Scryfall MCP Server

Instructions

Implementation Reference

• src/mcp-server.ts:253-256 (handler)

  The inline handler function for the 'list_sets' tool. It calls Scryfall.listSets() to fetch the data and returns it formatted as a ToolResult with JSON stringified text content.

  async (): Promise<ToolResult> => {
      const data: unknown = await Scryfall.listSets();
      return { content: [{ type: "text", text: JSON.stringify(data, null, 2) }] } as any;
  }

• src/mcp-server.ts:247-257 (registration)

  Registration of the 'list_sets' MCP tool using server.registerTool(). Includes tool name, description (no input schema since zero-arg), and the inline handler function.

  server.registerTool(
      "list_sets",
      {
          description: "List all sets available on Scryfall.",
          // No input schema for zero-arg tools
      } as any,
      async (): Promise<ToolResult> => {
          const data: unknown = await Scryfall.listSets();
          return { content: [{ type: "text", text: JSON.stringify(data, null, 2) }] } as any;
      }
  );

• src/scryfall.ts:106-106 (helper)

  Helper method in the Scryfall API wrapper object that fetches the list of all sets from the Scryfall API endpoint "/sets" using getJson.

  listSets: () => getJson("/sets"),