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"; server.tool( "token-clawback", "Claw back tokens issued by your account from a holder", { fromSeed: z .string() .optional() .describe( "Optional seed of the issuer wallet to use. If not provided, the connected wallet will be used." ), amount: z .object({ currency: z .string() .describe("Currency code of the token to claw back"), issuer: z .string() .describe( "Address of the holder (not the issuer) of the tokens" ), value: z.string().describe("Amount of tokens to claw back"), }) .describe("Token amount details"), fee: z.string().optional().describe("Transaction fee in XRP"), useTestnet: z .boolean() .optional() .describe( "Whether to use the testnet (true) or mainnet (false). If not provided, uses the network from the connected wallet." ), }, async ({ fromSeed, amount, fee, useTestnet }) => { let client: Client | null = null; try { // Determine which network to use const useTestnetNetwork = useTestnet !== undefined ? useTestnet : isConnectedToTestnet; client = await getXrplClient(useTestnetNetwork); // Use provided seed or connected wallet let wallet: Wallet; if (fromSeed) { wallet = Wallet.fromSeed(fromSeed); } else if (connectedWallet) { wallet = connectedWallet; } else { throw new Error( "No wallet connected. Please connect first using connect-to-xrpl tool or provide a fromSeed." ); } // Validate amount if (parseFloat(amount.value) <= 0) { throw new Error("Clawback amount must be greater than zero"); } // Validate holder address is not the same as issuer if (amount.issuer === wallet.address) { throw new Error( "Holder address (in amount.issuer) cannot be the same as the issuer account" ); } // Create Clawback transaction const clawbackTx: any = { TransactionType: "Clawback", Account: wallet.address, // The issuer Amount: { currency: amount.currency, issuer: amount.issuer, // The holder's address value: amount.value, }, }; // Add optional fee if provided if (fee) { clawbackTx.Fee = fee; } // Submit transaction const prepared = await client.autofill(clawbackTx); const signed = wallet.sign(prepared); const result = await client.submitAndWait(signed.tx_blob); let status = "unknown"; if (typeof result.result.meta !== "string" && result.result.meta) { status = result.result.meta.TransactionResult === "tesSUCCESS" ? "success" : "failed"; } return { content: [ { type: "text", text: JSON.stringify( { status, hash: result.result.hash, issuer: wallet.address, holder: amount.issuer, currency: amount.currency, amount: amount.value, network: useTestnetNetwork ? TESTNET_URL : MAINNET_URL, networkType: useTestnetNetwork ? "testnet" : "mainnet", result: result.result, }, null, 2 ), }, ], }; } catch (error) { return { content: [ { type: "text", text: `Error performing token clawback: ${ error instanceof Error ? error.message : String(error) }`, }, ], }; } finally { if (client) { await client.disconnect(); } } } );