xrpl mcp

import { Client, Wallet } from "xrpl"; import { z } from "zod"; import { server } from "../../server/server.js"; import { getXrplClient } from "../../core/services/clients.js"; import { MAINNET_URL, TESTNET_URL } from "../../core/constants.js"; import { connectedWallet, isConnectedToTestnet } from "../../core/state.js"; // Register check-token-balance tool server.tool( "check-token-balance", "Check token balance for an address", { address: z .string() .optional() .describe("Account address to check balance for"), currency: z.string().describe("Currency code"), issuer: z.string().describe("Issuer address for the token"), useTestnet: z .boolean() .optional() .describe("Whether to use testnet or mainnet"), }, async ({ address, currency, issuer, useTestnet }) => { let client: Client | null = null; try { const useTestnetNetwork = useTestnet !== undefined ? useTestnet : isConnectedToTestnet; client = await getXrplClient(useTestnetNetwork); // Use provided address or connected wallet's address const accountAddress = address || (connectedWallet ? connectedWallet.address : undefined); if (!accountAddress) { throw new Error("No address provided and no wallet connected."); } const response = await client.request({ command: "account_lines", account: accountAddress, ledger_index: "validated", }); // Find the specific token in the trust lines const lines = response.result.lines || []; const tokenLine = lines.find( (line) => line.currency === currency && line.account === issuer ); const balance = tokenLine ? tokenLine.balance : "0"; return { content: [ { type: "text", text: JSON.stringify( { address: accountAddress, currency, issuer, balance, _meta: { network: useTestnetNetwork ? TESTNET_URL : MAINNET_URL, networkType: useTestnetNetwork ? "testnet" : "mainnet", }, }, null, 2 ), }, ], }; } catch (error) { return { content: [ { type: "text", text: `Error checking token balance: ${ error instanceof Error ? error.message : String(error) }`, }, ], }; } finally { if (client) { await client.disconnect(); } } } );