MCP Bitpanda Server

import { z } from 'zod'; import axios from 'axios'; import { BITPANDA_API_V3_BASE_URL } from '../config.js'; // Use .js extension for local import import { findAssetBySymbol } from './utils/assetUtils.js'; // Import the shared utility // Define the input schema shape for the get_ohlc tool const ohlcInputSchemaShape = { symbol: z.string().describe('The trading symbol of the asset (e.g., BTC, XAU)'), fiatCurrency: z.string().describe('The fiat currency (e.g., USD, EUR)'), timeframe: z.enum(['day', 'week']).describe('The timeframe for the OHLC data (day or week)'), }; type RawSchemaShape = typeof ohlcInputSchemaShape; type Input = z.infer<z.ZodObject<RawSchemaShape>>; // Define the expected output structure based on the provided Zod schema type Output = z.infer<typeof ohlcOutputSchema>; // Use z.infer for the output schema const ohlcOutputSchema = z.object({ data: z.array( z.object({ type: z.string(), attributes: z.object({ open: z.string(), high: z.string(), low: z.string(), close: z.string(), time: z.object({ date_iso8601: z.string(), unix: z.string() }), }), }) ), }); // Define the handler function for the get_ohlc tool const ohlcHandler = async (input: Input): Promise<Output> => { try { // First, get the asset ID using the shared utility function const foundAsset = await findAssetBySymbol(input.symbol); const assetPid = foundAsset.attributes.pid; // Then, fetch the OHLC data using the asset PID const ohlcResponse = await axios.get( `${BITPANDA_API_V3_BASE_URL}/ohlc/${assetPid}/${input.fiatCurrency}/${input.timeframe}` ); const ohlcData = ohlcResponse.data; // Validate the response against the output schema const validatedData = ohlcOutputSchema.parse(ohlcData); return validatedData; } catch (error: unknown) { console.error('Error fetching OHLC data:', error); const message = error instanceof Error ? error.message : 'An unknown error occurred while fetching OHLC data.'; // Re-throwing the error to be handled by the MCP server framework throw new Error(`Failed to fetch OHLC data: ${message}`); } }; // Define the tool definition object structure type BitpandaToolDefinition = { name: string; description: string; inputSchemaShape: RawSchemaShape; handler: (input: Input) => Promise<Output>; }; // Export the tool definition for get_ohlc export const ohlcTool: BitpandaToolDefinition = { name: 'get_ohlc', description: 'Retrieves OHLC data for a specific asset, fiat currency, and timeframe.', inputSchemaShape: ohlcInputSchemaShape, handler: ohlcHandler, };