diff --git a/README.md b/README.md
index 5a1451a..d9e64a8 100644
--- a/README.md
+++ b/README.md
@@ -52,3 +52,13 @@ public class Quickstart {
 ```bash
 mvn test
 ```
+
+## Enterprise Admin APIs
+
+Java SDK now includes service-account lifecycle helpers:
+
+- `createServiceAccount`
+- `listServiceAccounts`
+- `getServiceAccount`
+- `createServiceAccountKey`
+- `revokeServiceAccountKey`
diff --git a/src/main/java/dev/axme/sdk/AxmeClient.java b/src/main/java/dev/axme/sdk/AxmeClient.java
index 2840291..1d2a1df 100644
--- a/src/main/java/dev/axme/sdk/AxmeClient.java
+++ b/src/main/java/dev/axme/sdk/AxmeClient.java
@@ -58,6 +58,44 @@ public Map<String, Object> updateUserProfile(Map<String, Object> payload, Reques
     return requestJson("POST", "/v1/users/profile/update", Map.of(), payload, normalizeOptions(options));
   }
 
+  public Map<String, Object> createServiceAccount(Map<String, Object> payload, RequestOptions options)
+      throws IOException, InterruptedException {
+    return requestJson("POST", "/v1/service-accounts", Map.of(), payload, normalizeOptions(options));
+  }
+
+  public Map<String, Object> listServiceAccounts(String orgId, String workspaceId, RequestOptions options)
+      throws IOException, InterruptedException {
+    Map<String, String> query = new LinkedHashMap<>();
+    query.put("org_id", orgId);
+    query.put("workspace_id", workspaceId);
+    return requestJson("GET", "/v1/service-accounts", query, null, normalizeOptions(options));
+  }
+
+  public Map<String, Object> getServiceAccount(String serviceAccountId, RequestOptions options)
+      throws IOException, InterruptedException {
+    return requestJson("GET", "/v1/service-accounts/" + serviceAccountId, Map.of(), null, normalizeOptions(options));
+  }
+
+  public Map<String, Object> createServiceAccountKey(String serviceAccountId, Map<String, Object> payload, RequestOptions options)
+      throws IOException, InterruptedException {
+    return requestJson(
+        "POST",
+        "/v1/service-accounts/" + serviceAccountId + "/keys",
+        Map.of(),
+        payload,
+        normalizeOptions(options));
+  }
+
+  public Map<String, Object> revokeServiceAccountKey(String serviceAccountId, String keyId, RequestOptions options)
+      throws IOException, InterruptedException {
+    return requestJson(
+        "POST",
+        "/v1/service-accounts/" + serviceAccountId + "/keys/" + keyId + "/revoke",
+        Map.of(),
+        null,
+        normalizeOptions(options));
+  }
+
   private Map<String, Object> requestJson(
       String method,
       String path,
diff --git a/src/test/java/dev/axme/sdk/AxmeClientTest.java b/src/test/java/dev/axme/sdk/AxmeClientTest.java
index 62169d9..83dd824 100644
--- a/src/test/java/dev/axme/sdk/AxmeClientTest.java
+++ b/src/test/java/dev/axme/sdk/AxmeClientTest.java
@@ -110,4 +110,36 @@ void updateUserProfileSendsPayloadAndIdempotency() throws Exception {
     assertEquals("profile-1", request.getHeader("Idempotency-Key"));
     assertEquals("Partner User Updated", response.get("display_name"));
   }
+
+  @Test
+  void serviceAccountLifecycleEndpointsAreReachable() throws Exception {
+    server.enqueue(new MockResponse().setResponseCode(200).setBody("{\"ok\":true,\"service_account\":{\"service_account_id\":\"sa_123\"}}"));
+    server.enqueue(new MockResponse().setResponseCode(200).setBody("{\"ok\":true,\"service_accounts\":[{\"service_account_id\":\"sa_123\"}]}"));
+    server.enqueue(new MockResponse().setResponseCode(200).setBody("{\"ok\":true,\"service_account\":{\"service_account_id\":\"sa_123\"}}"));
+    server.enqueue(new MockResponse().setResponseCode(200).setBody("{\"ok\":true,\"key\":{\"key_id\":\"sak_123\",\"status\":\"active\"}}"));
+    server.enqueue(new MockResponse().setResponseCode(200).setBody("{\"ok\":true,\"key\":{\"key_id\":\"sak_123\",\"status\":\"revoked\"}}"));
+
+    client.createServiceAccount(
+        Map.of(
+            "org_id", "aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa",
+            "workspace_id", "bbbbbbbb-bbbb-4bbb-8bbb-bbbbbbbbbbbb",
+            "name", "sdk-runner",
+            "created_by_actor_id", "actor_java"),
+        new RequestOptions("sa-create-1", null));
+    client.listServiceAccounts(
+        "aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa",
+        "bbbbbbbb-bbbb-4bbb-8bbb-bbbbbbbbbbbb",
+        RequestOptions.none());
+    client.getServiceAccount("sa_123", RequestOptions.none());
+    client.createServiceAccountKey("sa_123", Map.of("created_by_actor_id", "actor_java"), RequestOptions.none());
+    client.revokeServiceAccountKey("sa_123", "sak_123", RequestOptions.none());
+
+    assertEquals("/v1/service-accounts", server.takeRequest().getPath());
+    assertEquals(
+        "/v1/service-accounts?org_id=aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa&workspace_id=bbbbbbbb-bbbb-4bbb-8bbb-bbbbbbbbbbbb",
+        server.takeRequest().getPath());
+    assertEquals("/v1/service-accounts/sa_123", server.takeRequest().getPath());
+    assertEquals("/v1/service-accounts/sa_123/keys", server.takeRequest().getPath());
+    assertEquals("/v1/service-accounts/sa_123/keys/sak_123/revoke", server.takeRequest().getPath());
+  }
 }