CardWorthScanner — TCG Price, Centering & PSA Grading ROI Engine

com.cardworthscannerPublished by cardworthscanner.comOfficial publisherv1.0.1Updated Nov 8, 2026

Calculate PSA/BGS/CGC card grading ROI, 55/45 centering grades & Pokemon/Yu-Gi-Oh market values.

VerifiedStreamable HTTPWeb executableFinanceBusiness & Commerce

Overview

AI-generated overview

A remote MCP server that lets an assistant compute trading-card grading ROI, check border centering against grader thresholds, and look up TCG market prices.

What you can do
  • Calculate grading economics: net profit, ROI %, expected value and break-even Gem Mint probability for PSA, BGS and CGC after marketplace fees
  • Measure card centering from left/right and top/bottom ratios and determine the best eligible grade under PSA, BGS, CGC and TAG rules
  • Look up raw and graded prices in USD and EUR for Pokemon, Yu-Gi-Oh! and sports cards by name or card number
When to use it
Useful when deciding whether a card is worth submitting for grading, when checking whether a card's centering meets a target grade, or when comparing raw versus graded market values before a purchase or sale.
Requirements
Remote streamable HTTP endpoint; no packages, environment variables or headers are declared, and no authentication is declared. Network access to the provider's endpoint is required.
Before you install
Price lookups and ROI results are estimates from third-party marketplace data and should not be treated as financial advice. The tools are described as read-only calculations and lookups; no writes or payments are declared.

Installation

In SourceWeft

  1. Open CardWorthScanner — TCG Price, Centering & PSA Grading ROI Engine in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.cardworthscanner%2Fmcp/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "cardworthscanner-tcg-price-centering-psa": {
      "type": "http",
      "url": "https://cardworthscanner.com/api/mcp"
    }
  }
}

README

This repository has no README.

Tools

3

calculate_psa_grading_roi

Calculate deterministic PSA / BGS / CGC card grading net profit, ROI %, expected value (EV), and break-even Gem Mint probability after 12.5% marketplace fees.

Parametersconditionpsa9MarketUsdrequiredpsa10MarketUsdrequiredrawNearMintUsdrequiredgradingServiceFeeUsd

calculate_card_centering_grade

Calculate trading card border centering ratios (Left/Right and Top/Bottom in mm or px) and determine maximum eligible grades across PSA (55/45), BGS (Black Label 50/50), CGC, and TAG.

ParameterstopMmrequiredleftMmrequiredrightMmrequiredbottomMmrequired

lookup_tcg_card_market_price

Look up raw TCGplayer USD, Cardmarket EUR, PSA 9, PSA 10, and BGS 9.5 graded prices for Pokemon, Yu-Gi-Oh!, and Sports cards by name or card number (e.g. "Charizard", "4/102", "Umbreon", "Blue-Eyes White Dragon").

Parameterslimitqueryrequired

Version history

1
  1. v1.0.1LatestNov 8, 2026

Score

75% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • License10 pts

    Declare a license in the repository or the registry entry.