Gembook — PSA Vintage Pokémon Prices & Pop
xyz.gembook/gembook
Neutral prices + PSA population for PSA-graded vintage Pokémon (WotC 1999–2003). Read-only.
This endpoint completed initialize and tools/list. No tool was called.
- Rank
- #1709
- Score
- 82
- Tool tokens
- 660
- Tools
- 3
Tools
Token cost is the o200k count of the tools list JSON, including schemas, before any tool is called.
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 pag
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
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
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