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coincap-mcp

coincap-mcp

by QuantGeekDev
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Remote

Coincap MCP

What does this server do?

Allows you to query crypto information from coincap's public API - no API keys or registration required

Related MCP server: CoinCap MCP Server

🚀 Quick Start

To get started, add this configuration to your Claude Desktop config file:

MacOS: ~/Library/Application\ Support/Claude/claude_desktop_config.json
Windows: %APPDATA%/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mongodb": {
      "command": "npx",
      "args": ["coincap-mcp"]
    }
  }
}

Installing via Smithery

To install Coincap for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install coincap-mcp --client claude

Prerequisites

  • Node.js 18+

  • npx

Then, launch Claude Desktop and you're ready to go!

Sample Prompts

  • What is the price of bitcoin?

  • What are the available crypto assets?

  • What is the market cap of ethereum?

Tools

Bitcoin Price Tool

Gets price for Bitcoin specifically, it's a simple example of a primitive API call tool

Get Crypto Price Tool

Gets price for any cryptocurrency available on coincap API. It's a good example of how to get mandatory parameter data for your tool calls

List Assets

Gets a list of all crypto assets available in coincap API

Development - local build

To build it locally:

On MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json On Windows: %APPDATA%/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "coincap-mcp": {
      "command": "/path/to/coincap-mcp/build/index.js"
    }
  }
}

Development

Install dependencies:

npm install

Build the server:

npm run build

For development with auto-rebuild:

npm run watch

📜 License

This project is licensed under the MIT License - see the LICENSE file for details.

Available Tools

3 tools
bitcoin_priceB

Get realtime bitcoin price

get_crypto_priceC

Get realtime crypto price on crypto

Inputs: name.

list_assetsB

Get all available crypto assets

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

Loading tool schema changelog…

    Deploy Server
    One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

    TDQS

    C2.7/5.0

    Scored across 3 tools

    Disambiguation2/5

    Two tools (bitcoin_price and get_crypto_price) have overlapping purposes, both focused on fetching crypto prices, which creates ambiguity. The descriptions do not clearly differentiate them, making it likely an agent could misselect between them. The third tool (list_assets) is distinct, but the overlap between the first two significantly reduces clarity.

    Naming Consistency3/5

    The naming is mixed, with two tools using a verb_noun pattern (get_crypto_price, list_assets) and one using a noun_verb pattern (bitcoin_price). While readable, this inconsistency in verb placement and specificity (bitcoin vs. crypto) deviates from a predictable convention. The patterns are not chaotic but lack uniformity.

    Tool Count3/5

    With 3 tools, the count is borderline thin for a crypto data server, as it may lack comprehensive coverage for common operations like historical data or multiple asset queries. However, it is reasonable for a minimal or focused scope, though it feels slightly under-scoped for typical crypto API use cases.

    Completeness2/5

    The tool set has significant gaps for a crypto data domain, such as missing operations for historical price data, market cap info, volume, or specific asset details beyond listing. The overlap in price tools does not add functionality, and agents may struggle with incomplete workflows like tracking trends or comparing assets over time.

    Maintenance

    ActivityInactive
    ResponsivenessNo recent community issues

    Resources

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