CoinMarketCal — Claude Code MCP server: what it does, how to install
Connects the CoinMarketCal crypto event calendar to AI coding assistants. Supplies event dates, impact scores and editorial categories directly to agents.
claude mcp add --transport http coinmarketcal https://coinmarketcal.com/mcpWhat CoinMarketCal does
This MCP server exposes read endpoints from CoinMarketCal as AI tools. Agents can query upcoming milestones or inspect individual entries using list_events, list_coins, and get_event. Every record provides coin tickers, an editorial tag, source references, and an impact score.
Dates require attention. Whenever isEstimated is true, the date value marks a deadline or window edge rather than an exact calendar day. The displayedDate property holds the intended public timeframe.
Requests run over remote HTTP to https://coinmarketcal.com/mcp without local build steps. You need an API key from coinmarketcal.com/developer, and MCP calls consume quota from your main REST API tier.
What it helps with
- track upcoming protocol upgrades and hard forks
- evaluate market impact scores for token announcements
- look up coin identifiers and supported tickers
- fetch roadmap timeframes with estimated milestone dates
Example prompts for the agent
- Find upcoming hard forks for Ethereum using CoinMarketCal
- Check high-impact events scheduled for this month via
list_events - Look up the release category and displayed date for
ethereum-pectra-upgrade
How to install CoinMarketCal
Platform CLI: remote server
claude mcp add --transport http coinmarketcal https://coinmarketcal.com/mcpPlatform CLI: remote server
codex mcp add coinmarketcal --url https://coinmarketcal.com/mcpConfig file
{
"mcpServers": {
"coinmarketcal": {
"url": "https://coinmarketcal.com/mcp"
}
}
}Config file
{
"servers": {
"coinmarketcal": {
"type": "http",
"url": "https://coinmarketcal.com/mcp"
}
}
}Platform CLI: remote server
gemini mcp add -t http coinmarketcal https://coinmarketcal.com/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 CoinMarketCal
How do I install CoinMarketCal in Claude Code?
Run claude mcp add --transport http coinmarketcal https://coinmarketcal.com/mcp. You will also need an API key from the CoinMarketCal developer portal to authenticate your requests.
What does the CoinMarketCal MCP server do?
It gives your AI assistant tools to read the crypto event database. Agents can look up roadmap entries, coin tickers, impact ratings, and direct links to verification sources.
How does the server flag tentative dates?
When an event date is tentative, the isEstimated boolean is set to true. In those instances, use the displayedDate string to see the estimated quarter or window.
