feat(swap-controller): Add monero-seed RPC command (#511)

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - GUI: Add white background to QR code modal to make it better scannable
 - GUI + CLI + ASB: Add `/dns4/rendezvous.observer/tcp/8888/p2p/12D3KooWMjceGXrYuGuDMGrfmJxALnSDbK4km6s1i1sJEgDTgGQa` to the default list of rendezvous points
 - GUI + CLI + ASB: Monero RPC pool now prioritizes nodes with pre-established TCP connections
+- ASB + CONTROLLER: Add a `monero_seed` command to the controller shell. You can use it to export the seed and restore height of the internal Monero wallet. You can use those to import the wallet into a wallet software of your own choosing.
 
 ## [3.0.0-beta.6] - 2025-08-07
 

swap-controller-api/src/lib.rs

@@ -34,6 +34,12 @@ pub struct Swap {
     pub state: String,
 }
 
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub struct MoneroSeedResponse {
+    pub seed: String,
+    pub restore_height: u64,
+}
+
 #[rpc(client, server)]
 pub trait AsbApi {
     #[method(name = "check_connection")]
@@ -44,6 +50,8 @@ pub trait AsbApi {
     async fn monero_balance(&self) -> Result<MoneroBalanceResponse, ErrorObjectOwned>;
     #[method(name = "monero_address")]
     async fn monero_address(&self) -> Result<MoneroAddressResponse, ErrorObjectOwned>;
+    #[method(name = "monero_seed")]
+    async fn monero_seed(&self) -> Result<MoneroSeedResponse, ErrorObjectOwned>;
     #[method(name = "multiaddresses")]
     async fn multiaddresses(&self) -> Result<MultiaddressesResponse, ErrorObjectOwned>;
     #[method(name = "active_connections")]

swap-controller/src/cli.rs

@@ -23,6 +23,8 @@ pub enum Cmd {
     MoneroBalance,
     /// Get Monero wallet address
     MoneroAddress,
+    /// Get Monero seed and restore height
+    MoneroSeed,
     /// Get external multiaddresses
     Multiaddresses,
     /// Get active connection count

swap-controller/src/main.rs

@@ -3,7 +3,7 @@ mod repl;
 
 use clap::Parser;
 use cli::{Cli, Cmd};
-use swap_controller_api::AsbApiClient;
+use swap_controller_api::{AsbApiClient, MoneroSeedResponse};
 
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
@@ -43,6 +43,19 @@ async fn dispatch(cmd: Cmd, client: impl AsbApiClient) -> anyhow::Result<()> {
             let response = client.monero_address().await?;
             println!("The primary Monero address is {}", response.address);
         }
+        Cmd::MoneroSeed => {
+            let MoneroSeedResponse {
+                seed,
+                restore_height,
+            } = client.monero_seed().await?;
+
+            println!("The seed of the internal Monero wallet is: \n{}", seed);
+            println!();
+            println!(
+                "The restore height of the internal Monero wallet is {}",
+                restore_height
+            );
+        }
         Cmd::Multiaddresses => {
             let response = client.multiaddresses().await?;
             if response.multiaddresses.is_empty() {

swap/src/asb/rpc/server.rs

@@ -8,7 +8,7 @@ use jsonrpsee::types::ErrorObjectOwned;
 use std::sync::Arc;
 use swap_controller_api::{
     ActiveConnectionsResponse, AsbApiServer, BitcoinBalanceResponse, MoneroAddressResponse,
-    MoneroBalanceResponse, MultiaddressesResponse, Swap,
+    MoneroBalanceResponse, MoneroSeedResponse, MultiaddressesResponse, Swap,
 };
 use tokio_util::task::AbortOnDropHandle;
 
@@ -90,6 +90,17 @@ impl AsbApiServer for RpcImpl {
         })
     }
 
+    async fn monero_seed(&self) -> Result<MoneroSeedResponse, ErrorObjectOwned> {
+        let wallet = self.monero_wallet.main_wallet().await;
+        let seed = wallet.seed().await.into_json_rpc_result()?;
+        let restore_height = wallet.get_restore_height().await.into_json_rpc_result()?;
+
+        Ok(MoneroSeedResponse {
+            seed,
+            restore_height,
+        })
+    }
+
     async fn multiaddresses(&self) -> Result<MultiaddressesResponse, ErrorObjectOwned> {
         let (_, addresses) = self
             .event_loop_service