# CoinMarketCal

Connects the CoinMarketCal crypto event calendar to AI coding assistants. Supplies event dates, impact scores and editorial categories directly to agents.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI
- Author: CoinMarketCal
- License: MIT · policy=link-only · description only; the file stays with the author
- Source: https://github.com/CoinMarketCal/coinmarketcal-api
- Updated: 2026-10-15
- HTML: https://affpapa.org/en/nevibecode/mcp/coinmarketcal

## What it 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.

## Requirements
- Remote server: `https://coinmarketcal.com/mcp`

## Install

### Claude Code (native platform)

**Platform CLI: remote server**
```bash
claude mcp add --transport http coinmarketcal https://coinmarketcal.com/mcp
```

### Codex

**Platform CLI: remote server**
```bash
codex mcp add coinmarketcal --url https://coinmarketcal.com/mcp
```

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "coinmarketcal": {
            "url": "https://coinmarketcal.com/mcp"
        }
    }
}
```

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "coinmarketcal": {
            "type": "http",
            "url": "https://coinmarketcal.com/mcp"
        }
    }
}
```

### Gemini CLI

**Platform CLI: remote server**
```bash
gemini mcp add -t http coinmarketcal https://coinmarketcal.com/mcp
```

## When to use it
- 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
- 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`

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