MCP.Market

Sports Card Agent MCP server

by rjexile·io.github.rjexile/sports-card-agent·v1.0.1·2 stars
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Sports card pricing, market analysis, grading ROI, and player stats (NBA/NFL/MLB)

C66/100grade C
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Safety scan
C66/100

full report

Adoption
New

2 stars17 downloads/wk

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Sports Card Agent tools (9)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • card_investment_advisor

    Get a buy/sell/hold recommendation for a sports card based on market trends and player performance data.

  • card_market_analysis

    Full market analysis for a sports card: price trends, buy/sell spread, and arbitrage opportunities where cards are listed below market value.

  • card_price_lookup

    Look up current market prices for a sports trading card.

  • grading_roi_calculator

    Calculate whether it's worth paying to professionally grade a sports card. Compares raw card value vs graded card value, factoring in grading costs, turnaround time, and marketplace fees.

  • mlb_stats_lookup

    Look up MLB player stats and get card market insights. Covers batting stats (AVG, HR, RBI, OPS) and pitching stats (ERA, K, WHIP, W-L).

  • nfl_stats_lookup

    Look up NFL player stats and get card market insights. Covers passing, rushing, receiving, and defensive stats.

  • player_stats_lookup

    Look up player stats for NBA, NFL, or MLB and get card market insights based on their performance.

  • trending_players

    Get a list of NBA players with breakout performances whose trading cards are likely rising in value. Scans a curated watchlist of young stars and ascending players.

  • vintage_card_analysis

    Specialized analysis for vintage and classic sports cards (pre-2000). Provides era-specific insights, condition sensitivity analysis, grade-based pricing, and investment outlook.

Public scan report

scanner v0.1.10 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • Code scan13 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 187 days ago4/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 66/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Sports Card Agent compares

Against every graded AI and agents MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
66/100
higher than 28% of 4,460 AI and agents servers
Tools
9
the typical AI and agents server has 6
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
GitHub stars
2
more than 65% of 2,711 AI and agents servers
Downloads a week
17
more than 4% of 1,538 AI and agents servers with a package

What its tools let an agent do: 9 read

Install Sports Card Agent in Claude Code, Cursor or VS Code

claude mcp add sports-card-agent -- uvx sports-card-agent
Add to Cursor

What the publisher says

From the Sports Card Agent repository's README, as published. We do not edit it. Read it on GitHub

Sports Card Agent

<!-- mcp-name: io.github.rjexile/sports-card-agent -->

An MCP server that gives AI agents expert-level sports trading card data. Covers pricing, market analysis, arbitrage detection, grading ROI, investment advice, player stats (NBA/NFL/MLB), vintage card analysis, and trending player alerts.

9 tools. 3 sports. 40+ vintage sets. Zero manual research.

Tools

Pricing & Market

Player Stats

Analysis & Strategy

Quick Start

Install from PyPI

pip install sports-card-agent

Run the server

sports-card-agent

Use with Claude Desktop

Add to your claudedesktopconfig.json:

{
  "mcpServers": {
    "sports-card-agent": {
      "command": "sports-card-agent"
    }
  }
}

Use with Claude Code

Add to your .mcp.json:

{
  "mcpServers": {
    "sports-card-agent": {
      "command": "sports-card-agent"
    }
  }
}

Configuration

Create a .env file or set environment variables:

# eBay API (register free at developer.ebay.com)
EBAY_APP_ID=your_app_id
EBAY_CERT_ID=your_cert_id

# Ball Don't Lie API (register free at app.balldontlie.io)
BALLDONTLIE_API_KEY=your_api_key

The server works without API keys using mock data, so you can try it immediately.

Example Queries

Once connected, any AI agent can ask:

  • "What's a 2023 Topps Chrome Wembanyama rookie selling for?"
  • "Should I buy or sell my Patrick Mahomes rookie card?"
  • "Is it worth grading my 1986 Fleer Jordan?"
  • "Who are the trending NBA players whose cards are rising?"
  • "Analyze the market for Ken Griffey Jr 1989 Upper Deck rookie"
  • "What's the investment outlook on vintage 1952 Topps Mickey Mantle?"
  • "How is Shohei Ohtani performing this season and what does that mean for his cards?"

Sports & Sets Covered

Sports: Baseball, Basketball, Football, Hockey, Soccer

Player Stats: NBA (all teams), NFL (all positions), MLB (batting + pitching)

Vintage Sets Include: 1909 T206, 1933 Goudey, 1951 Bowman, 1952 Topps, 1954-55 Topps, 1958 Topps Football, 1961 Fleer Basketball, 1965 Topps Football, 1966 Topps Hockey, 1969 Topps, 1979 O-Pee-Chee, 1981 Topps Football, 1984 Topps Football, 1986 Fleer Basketball, 1986 Donruss, 1989 Upper Deck, 1993 SP, 1996 Topps Chrome, 1997 Metal Universe, 2000 Playoff Contenders, and more.

Grading Companies: PSA, BGS, SGC (all service tiers with current pricing)

Development

git clone https://github.com/rjexile/sports-card-agent.git
cd sports-card-agent
python -m venv venv
source venv/Scripts/activate  # Windows
pip install -e .
python test_all.py  # Run all 29 tests

License

MIT

Nothing above is checked by us. What we check is on the safety report.

Sports Card Agent: common questions

Is Sports Card Agent MCP server safe?
With care: it is graded C, so read the findings first (66/100). Read the Sports Card Agent safety report
How do I install Sports Card Agent?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Sports Card Agent need an API key?
Yes. The registry entry asks for EBAY_APP_ID, EBAY_CERT_ID, BALLDONTLIE_API_KEY.
Is Sports Card Agent maintained?
The last commit was 224 days ago (2026-03-24). The latest release is v1.0.1.
What can I use instead of Sports Card Agent?
Servers from other publishers that do the same job: MCP Server for WinDbg Crash Analysis, Stata MCP server and three.ws 3D Agent Tools MCP server.
How does Sports Card Agent compare with other AI and agents MCP servers?
safety score 66/100 (higher than 28% of 4,460 AI and agents servers); tools 9 (the typical AI and agents server has 6); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

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