diff --git a/pyproject.toml b/pyproject.toml
index 4de8b09..2de6a48 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -51,7 +51,7 @@ agent = ["mcp-toolsets-runtime[state]"]
 # which the base install already has for mcp_runtime's servers.
 api = [
     "mcp-toolsets-runtime[agent]",
-    "ag-ui-protocol<0.2.0,>=0.1.19",
+    "ag-ui-protocol>=0.1.19,<1.1.0",
 ]
 
 # mcp_runtime.discovery's ECS backend, and nothing else in the package imports
diff --git a/uv.lock b/uv.lock
index 0b4ccbb..1cbbd42 100644
--- a/uv.lock
+++ b/uv.lock
@@ -8,14 +8,14 @@ resolution-markers = [
 
 [[package]]
 name = "ag-ui-protocol"
-version = "0.1.22"
+version = "1.0.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "pydantic" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/e8/f7/9bf788e7d3608725d022a248a58427040f4f930ab87ddb54bd29ee4d9a51/ag_ui_protocol-0.1.22.tar.gz", hash = "sha256:d21f265284a50d9fc87ad7bcbd58f737b4b16eef7b5375f13a6e925117b52046", size = 18110, upload-time = "2026-08-31T18:20:04.334Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/57/92/d88fdc7f4648dc38d3d54c595066bb3e63a4c091884ffb2f98272c33eef8/ag_ui_protocol-1.0.0.tar.gz", hash = "sha256:cfebecef2e7bc942cc8a52d908a4ea86a98f631d2ffdc6ec5812bb843eac74fb", size = 30759, upload-time = "2026-09-17T18:31:19.448Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/be/6c/af3d577e68c9474c99600e65b2c6283772aae187edca6f0f2f5cbd9f565a/ag_ui_protocol-0.1.22-py3-none-any.whl", hash = "sha256:fca13ee7820f8f53e869c19e09ddd75826c1799b27c2adb6f2e567295433c704", size = 22068, upload-time = "2026-08-31T18:20:03.43Z" },
+    { url = "https://files.pythonhosted.org/packages/82/b0/850be4576e6443dc575daa54188d8136ae2b2eca3f19e098e7a088fc9ebc/ag_ui_protocol-1.0.0-py3-none-any.whl", hash = "sha256:0058eaf0522201089d444e430fc35180bc8ad0222cae39e8568b313e8105d9e6", size = 36842, upload-time = "2026-09-17T18:31:18.471Z" },
 ]
 
 [[package]]
@@ -716,7 +716,7 @@ dev = [
 
 [package.metadata]
 requires-dist = [
-    { name = "ag-ui-protocol", marker = "extra == 'api'", specifier = ">=0.1.19,<0.2.0" },
+    { name = "ag-ui-protocol", marker = "extra == 'api'", specifier = ">=0.1.19,<1.1.0" },
     { name = "boto3", marker = "extra == 'aws'", specifier = ">=1.43.87,<2.0.0" },
     { name = "fastapi", specifier = ">=0.140.11,<1.0.0" },
     { name = "httpx", specifier = ">=0.28.1,<1.0.0" },