diff --git a/.changeset/solana-wallet-name.md b/.changeset/solana-wallet-name.md
new file mode 100644
index 0000000..a665909
--- /dev/null
+++ b/.changeset/solana-wallet-name.md
@@ -0,0 +1,6 @@
+---
+"@alien-id/sso-solana": minor
+"@alien-id/sso-solana-react": minor
+---
+
+Add optional `walletName` argument to `generateDeeplink`. When provided, it is sent as `wallet_name` in `POST /solana/link` and embedded in the signed deeplink so the Alien app can display the source wallet (e.g. phantom, solflare). Backward compatible — omitting it behaves as before.
diff --git a/packages/solanaCore/jest.config.ts b/packages/solanaCore/jest.config.ts
index fa68be1..669c177 100644
--- a/packages/solanaCore/jest.config.ts
+++ b/packages/solanaCore/jest.config.ts
@@ -9,6 +9,9 @@ const config: Config.InitialOptions = {
   globals: {
     'ts-jest': {
       useESM: true,
+      // ES2020 keeps native BigInt ** (ES2015 downlevels it to Math.pow,
+      // which breaks @noble/curves when transformed here).
+      tsconfig: { target: 'ES2020' },
     },
   },
   transform: {
diff --git a/packages/solanaCore/src/client.ts b/packages/solanaCore/src/client.ts
index 3f19557..9aa4259 100644
--- a/packages/solanaCore/src/client.ts
+++ b/packages/solanaCore/src/client.ts
@@ -119,9 +119,13 @@ export class AlienSolanaSsoClient {
     );
   }
 
-  async generateDeeplink(solanaAddress: string): Promise<SolanaLinkResponse> {
+  async generateDeeplink(
+    solanaAddress: string,
+    walletName?: string
+  ): Promise<SolanaLinkResponse> {
     const linkPayload: SolanaLinkRequest = {
       solana_address: solanaAddress,
+      ...(walletName ? { wallet_name: walletName } : {}),
     };
 
     SolanaLinkRequestSchema.parse(linkPayload);
diff --git a/packages/solanaCore/src/schema.ts b/packages/solanaCore/src/schema.ts
index 2f46423..3dcd603 100644
--- a/packages/solanaCore/src/schema.ts
+++ b/packages/solanaCore/src/schema.ts
@@ -5,6 +5,7 @@ import { z } from 'zod/v4-mini';
  */
 export const SolanaLinkRequestSchema = z.object({
   solana_address: z.string(),
+  wallet_name: z.optional(z.string()),
 });
 export type SolanaLinkRequest = z.infer<typeof SolanaLinkRequestSchema>;
 
diff --git a/packages/solanaCore/tests/generateDeeplink.test.ts b/packages/solanaCore/tests/generateDeeplink.test.ts
new file mode 100644
index 0000000..2ddece4
--- /dev/null
+++ b/packages/solanaCore/tests/generateDeeplink.test.ts
@@ -0,0 +1,47 @@
+import { AlienSolanaSsoClient } from '../src/client';
+
+describe('generateDeeplink — wallet_name', () => {
+  const config = {
+    ssoBaseUrl: 'https://sso.develop.alien-api.com',
+    providerAddress: '00000001040000000000000100000000',
+  };
+
+  const linkResponse = {
+    deep_link: 'https://s.alien-api.com/abc',
+    polling_code: 'poll-code',
+    expired_at: 1780000000,
+  };
+
+  let fetchMock: jest.Mock;
+
+  beforeEach(() => {
+    fetchMock = jest.fn().mockResolvedValue({
+      ok: true,
+      json: async () => linkResponse,
+    });
+    global.fetch = fetchMock as unknown as typeof fetch;
+  });
+
+  const getBody = () => JSON.parse(fetchMock.mock.calls[0][1].body);
+
+  it('includes wallet_name when provided', async () => {
+    const client = new AlienSolanaSsoClient(config);
+    await client.generateDeeplink('7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU', 'phantom');
+
+    expect(getBody()).toEqual({
+      solana_address: '7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU',
+      wallet_name: 'phantom',
+    });
+  });
+
+  it('omits wallet_name when not provided', async () => {
+    const client = new AlienSolanaSsoClient(config);
+    await client.generateDeeplink('7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU');
+
+    const body = getBody();
+    expect(body).toEqual({
+      solana_address: '7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU',
+    });
+    expect(body).not.toHaveProperty('wallet_name');
+  });
+});
diff --git a/packages/solanaReact/lib/providers/AlienSolanaSsoProvider.tsx b/packages/solanaReact/lib/providers/AlienSolanaSsoProvider.tsx
index e380515..de44986 100644
--- a/packages/solanaReact/lib/providers/AlienSolanaSsoProvider.tsx
+++ b/packages/solanaReact/lib/providers/AlienSolanaSsoProvider.tsx
@@ -65,7 +65,8 @@ type SolanaSsoContextValue = {
   connectionAdapter: SolanaConnectionAdapter;
   queryClient: QueryClient;
   generateDeeplink: (
-    solanaAddress: string
+    solanaAddress: string,
+    walletName?: string
   ) => Promise<import("@alien-id/sso-solana").SolanaLinkResponse>;
   pollAuth: (pollingCode: string) => Promise<import("@alien-id/sso-solana").SolanaPollResponse>;
   verifyAttestation: (solanaAddress: string) => Promise<string | null>;
@@ -114,8 +115,8 @@ export function AlienSolanaSsoProvider({
   });
 
   const generateDeeplink = useCallback(
-    async (solanaAddress: string) => {
-      return await client.generateDeeplink(solanaAddress);
+    async (solanaAddress: string, walletName?: string) => {
+      return await client.generateDeeplink(solanaAddress, walletName);
     },
     [client]
   );