JustTCG is a dedicated REST API for Trading Card Game pricing data. We provide accurate, market-driven pricing for Magic: The Gathering, Pokémon, Yu-Gi-Oh!, Disney Lorcana, One Piece TCG, Flesh and Blood, Digimon, and more — built specifically for developers.

How often is the pricing data updated?

Our pricing data is updated continuously from real sales data across all major online TCG marketplaces, with full refreshes throughout the day. Price trend data covers 7-day, 30-day, 90-day, and 180-day windows.

Do you offer a free tier?

Yes. The Free plan includes 1,000 API requests per month and 100 per day. No credit card is required to sign up.

Which Trading Card Games do you support?

JustTCG supports Magic: The Gathering, Pokémon (English and Japanese), Yu-Gi-Oh!, Disney Lorcana, One Piece Card Game, Digimon Card Game, Flesh and Blood TCG, Grand Archive TCG, Gundam Card Game, Star Wars: Unlimited, Riftbound: League of Legends TCG, and Union Arena. We continuously add new games.

How do I authenticate with the JustTCG API?

All API requests require an API key passed in the X-API-Key HTTP header. You can get your API key from your dashboard at justtcg.com/dashboard after signing up for a free account.

Is there an MCP server for AI agents?

Yes. JustTCG provides a hosted Model Context Protocol (MCP) server at mcp.justtcg.com. This allows MCP-compatible AI agents like Claude, Cursor, and Windsurf to query real-time TCG pricing data directly, using the same API key as the REST API.

Where do you get your pricing data?

Our pricing is market-driven. JustTCG analyzes real sales data from all major online TCG marketplaces and applies a volume-weighted average so that platforms with higher sales volume have greater influence on the final price. This produces the most stable and accurate snapshot of a card's market value.

/mcp

Beta

Add the JustTCG MCP server to your favorite coding agents with a single command. Supports Claude Code, Cursor, OpenCode, VSCode, and more.

GEThttps://mcp.justtcg.com

Install

Use the add-mcp CLI to automate configuration across LLMs and IDEs at both project and global scope.

install

npx add-mcp https://mcp.justtcg.com --header "x-api-key: YOUR_API_KEY"

Some agents natively detect the connection string format, while others may require the transport layer to be explicitly set.

Example prompt usages

"Analyze the price trajectory of the latest Pokemon set."
"What is the best performing TCG set released in the last 6 months?"
"Give me a 5 item list of Magic cards that I should consider collecting based on strong performance."

Troubleshooting

Verify the JustTCG server URL is correctly specified (https://mcp.justtcg.com).
Check your agent's explicit MCP configuration JSON for unescaped characters.
In VS Code or Cursor, confirm that the transport layer supports raw HTTP stream handling natively.