CardWorthScanner — TCG Price, Centering & PSA Grading ROI Engine
RemoteAbout CardWorthScanner — TCG Price, Centering & PSA Grading ROI Engine
CardWorthScanner is an MCP server for TCG collectors, card investors, and shop owners. It provides tools for grading ROI calculations, card-centering checks, and market-price lookups across trading cards.
Key features
- 01Calculate grading profit and ROI
- 02Estimate grading break-even probability
- 03Measure card centering ratios
- 04Look up market prices and sales comps
Use cases
- 01Assess whether grading a card may pay off
- 02Check centering against grading standards
- 03Compare raw and graded card prices
MCP support
The server provides three stateless tools through a public Streamable HTTP endpoint at `https://cardworthscanner.com/api/mcp`. No authentication is required.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://cardworthscanner.com/api/mcpclaude mcp add --transport http com-cardworthscanner https://cardworthscanner.com/api/mcp{"mcpServers":{"com-cardworthscanner":{"type":"http","url":"https://cardworthscanner.com/api/mcp"}}}Open in Cursor{"servers":{"com-cardworthscanner":{"type":"http","url":"https://cardworthscanner.com/api/mcp"}}}Open in VS Code{"mcpServers":{"com-cardworthscanner":{"type":"http","url":"https://cardworthscanner.com/api/mcp"}}}{"mcpServers":{"com-cardworthscanner":{"serverUrl":"https://cardworthscanner.com/api/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
Details
From the project READMECardWorthScanner MCP Server
Official Model Context Protocol (MCP) server for CardWorthScanner.com — The premier AI and deterministic analytics platform for Trading Card Game (TCG) collectors, sports card investors, and card shop owners.
Provides instant programmatic access to PSA/BGS/CGC grading ROI calculations, card optical centering measurements, and live market price comps across Pokemon, Magic: The Gathering (MTG), Yu-Gi-Oh!, and vintage sports cards.
⚡ Live Stateless MCP Endpoint
- Endpoint URL:
https://cardworthscanner.com/api/mcp - Transport: Stateless Streamable HTTP (JSON-RPC 2.0)
- Authentication: None required (Free public access)
Connecting to Claude Desktop / Cursor / Windsurf
Add this to your MCP configuration (claude_desktop_config.json or mcp.json):
{
"mcpServers": {
"cardworthscanner": {
"url": "https://cardworthscanner.com/api/mcp"
}
}
}
🛠️ Available Tools
1. calculate_psa_grading_roi
Calculate deterministic net profit, ROI %, expected value (EV), and break-even Gem Mint probability when submitting cards to PSA, BGS, or CGC.
- Inputs:
raw_card_cost,grading_fee,shipping_and_insurance,sales_tax_or_declared_value,expected_psa_10_market_price,expected_psa_9_market_price,marketplace_fee_pct - Returns: Net profit breakdown, ROI %, break-even Gem Mint rate, expected value after 12.5% marketplace commission.
2. calculate_card_centering_grade
Inspect card optical borders and determine if a card meets PSA 10 (55/45 front, 75/25 back) or BGS 9.5 (50/50) centering standards.
- Inputs:
left_border_px,right_border_px,top_border_px,bottom_border_px - Returns: Front/back centering ratio, PSA/BGS subgrade prediction, optical alignment verdict.
3. lookup_tcg_card_market_price
Query live market price benchmarks, historical sales comps, and graded price spreads.
- Inputs:
card_name,set_name,card_number,condition - Returns: Raw TCGplayer USD, Cardmarket EUR, PSA 9, PSA 10, and BGS 9.5 graded market pricing.
🌐 Official Platform
Explore real-time card scanners, visual centering camera tools, and portfolio trackers at CardWorthScanner.com.
Comments
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.
