Tcg Price Japan

io.github.atushi1841v1.0.0Updated Oct 3, 2026

Japan TCG (Pokemon) used-price trends from suruga-ya.jp. Tools: price, history, movers.

VerifiedSTDIODesktop onlyFinanceData & Analytics

Overview

AI-generated overview

Read-only MCP server that answers questions about Japanese Pokemon trading-card used prices from a bundled suruga-ya.jp snapshot.

What it does
Exposes three read-only tools over a bundled dataset of 960 price observations collected from suruga-ya.jp: tcg_current_price returns the latest used, new, and list price snapshot in JPY for an item; tcg_price_history returns a price time series oldest first, with a default limit of 50; tcg_top_movers returns the biggest absolute JPY movers, optionally filtered up or down, default limit 10.
When to use it
Useful when you want an assistant to look up Japanese Pokemon card used-price levels, trace how a card's price changed over the snapshot period, or surface the largest price movers without browsing a marketplace by hand.
Requirements
Runs locally as a stdio MCP process, desktop only. Needs Python and fastmcp>=3.0.0 from requirements.txt. No network access, API key, or account is required; the data is a bundled file (data/accumulated.jsonl).
Before you install
The data is a fixed snapshot dated 2026-09-21 with 960 observations, so prices are not live and coverage is limited to what was collected. All tools are read-only; nothing is written, sent, or purchased.

Installation

In SourceWeft

  1. Open Tcg Price Japan in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

tcg-price-japan — Japan TCG Used-Price MCP Server

Read-only MCP server exposing the kensho Japan TCG (Pokemon / trading card) used-price dataset collected from suruga-ya.jp.

Tools

ToolDescription
tcg_current_price(item)Latest used/new/list price snapshot (JPY) for an item
tcg_price_history(item, limit=50)Price time series (oldest first)
tcg_top_movers(direction, limit=10)Biggest |delta JPY| movers, optional up/down filter

Data

  • Source: data/accumulated.jsonl (960 observations, snapshot 2026-09-21)
  • Marketplace: suruga-ya.jp
  • No network, no API key, no account required

Run

bash
python server/server.py          # stdio MCP transportpython server/server.py --http   # streamable-http at /mcp

Requires fastmcp>=3.0.0 (see requirements.txt).

MCP Bundle

manifest.json follows the MCPB v0.4 spec. Pack with:

bash
npx -y @anthropic-ai/mcpb pack . dist/tcg-price-japan.mcpb

Source: README.md at commit c7969c8

Tools

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Version history

1
  1. v1.0.0LatestOct 3, 2026