diff --git a/README.md b/README.md
index 6872587..43e88b6 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ Built on [Ogmios](https://ogmios.dev/) + [Koios](https://www.koios.rest/) — no
 | `vector_get_balance` | Get ADA and token balances for any Vector address |
 | `vector_get_address` | Get the agent's wallet address and balance |
 | `vector_get_utxos` | List UTxOs for an address or the agent's wallet |
-| `vector_send_ada` | Send ADA (respects spend limits) |
+| `vector_send_apex` | Send APEX (respects spend limits) |
 | `vector_send_tokens` | Send native tokens |
 | `vector_get_spend_limits` | Check spend limits and remaining budget |
 
diff --git a/docs/VECTOR.md b/docs/VECTOR.md
index be80031..a68539d 100644
--- a/docs/VECTOR.md
+++ b/docs/VECTOR.md
@@ -38,7 +38,7 @@ List unspent transaction outputs for an address or the agent's wallet.
 
 **Example prompt:** "Show me the UTxOs in my wallet"
 
-### vector_send_ada
+### vector_send_apex
 
 Send ADA from the agent's wallet to a recipient. Enforces spend limits.
 
diff --git a/shell.nix b/shell.nix
index 9dce029..c178dfd 100644
--- a/shell.nix
+++ b/shell.nix
@@ -2,7 +2,7 @@
 
 pkgs.mkShell {
   buildInputs = with pkgs; [
-    nodejs_20
+    nodejs_22
     nodePackages.npm
   ];
 }
diff --git a/src/vector/vector.ts b/src/vector/vector.ts
index 11b7f37..90b0880 100644
--- a/src/vector/vector.ts
+++ b/src/vector/vector.ts
@@ -696,10 +696,10 @@ ${utxoList}`,
     }
   );
 
-  // vector_send_ada — Send ADA with safety limits
+  // vector_send_apex — Send APEX with safety limits
   // @ts-ignore: MCP SDK deep type instantiation
   server.tool(
-    "vector_send_ada",
+    "vector_send_apex",
     "Send ADA from the agent's wallet to a recipient address (respects spend limits)",
     {
       recipientAddress: z.string().describe("Recipient Vector address (addr1...)"),