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100
MCP live MCP 2025-11-25 streamable-http

Gembook — PSA Vintage Pokémon Prices & Pop

xyz.gembook/gembook

Neutral prices + PSA population for PSA-graded vintage Pokémon (WotC 1999–2003). Read-only.

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Get before/after evidence when observed tools, schemas, authentication access, availability or the endpoint changes.

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Uptime
100.0%
5 direct probes · 30d
Response
896ms
last probe
Tools
3
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://gembook.xyz/api/mcp/mcp
Score: 100/100
Handshake verified by our own probe.
why this score
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
3 tools, 0 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
3 items in total; 3 or more earns these points.
pass Describes itself 10/10
91 characters; more than 30 earns these points.

Tools · 3

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 …

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "gembook_\u2014_psa_vintage_pok\u00e9mon_prices_\u0026_pop": {
      "url": "https://gembook.xyz/api/mcp/mcp",
      "transport": "streamable-http"
    }
  }
}