diff --git a/tests/unit/test_http/test_api/test_blueprints/__init__.py b/tests/unit/test_http/test_api/test_blueprints/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/unit/test_http/test_api/test_blueprints/test_blueprint.py b/tests/unit/test_http/test_api/test_blueprints/test_blueprint.py
new file mode 100644
index 0000000..46196c2
--- /dev/null
+++ b/tests/unit/test_http/test_api/test_blueprints/test_blueprint.py
@@ -0,0 +1,34 @@
+import datetime
+
+from enapter.http.api.blueprints.blueprint import Blueprint
+
+
+def test_blueprint_from_dto():
+    dto = {
+        "id": "bp_123",
+        "created_at": "2023-01-01T12:00:00+00:00",
+    }
+    blueprint = Blueprint.from_dto(dto)
+    assert blueprint.id == "bp_123"
+    assert blueprint.created_at == datetime.datetime(
+        2023, 1, 1, 12, 0, 0, tzinfo=datetime.timezone.utc
+    )
+
+
+def test_blueprint_to_dto():
+    created_at = datetime.datetime(2023, 1, 1, 12, 0, 0, tzinfo=datetime.timezone.utc)
+    blueprint = Blueprint(id="bp_123", created_at=created_at)
+    dto = blueprint.to_dto()
+    assert dto == {
+        "id": "bp_123",
+        "created_at": "2023-01-01T12:00:00+00:00",
+    }
+
+
+def test_blueprint_roundtrip():
+    dto = {
+        "id": "bp_123",
+        "created_at": "2023-01-01T12:00:00+00:00",
+    }
+    blueprint = Blueprint.from_dto(dto)
+    assert blueprint.to_dto() == dto
diff --git a/tests/unit/test_http/test_api/test_blueprints/test_client.py b/tests/unit/test_http/test_api/test_blueprints/test_client.py
new file mode 100644
index 0000000..2fe7968
--- /dev/null
+++ b/tests/unit/test_http/test_api/test_blueprints/test_client.py
@@ -0,0 +1,221 @@
+"""Unit tests for the Blueprints HTTP API client."""
+
+import io
+import zipfile
+from unittest.mock import AsyncMock, MagicMock
+
+import httpx
+import pytest
+
+import enapter
+from enapter.http.api.blueprints.blueprint import BlueprintView
+
+
+@pytest.fixture
+def mock_client():
+    """Fixture to provide a mocked httpx.AsyncClient."""
+    return MagicMock(spec=httpx.AsyncClient)
+
+
+@pytest.fixture
+def blueprints_client(mock_client):
+    """Fixture to provide a Blueprints API client with a mocked internal client."""
+    return enapter.http.api.blueprints.Client(client=mock_client)
+
+
+@pytest.mark.asyncio
+async def test_get_blueprint(blueprints_client, mock_client):
+    """Test getting a specific blueprint by ID."""
+    mock_response = MagicMock(spec=httpx.Response)
+    mock_response.status_code = 200
+    mock_response.json.return_value = {
+        "blueprint": {
+            "id": "bp_123",
+            "created_at": "2023-01-01T12:00:00+00:00",
+        }
+    }
+    mock_client.get = AsyncMock(return_value=mock_response)
+
+    blueprint = await blueprints_client.get(blueprint_id="bp_123")
+
+    assert blueprint.id == "bp_123"
+    mock_client.get.assert_called_once_with("v3/blueprints/bp_123")
+
+
+@pytest.mark.asyncio
+async def test_upload_blueprint(blueprints_client, mock_client):
+    """Test uploading a blueprint from bytes."""
+    mock_response = MagicMock(spec=httpx.Response)
+    mock_response.status_code = 200
+    mock_response.json.return_value = {
+        "blueprint": {
+            "id": "bp_123",
+            "created_at": "2023-01-01T12:00:00+00:00",
+        }
+    }
+    mock_client.post = AsyncMock(return_value=mock_response)
+
+    data = b"test blueprint data"
+    blueprint = await blueprints_client.upload(data=data)
+
+    assert blueprint.id == "bp_123"
+    mock_client.post.assert_called_once_with("v3/blueprints/upload", content=data)
+
+
+@pytest.mark.asyncio
+async def test_upload_file(blueprints_client, mock_client, tmp_path):
+    """Test uploading a blueprint from a file."""
+    mock_response = MagicMock(spec=httpx.Response)
+    mock_response.status_code = 200
+    mock_response.json.return_value = {
+        "blueprint": {
+            "id": "bp_123",
+            "created_at": "2023-01-01T12:00:00+00:00",
+        }
+    }
+    mock_client.post = AsyncMock(return_value=mock_response)
+
+    bp_file = tmp_path / "blueprint.zip"
+    data = b"test blueprint file data"
+    bp_file.write_bytes(data)
+
+    blueprint = await blueprints_client.upload_file(path=bp_file)
+
+    assert blueprint.id == "bp_123"
+    mock_client.post.assert_called_once_with("v3/blueprints/upload", content=data)
+
+
+@pytest.mark.asyncio
+async def test_upload_directory(blueprints_client, mock_client, tmp_path):
+    """Test uploading a blueprint from a directory."""
