CryptoDataAPI MCP Server

Instructions

Implementation Reference

• src/tools/open-interest.ts:27-33 (handler)

  The handler function for 'get_open_interest' tool which calls the API.

  export async function handler(args: z.infer<typeof schema>) {
    return apiGet("/api/v1/market-intelligence/open-interest", {
      exchange: args.exchange,
      type: args.type,
      limit: args.limit,
    });
  }

• src/tools/open-interest.ts:12-25 (schema)

  Input schema definition for the 'get_open_interest' tool.

  export const schema = z.object({
    exchange: z
      .string()
      .optional()
      .describe("Filter by exchange name (e.g., 'binance', 'hyperliquid'). Omit for all exchanges."),
    type: z
      .string()
      .optional()
      .describe("Market type filter (e.g., 'perps'). Omit for default."),
    limit: z
      .number()
      .optional()
      .describe("Number of results to return. Default 250."),
  });

• src/index.ts:55-79 (registration)

  Registration loop that registers all imported tools, including 'get_open_interest', to the McpServer instance.

  for (const tool of tools) {
    server.tool(tool.name, tool.description, tool.schema.shape, async (args: Record<string, unknown>) => {
      const result = await tool.handler(args as any);
      if (result.ok) {
        return {
          content: [
            {
              type: "text" as const,
              text: JSON.stringify(result.data, null, 2),
            },
          ],
        };
      } else {
        return {
          content: [
            {
              type: "text" as const,
              text: `API Error (${result.status}): ${result.error}`,
            },
          ],
          isError: true,
        };
      }
    });
  }