-price in Claude Code?
Run claude mcp add --transport http truss44-mcp-crypto-price https://server.smithery.ai/@truss44/mcp-crypto-price/mcp. The server then shows up in Claude's MCP server list.
What does truss44-mcp-crypto-price do?
It gives the agent CoinCap data: coin prices and 24h stats, fiat conversion, a whole-market overview, currency rates, exchanges by volume, asset search and multi-coin comparison.
What does the server need to run?
Node.js 22.14+ and a CoinCap key supplied through COINCAP_API_KEY — an environment variable for STDIO, or a URL parameter for HTTP. Without a valid key the tools return an error.
