Midpoint Card Prices

by cardcenteringtool.com · remote · no sign-in to list tools · v1.0.0 · published by com.cardcenteringtool

Trading card prices and grading ROI for 1.5M+ Pokémon, Magic, Yu-Gi-Oh! and sports cards. Read-only.

Changes · 4

Compare Registry entry

9 tools: 4 change things and 5 only read.

Scanned Oct 21, 2026

Deletes or cancels0Claude Code: deny
Can't be undone0Claude Code: ask
Changes things4Claude Code: ask: see these tools
Only reads5Claude Code: allow: see these tools

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http card-prices https://mcp.cardcenteringtool.com/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

9 tools

Changes things 4Creates or changes something that can be changed back.Claude Code: ask

best_cards_to_gradeUse this when the user asks which cards in a game, sport or set have the biggest payoff from grading.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Use this when the user asks which cards in a game, sport or set have the biggest payoff from grading. Ranks priced cards by expected net profit at a 50% gem rate (half PSA 10, half PSA 9, minus raw and the fee), requiring both PSA 9 and PSA 10 prices so thin-market outliers are excluded. Returns card ids for grading_roi. Do not use for a single named card.
Annotations the server declares
- title: Best cards to grade
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
grading_roiUse this when the user asks whether a card is worth grading, submitting to PSA/CGC/BGS/SGC/TAG, or what a PSA 10 adds.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Use this when the user asks whether a card is worth grading, submitting to PSA/CGC/BGS/SGC/TAG, or what a PSA 10 adds. Returns raw vs PSA 9 vs PSA 10 market prices, the gem premium, net profit after grading fees per outcome, expected value by gem probability, the break-even gem rate, which company pays most, and a plain-language verdict. Requires a card id from search_cards. It does not assess the condition of the user's copy.
Annotations the server declares
- title: Is this card worth grading?
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
liquid_moversUse this when the user wants cards that are both rising in price and easy to sell: recent gainers filtered to cards with at least 25 recorded sales a year and a raw price of at lea…No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Use this when the user wants cards that are both rising in price and easy to sell: recent gainers filtered to cards with at least 25 recorded sales a year and a raw price of at least $5, across all games and sports. Better than trending_cards for flipping or selling decisions. Do not use for a single named card.
Annotations the server declares
- title: Liquid movers (rising cards that actually sell)
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
trending_cardsUse this when the user asks which cards are rising, hot, spiking, crashing or trending, in one game or across all games.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Use this when the user asks which cards are rising, hot, spiking, crashing or trending, in one game or across all games. Returns the biggest 30-day gainers (or drops) with the percentage change, measured on the PSA 10 price where the card has one and on the raw price otherwise; moves over 300% are excluded as bad data. Do not use for a single named card or for long-term history.
Annotations the server declares
- title: Trending cards (30-day price movers)
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

Only reads 5Looks things up and changes nothing.Claude Code: allow

get_card_pricesUse this when the user wants the full current value of a specific card: ungraded prices by condition (NM/LP/MP/HP) and graded prices for every company and grade on record (PSA, CGC…No findings
Why it is in this group
- The name "get_card_prices" says "get": a word for reading.
Description, as the server wrote it
Use this when the user wants the full current value of a specific card: ungraded prices by condition (NM/LP/MP/HP) and graded prices for every company and grade on record (PSA, CGC, BGS, SGC, TAG). Requires a card id from search_cards. Prices are USD market values from real sold listings, refreshed daily. Do not use to search by name.
Annotations the server declares
- title: Get card price ladder
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
get_price_historyUse this when the user asks how a card's price has changed over weeks or months, or wants a trend for the raw or a PSA-graded series.No findings
Why it is in this group
- The name "get_price_history" says "get": a word for reading.
Description, as the server wrote it
Use this when the user asks how a card's price has changed over weeks or months, or wants a trend for the raw or a PSA-graded series. Returns dated USD market values for the last 7 to 180 days. Requires a card id from search_cards. Do not use for forecasts.
Annotations the server declares
- title: Get price history
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
get_set_cardsUse this when the user wants the most valuable cards in a specific set or a priced checklist of a set.No findings
Why it is in this group
- The name "get_set_cards" says "get": a word for reading.
Description, as the server wrote it
Use this when the user wants the most valuable cards in a specific set or a priced checklist of a set. Requires a set id from list_sets. Returns raw and PSA 10 USD prices per card. Do not use for a single named card; use search_cards instead.
Annotations the server declares
- title: Cards in a set with prices
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
list_setsUse this to find the set id for a game or sport (e.g.No findings
Why it is in this group
- The name "list_sets" says "list": a word for reading.
Description, as the server wrote it
Use this to find the set id for a game or sport (e.g. "Evolving Skies", "2019 Panini Prizm") before calling get_set_cards, or when the user asks which sets exist. Newest first. Do not use to price a single card.
Annotations the server declares
- title: List sets / expansions
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
search_cardsUse this first when the user names a trading card and wants its value, price, or whether to grade it.No findings
Why it is in this group
- The name "search_cards" says "search": a word for reading.
Description, as the server wrote it
Use this first when the user names a trading card and wants its value, price, or whether to grade it. Searches 1.5M+ Pokémon, Magic, Yu-Gi-Oh!, One Piece, Lorcana, sports (baseball, basketball, football, hockey, soccer, wrestling, UFC and more) and entertainment cards by name, set, number and year, returning ungraded and PSA 10 market prices in USD from real sold listings. Returns card ids for get_card_prices, grading_roi and get_price_history. Do not use for sealed product, for cards you already have an id for, or for price prediction.
Annotations the server declares
- title: Search card prices
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http card-prices https://mcp.cardcenteringtool.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__card-prices__search_cards",
      "mcp__card-prices__get_card_prices",
      "mcp__card-prices__get_price_history",
      "mcp__card-prices__list_sets",
      "mcp__card-prices__get_set_cards"
    ],
    "ask": [
      "mcp__card-prices__grading_roi",
      "mcp__card-prices__best_cards_to_grade",
      "mcp__card-prices__trending_cards",
      "mcp__card-prices__liquid_movers"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as card-prices. Review it before you use it.

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/com.cardcenteringtool/card-prices/changes.xml

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Source: MCP Registry · repository. Synced Oct 21, 2026, 17:52 UTC.

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