+    mock_response = MagicMock(spec=httpx.Response)
+    mock_response.status_code = 200
+    mock_response.json.return_value = {
+        "blueprint": {
+            "id": "bp_123",
+            "created_at": "2023-01-01T12:00:00+00:00",
+        }
+    }
+    mock_client.post = AsyncMock(return_value=mock_response)
+
+    bp_dir = tmp_path / "blueprint_dir"
+    bp_dir.mkdir()
+    (bp_dir / "main.lua").write_text("print('hello')")
+
+    blueprint = await blueprints_client.upload_directory(path=bp_dir)
+
+    assert blueprint.id == "bp_123"
+    mock_client.post.assert_called_once()
+    args, kwargs = mock_client.post.call_args
+    assert args[0] == "v3/blueprints/upload"
+
+    zipped_content = kwargs["content"]
+    with zipfile.ZipFile(io.BytesIO(zipped_content)) as zf:
+        assert "main.lua" in zf.namelist()
+        assert zf.read("main.lua") == b"print('hello')"
+
+
+@pytest.mark.asyncio
+async def test_download_blueprint(blueprints_client, mock_client):
+    """Test downloading a blueprint."""
+    mock_response = MagicMock(spec=httpx.Response)
+    mock_response.status_code = 200
+    mock_response.content = b"blueprint zip content"
+    mock_client.get = AsyncMock(return_value=mock_response)
+
+    content = await blueprints_client.download(blueprint_id="bp_123")
+
+    assert content == b"blueprint zip content"
+    mock_client.get.assert_called_once_with(
+        "v3/blueprints/bp_123/zip", params={"view": "ORIGINAL"}
+    )
+
+
+@pytest.mark.asyncio
+async def test_download_blueprint_compiled(blueprints_client, mock_client):
+    """Test downloading a compiled blueprint."""
+    mock_response = MagicMock(spec=httpx.Response)
+    mock_response.status_code = 200
+    mock_response.content = b"compiled blueprint zip content"
+    mock_client.get = AsyncMock(return_value=mock_response)
+
+    content = await blueprints_client.download(
+        blueprint_id="bp_123", view=BlueprintView.COMPILED
+    )
+
+    assert content == b"compiled blueprint zip content"
+    mock_client.get.assert_called_once_with(
+        "v3/blueprints/bp_123/zip", params={"view": "COMPILED"}
+    )
+
+
+@pytest.mark.asyncio
+async def test_validate_blueprint(blueprints_client, mock_client):
+    """Test validating a blueprint from bytes."""
+    mock_response = MagicMock(spec=httpx.Response)
+    mock_response.status_code = 200
+    mock_response.json.return_value = {}
+    mock_client.post = AsyncMock(return_value=mock_response)
+
+    data = b"test blueprint data"
+    await blueprints_client.validate(data=data)
+
+    mock_client.post.assert_called_once_with("v3/blueprints/validate", content=data)
+
+
+@pytest.mark.asyncio
+async def test_validate_blueprint_with_errors(blueprints_client, mock_client):
+    """Test validating a blueprint with errors."""
+    mock_response = MagicMock(spec=httpx.Response)
+    mock_response.status_code = 200
+    mock_response.json.return_value = {"validation_errors": ["Error 1", "Error 2"]}
+    mock_client.post = AsyncMock(return_value=mock_response)
+
+    data = b"invalid blueprint data"
+    with pytest.raises(enapter.http.api.MultiError) as excinfo:
+        await blueprints_client.validate(data=data)
+
+    assert len(excinfo.value.errors) == 2
+    assert excinfo.value.errors[0].message == "Error 1"
+    assert excinfo.value.errors[1].message == "Error 2"
+
+
+@pytest.mark.asyncio
+async def test_validate_file(blueprints_client, mock_client, tmp_path):
+    """Test validating a blueprint from a file."""
+    mock_response = MagicMock(spec=httpx.Response)
+    mock_response.status_code = 200
+    mock_response.json.return_value = {}
+    mock_client.post = AsyncMock(return_value=mock_response)
+
+    bp_file = tmp_path / "blueprint.zip"
+    data = b"test blueprint file data"
+    bp_file.write_bytes(data)
+
+    await blueprints_client.validate_file(path=bp_file)
+
+    mock_client.post.assert_called_once_with("v3/blueprints/validate", content=data)
+
+
+@pytest.mark.asyncio
+async def test_validate_directory(blueprints_client, mock_client, tmp_path):
+    """Test validating a blueprint from a directory."""
+    mock_response = MagicMock(spec=httpx.Response)
+    mock_response.status_code = 200
+    mock_response.json.return_value = {}
+    mock_client.post = AsyncMock(return_value=mock_response)
+
+    bp_dir = tmp_path / "blueprint_dir"
+    bp_dir.mkdir()
+    (bp_dir / "main.lua").write_text("print('hello')")
+
+    await blueprints_client.validate_directory(path=bp_dir)
+
+    mock_client.post.assert_called_once()
+    args, kwargs = mock_client.post.call_args
+    assert args[0] == "v3/blueprints/validate"
+
+    zipped_content = kwargs["content"]
+    with zipfile.ZipFile(io.BytesIO(zipped_content)) as zf:
+        assert "main.lua" in zf.namelist()
+        assert zf.read("main.lua") == b"print('hello')"