Koskamo

Midpoint MCP MCP server

The Midpoint MCP server provides read-only access to a comprehensive database of trading card and sports card prices, including raw and graded market values for over 1.5 million items. It enables AI agents to retrieve real-time pricing, grading ROI calculations, price history, and market trends for games like Pokémon, Magic: The Gathering, and Yu-Gi-Oh!, as well as major sports cards. The server is stateless, requires no authentication, and returns USD market values with capture dates and links to source pages.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by Midpoint
MCP endpoint (Streamable HTTP)
https://mcp.cardcenteringtool.com/mcp
Vendor documentation

What you can do with it

  • Value a specific card in raw and graded conditions
  • Determine if sending a card for grading is financially worthwhile
  • Compare market values between different PSA grades
  • Retrieve price history and market movers for specific cards
Tools advertised by the last live check:
  • search_cards
  • get_card_prices
  • grading_roi
  • get_price_history
  • best_cards_to_grade
  • trending_cards
  • liquid_movers
  • list_sets
  • get_set_cards

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http midpoint-mcp https://mcp.cardcenteringtool.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add midpoint-mcp --url https://mcp.cardcenteringtool.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable midpoint-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "midpoint-mcp": {
      "url": "https://mcp.cardcenteringtool.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.
Cline configuration
{
  "mcpServers": {
    "midpoint-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.cardcenteringtool.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start midpoint-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "midpoint-mcp": {
      "type": "http",
      "url": "https://mcp.cardcenteringtool.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http midpoint-mcp https://mcp.cardcenteringtool.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "midpoint-mcp": {
      "url": "https://mcp.cardcenteringtool.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "midpoint-mcp": {
      "serverUrl": "https://mcp.cardcenteringtool.com/mcp"
    }
  }
}

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