Gembook — PSA Vintage Pokémon Prices & Pop

Connect Remote server

claude mcp add --transport http gembook https://gembook.xyz/api/mcp/mcp

{
  "mcpServers": {
    "gembook": {
      "url": "https://gembook.xyz/api/mcp/mcp"
    }
  }
}

{
  "servers": {
    "gembook": {
      "type": "http",
      "url": "https://gembook.xyz/api/mcp/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://gembook.xyz/api/mcp/mcp

Tools 3 found in our last check

• lookup_card_price

  Get Gembook's fair-value estimate (USD) for a PSA-graded vintage Pokémon card (WotC era, Base Set through Skyridge, 1999–2003). Returns fair value, range, confidence tier, comp count, and the card page URL. Call this when a user asks what a vintage Pokémon card is worth or wheth…

• lookup_pop_report

  Get the PSA population (number of slabs graded per grade) for a vintage Pokémon card across all grades. Call this when a user asks how rare a PSA grade is for a card. Scope: PSA-graded vintage Pokémon (Base Set through Skyridge).

• get_methodology_summary

  Returns a short summary of Gembook's valuation + trust methodology (what counts as a verified sale, confidence tiers, published error rates). Call this when a user asks how the prices are computed or whether they can be trusted.

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