Is Spirit Cards free?

Yes, Spirit Cards is free to use.

How do I install Spirit Cards?

Spirit Cards is a remote plugin. You do not need to install anything locally. Add the server URL to your AI app's MCP configuration and you are ready to go.

Is Spirit Cards safe to use?

Yes. Spirit Cards passed MCP Marketplace's automated security scan with a score of 10/10 (low risk). Every server on MCP Marketplace is security-scanned before it's listed; see the full security report on this page for the findings and permissions.

What AI apps work with Spirit Cards?

Spirit Cards uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

Back to Browse

Spirit Cards MCP Server

by Spiritcards

Developer ToolsLow Risk10.0MCP RegistryRemote

Free

Server data from the Official MCP Registry

Read-only Spirit Cards MCP: PoW-mined NFT cards on Robinhood Chain — stats, cards, leaderboard.

About

Read-only Spirit Cards MCP: PoW-mined NFT cards on Robinhood Chain — stats, cards, leaderboard.

Remote endpoints: streamable-http: https://spiritcards.fun/api/mcp

Security Report

10.0

Low Risk10.0Low Risk

Valid MCP server (1 strong, 3 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry.

9 tools verified · Open access · No issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Found in Source Code

Found by scanning the linked source code. This listing connects to a hosted endpoint, so none of this runs on your machine: it describes what the server software does where it is hosted.

HTTP Network Access

Connects to external APIs or services over the internet.

env_vars

Applies to the server that hosts this plugin, not to your machine.

How to Connect

Remote Plugin

No local installation needed. Your AI client connects to the remote endpoint directly.

Add this to your MCP configuration to connect:

{
  "mcpServers": {
    "fun-spiritcards-spirit-cards-mcp": {
      "url": "https://spiritcards.fun/api/mcp"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

spirit-cards-mcp

A read-only Model Context Protocol (MCP) server for Spirit Cards (Proof of Card) — a proof-of-work minted collectible card game on Robinhood Chain — mainnet chainId 4663, live since 2026-10-05.

It runs over stdio, so Claude Desktop and Cursor can launch it with npx. It fetches live game data from the hosted web API and computes the proof-of-work locally with viem — so an agent can inspect the collection, verify a nonce, or even grind a valid nonce, without a wallet, a private key, or a single transaction.

Read-only. No keys, no secrets, no signing, no sending. Every network call is a plain GET.

Quick start

Run with npx (after publishing)

npx spirit-cards-mcp

Run from source

npm install
node src/index.mjs      # starts the stdio server (logs to stderr)

The server speaks MCP over stdin/stdout and logs only to stderr — it is normally launched by an MCP client, not by hand.

Use in Claude Desktop

Add this to claude_desktop_config.json (~/Library/Application Support/Claude/ on macOS, %APPDATA%\Claude\ on Windows):

{
  "mcpServers": {
    "spirit-cards": {
      "command": "npx",
      "args": ["-y", "spirit-cards-mcp"],
      "env": { "SPIRIT_CARDS_API": "https://spiritcards.fun" }
    }
  }
}

Use in Cursor

Add this to .cursor/mcp.json (project) or ~/.cursor/mcp.json (global):

{
  "mcpServers": {
    "spirit-cards": {
      "command": "npx",
      "args": ["-y", "spirit-cards-mcp"],
      "env": { "SPIRIT_CARDS_API": "https://spiritcards.fun" }
    }
  }
}

Configuration

Env var	Default	Meaning
`SPIRIT_CARDS_API`	`https://spiritcards.fun`	Base URL of the hosted site/API

All data endpoints are read-only GETs:

/.well-known/ai.json — project descriptor (chain id, core contract, mechanics, links)
/stats/current.json — live supply, price, required difficulty (baseBits), cooldown
/api/meta/{tokenId} — card metadata
/api/points — points leaderboard
/api/pool — staking pool / emissions snapshot (accrued pool, split shares, vault weight)
/api/recent — recent on-chain activity

Tools

Tool	Args	Description
`get_project_info`	—	`/.well-known/ai.json` + a composed human `summary`
`get_collection_stats`	—	Live stats: supply, price, `baseBits`, cooldown, paused flag
`get_card`	`tokenId`	Card metadata (`/api/meta/{tokenId}`)
`get_leaderboard`	`limit?` (default 25)	Points leaderboard, trimmed to `limit`
`get_pool`	—	Staking pool: accrued pool, split shares, vault weight (undistributed)
`get_recent_activity`	`limit?` (default 10)	Recent events, trimmed to `limit`
`verify_nonce`	`miner`, `nonce`	Verify a nonce's work locally (no tx): `{work, leadingZeroBits, valid}`
`find_nonce`	`miner`, `maxAttempts?` (≤5M)	Grind nonce 0.. until valid (~20 s wall cap)
`get_mining_guide`	—	Step-by-step mint guide with live price/difficulty/cooldown

Proof-of-work

A nonce is valid when:

work = keccak256(abi.encodePacked(uint256 chainId, address core, address miner, uint256 nonce))
leadingZeroBits(work) >= baseBits

Both verify_nonce and find_nonce compute this locally with viem's keccak256 over concatHex([chainId, core, miner, nonce]) — byte-for-byte identical to Solidity's abi.encodePacked.

Prompts

Prompt	Args	Description
`project_overview`	—	Introduce the game to a newcomer (calls the info + stats tools)
`start_mining`	`wallet?`	Walk through finding a nonce and the exact mint transaction

Hosted HTTP MCP

Prefer HTTP over stdio? The same server is also hosted at:

https://spiritcards.fun/api/mcp

License

Reviews

No reviews yet

Be the first to review this server!

4.8

Local

mcp-creator-python

Free

by mcp-marketplace · Developer Tools

Create, build, and publish Python MCP servers to PyPI — conversationally.