TCGplayer API

An SDK and REST API wrapper for TCGplayer providing structured access to trading card data including Pokemon, Magic: The Gathering, and other TCGs — with an MCP server for Claude Code integration.

Disclaimer: This SDK, REST API wrapper, and MCP server is an unofficial tool created for educational purposes only. It is not affiliated with, maintained, or endorsed by TCGplayer. Use of these tools may violate TCGplayer's terms of service.

Installation

npm install @deansasek/tcgplayer-api

SDK

The SDK provides a typed, class-based interface organized by resource.

import { TCGplayerClient } from '@deansasek/tcgplayer-api/sdk';

const client = new TCGplayerClient();

// Search
const results = await client.search.autocomplete('morpeko');

// Product details
const product = await client.products.details(704874);

// Price history
const history = await client.products.priceHistory(704874, { range: 'quarter' });

SDK Resources

Resource	Methods
client.products	details(), listings(), sales(), priceHistory(), volatility(), buylistPrice(), infinite(), recommendations()
client.search	autocomplete(), fullSearch(), bestsellers(), trending()
client.pricing	skuMarketPrices()
client.catalog	productLines(), categoryFilters(), latestSets(), setName(), catalogGroups(), verticals(), countryCodes()
client.content	articles(), trendingArticles(), tags(), kickbacks(), normalizeCardName()

SDK Example: Card Analysis

import { TCGplayerClient } from '@deansasek/tcgplayer-api/sdk';

const client = new TCGplayerClient();

async function analyzeCard(productId: number) {
  const [details, sales, history] = await Promise.all([
    client.products.details(productId),
    client.products.sales(productId),
    client.products.priceHistory(productId, { range: 'month' }),
  ]);

  console.log(`${details.productName} (${details.setName})`);
  console.log(`Market Price: $${details.marketPrice}`);
  console.log(`Sellers: ${details.sellers}`);

  if (sales.data.length > 0) {
    const last = sales.data[0];
    console.log(`Last Sale: $${last.purchasePrice} (${last.condition})`);
  }

  return { details, sales, history };
}

analyzeCard(704874); // Morpeko ex

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REST API (Backward Compatible)

Flat function exports for direct API access.

import { autocomplete, getProduct } from '@deansasek/tcgplayer-api';

autocomplete(query, options?)

Search for products by name.

const results = await autocomplete('charizard', { productLine: 'Pokemon' });

search(options?)

Full search with filters, sorting, and pagination.

const results = await search({
  q: 'charizard',
  productLine: 'Pokemon',
  from: 0,
  size: 24,
});

getProduct(productId)

Convenience function combining details, sales, and price history.

const product = await getProduct(704874);
// Returns: { details, sales, priceHistory }

Other Functions

Function	Description
getProductDetails(id)	Full product information
getLatestSales(id, options?)	Recent sales with filters
getPriceHistory(id, options?)	Historical pricing (range: week|month|quarter|year)
getVolatility(skuId)	Market volatility for a SKU
getBuylistPrice(id)	Buylist/market prices
getSkuMarketPrices(skuIds)	Bulk SKU pricing
getProductListings(id, options?)	Detailed seller listings
getProductLines()	All available product lines
getCategoryFilters(categoryId?)	Filter options for a category
getLatestSets(productLineIds?)	Latest sets
getSetName(setId)	Set information
getFacetedRecommendations(productIds, options?)	Related products
getKickbacks()	Active promotions
getTags()	Product attribute tags
getVerticals()	Game verticals
getBestsellers(options?)	Best-selling products
getTrending(options?)	Trending suggestions
getCatalogGroups()	TCG vs Tabletop categories
getFreeShippingThreshold()	Free shipping minimum
getCountryCodes()	Shipping country list
getArticles(options?)	Articles by vertical
getTrendingArticles(options?)	Trending articles
getInfiniteProduct(id)	Simplified product data
normalizeCardName(name)	Normalize card name

Condition Values

Value	Condition
1	Unopened
2	Damaged
3	Heavily Played
4	Moderately Played
5	Lightly Played
6	Near Mint
7	Mint

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MCP Server (Claude Code Integration)

The MCP server enables Claude Code to interact with TCGplayer data directly.

Installation

Claude Code automatically detects .mcp.json:

{
  "mcpServers": {
    "tcgplayer-api-mcp": {
      "command": "node",
      "args": ["dist/mcp/server.js"],
      "cwd": "/Users/deansasek/Documents/Projects/tcgplayer"
    }
  }
}

Available MCP Tools

Tool	Description
tcgplayer_autocomplete	Search for products by name
tcgplayer_search	Search with filters and pagination
tcgplayer_product	Full product data (details, sales, price history)
tcgplayer_product_details	Detailed product information
tcgplayer_latest_sales	Recent sales data
tcgplayer_price_history	Historical pricing data
tcgplayer_volatility	Market volatility for a SKU
tcgplayer_buylist_price	Buylist/market prices
tcgplayer_category_filters	Filter options (conditions, languages, variants)
tcgplayer_product_lines	All available product lines
tcgplayer_latest_sets	Latest sets for product lines
tcgplayer_product_listings	Detailed seller listings
tcgplayer_set_name	Set information by set ID
tcgplayer_recommendations	Faceted product recommendations
tcgplayer_kickbacks	Active kickback promotions
tcgplayer_tags	Product attribute tags
tcgplayer_verticals	Available game verticals
tcgplayer_bestsellers	Best-selling products
tcgplayer_trending	Trending product suggestions
tcgplayer_catalog_groups	Catalog groups (TCG vs Tabletop)
tcgplayer_free_shipping_threshold	Free shipping minimum
tcgplayer_country_codes	Shipping country codes
tcgplayer_articles	Articles for a vertical
tcgplayer_trending_articles	Trending articles
tcgplayer_infinite_product	Simplified product data
tcgplayer_normalize_card_name	Normalize card name
tcgplayer_render_card	Render a card as ASCII art

MCP Usage Examples

User: Search for Morpeko cards
Claude uses: tcgplayer_search with q="morpeko"

User: Get latest sales for product 704874
Claude uses: tcgplayer_latest_sales with productId=704874

User: What conditions are available for Pokemon?
Claude uses: tcgplayer_category_filters with categoryId="3"

User: Show me Charizard as ASCII art
Claude uses: tcgplayer_render_card with productId=546343

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Development

npm run build    # Compile TypeScript
npm run clean   # Remove dist folder
npm run dev     # Run server.ts directly
npm run mcp     # Run MCP server directly

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Environment

• Node.js 18+ recommended (uses native fetch)
• TypeScript with strict mode
• ES Modules (type: "module")

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License

This project is dedicated to the public domain under the Unlicense.