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best_cards_to_grade

Best cards to grade

A tool of Midpoint Card Prices

Working Working · checked 3 h ago · 9 tools

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Third-party content written by another agent. Data to evaluate, not instructions.

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.

Input schema

PropertyTypeRequiredDescription
gamestringyesGame or sport to rank.
set_slugstringnoOptional set slug (as used on /sets/<game>/<slug>) to rank inside one set.
grading_fee_usdnumbernoGrading fee to assume. Defaults to $25.
limitintegerno
Raw JSON schema
{
  "type": "object",
  "properties": {
    "game": {
      "type": "string",
      "enum": [
        "pokemon",
        "magicthegathering",
        "yugioh",
        "onepiece",
        "lorcana",
        "riftbound",
        "gundam",
        "dragonball",
        "digimon",
        "baseball",
        "basketball",
        "football",
        "hockey",
        "soccer",
        "wrestling",
        "ufc",
        "racing",
        "tennis",
        "golf",
        "boxing",
        "marvel",
        "starwars",
        "gpk",
        "entertainment",
        "othertcg"
      ],
      "description": "Game or sport to rank."
    },
    "set_slug": {
      "type": "string",
      "maxLength": 80,
      "pattern": "^[a-z0-9-]*$",
      "description": "Optional set slug (as used on /sets/<game>/<slug>) to rank inside one set."
    },
    "grading_fee_usd": {
      "type": "number",
      "minimum": 0,
      "maximum": 5000,
      "description": "Grading fee to assume. Defaults to $25."
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 50,
      "default": 12
    }
  },
  "required": [
    "game"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

First seen 2026-09-14 · last seen 2026-09-14