Onepiece MCP Server

One Piece TCG MCP server with card search, deck analysis, and set browsing

Local serverstdio

What is the Onepiece MCP server?

Onepiece MCP server exists for a simple reason — assistants are far more useful when they can act on Onepiece directly instead of describing what you should do. One Piece TCG MCP server with card search, deck analysis, and set browsing.

What the assistant can call

Once Onepiece is connected, these are the calls the assistant has available:

  • search_cards — Full-text search with filters for color, type, cost, power, rarity, attribute, character type, and set
  • browse_sets — List all sets with card counts, or view cards in a specific set
  • card_versions — Show all printings of a card including alternate art variants
  • browse_leaders — Browse all Leader cards, optionally filtered by color
  • analyze_cost_curve — Parse a deck list and show cost distribution, color breakdown, type spread, and counter summary
  • find_counters — Find cards with counter values for defensive deck building

Setting it up

onepiece-oracle on npm is all you need. Most clients run it directly, so configuration is a few lines and a restart.

Choosing this one

Plenty of developer tooling servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. Onepiece's toolset — search_cards, browse_sets, card_versions and 3 more — is a fair guide to whether it matches your workflow. It is maintained by gregario; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

Before you rely on it

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the onepiece mcp server does with a few real requests.

Available tools

ToolWhat it does
search_cardsFull-text search with filters for color, type, cost, power, rarity, attribute, character type, and set.
browse_setsList all sets with card counts, or view cards in a specific set.
card_versionsShow all printings of a card including alternate art variants.
browse_leadersBrowse all Leader cards, optionally filtered by color.
analyze_cost_curveParse a deck list and show cost distribution, color breakdown, type spread, and counter summary.
find_countersFind cards with counter values for defensive deck building.

How to install the Onepiece MCP server

{
  "mcpServers": {
    "onepiece-oracle": {
      "command": "npx",
      "args": ["-y", "onepiece-oracle"]
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Example prompts to try

  • Use Onepiece to search cards.
  • Use Onepiece to browse sets.
  • Use Onepiece to card versions.

Frequently asked questions

It connects Onepiece to MCP-compatible AI assistants such as Claude and Cursor, exposing 6 tools (search_cards, browse_sets, card_versions, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Onepiece directly.