diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index acc7db31..22d11cda 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -12,8 +12,9 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  test:
-    name: "Python ${{ matrix.python-version }} on ${{ matrix.os }}"
+
+  test-full:
+    name: "Full: Python ${{ matrix.python-version }} on ${{ matrix.os }}"
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
@@ -65,11 +66,33 @@ jobs:
     - name: Install package and run software tests (Python 3.6)
       if: matrix.python-version == '3.6'
       run: |
-        pip install '.[graphql,develop,test]'
+        pip install '.[full,develop,test]'
         poe test
 
     - name: Install and completely validate package (Python >=3.6)
       if: matrix.python-version != '3.6'
       run: |
-        uv pip install '.[graphql,develop,test]' --system
+        uv pip install '.[full,develop,test]' --system
+        poe check
+
+
+  test-minimal:
+    name: "Minimal: Python ${{ matrix.python-version }} on ${{ matrix.os }}"
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: ["ubuntu-latest"]
+        python-version: ["3.13"]
+
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+    - uses: yezz123/setup-uv@v4
+
+    - name: Install and completely validate package
+      run: |
+        uv pip install '.[develop,test]' --system
         poe check
diff --git a/README.md b/README.md
index 4851e981..d7565e32 100644
--- a/README.md
+++ b/README.md
@@ -42,11 +42,20 @@ for more details on features available in Responder.
 
 Install the most recent stable release:
 
-    uv pip install --upgrade 'responder'
+    pip install --upgrade 'responder'
+
+Include support for all extensions and interfaces:
+
+    pip install --upgrade 'responder[full]'
+
+Individual optional installation extras are:
+
+- graphql: Adds GraphQL support via Graphene
+- openapi: Adds OpenAPI/Swagger interface support
 
 Or, install directly from the repository:
 
-    uv pip install --upgrade 'responder @ git+https://github.com/kennethreitz/responder.git'
+    pip install 'responder[full] @ git+https://github.com/kennethreitz/responder.git'
 
 Responder supports **Python 3.6+**.
 
diff --git a/docs/source/tour.rst b/docs/source/tour.rst
index 256e7bf8..2548ff66 100644
--- a/docs/source/tour.rst
+++ b/docs/source/tour.rst
@@ -34,6 +34,10 @@ Here, you can spawn off a background thread to run any function, out-of-request:
 
 GraphQL
 -------
+responder supports GraphQL::
+
+    pip install 'responder[graphql]'
+
 
 Serve a GraphQL API::
 
@@ -58,12 +62,20 @@ You can make use of Responder's Request and Response objects in your GraphQL res
 OpenAPI Schema Support
 ----------------------
 
-Responder comes with built-in support for OpenAPI / marshmallow
+Responder comes with built-in support for OpenAPI / marshmallow::
+
+    pip install 'responder[openapi]'
+
+.. note::
 
-New in Responder `1.4.0`::
+    If you're upgrading from a previous version, note that the OpenAPI module
+    has been renamed from ``responder.ext.schema`` to ``responder.ext.openapi``.
+    Update your imports accordingly.
+
+New in Responder 1.4.0::
 
     import responder
-    from responder.ext.schema import Schema as OpenAPISchema
+    from responder.ext.openapi import OpenAPISchema
     from marshmallow import Schema, fields
 
     contact = {
@@ -194,12 +206,11 @@ Responder can automatically supply API Documentation for you. Using the example
 
 The new and recommended way::
 
-    ...
-    from responder.ext.schema import Schema
-    ...
+    from responder.ext.openapi import OpenAPISchema
+
     api = responder.API()
 
-    schema = Schema(
+    schema = OpenAPISchema(
         app=api,
         title="Web Service",
         version="1.0",
@@ -214,7 +225,7 @@ The new and recommended way::
     )
     
 
-The old way ::
+The old way::
 
     api = responder.API(
         title="Web Service",
diff --git a/responder/api.py b/responder/api.py
index 4311c8f9..81bb831b 100644
--- a/responder/api.py
+++ b/responder/api.py
@@ -13,7 +13,6 @@
 
 from . import status_codes
 from .background import BackgroundQueue
-from .ext.schema import OpenAPISchema as OpenAPISchema
 from .formats import get_formats
 from .routes import Router
 from .staticfiles import StaticFiles
@@ -110,6 +109,14 @@ def __init__(
         self.add_middleware(SessionMiddleware, secret_key=self.secret_key)
 
         if openapi or docs_route:
+            try:
+                from .ext.openapi import OpenAPISchema
+            except ImportError as ex:
+                raise ImportError(
+                    "The dependencies for the OpenAPI extension are not installed. "
+                    "Install them using: pip install 'responder[openapi]'"
+                ) from ex
+
             self.openapi = OpenAPISchema(
                 app=self,
                 title=title,
diff --git a/responder/ext/schema/__init__.py b/responder/ext/openapi/__init__.py
similarity index 100%
rename from responder/ext/schema/__init__.py
rename to responder/ext/openapi/__init__.py
diff --git a/responder/ext/schema/docs/elements.html b/responder/ext/openapi/docs/elements.html
similarity index 100%
rename from responder/ext/schema/docs/elements.html
rename to responder/ext/openapi/docs/elements.html
diff --git a/responder/ext/schema/docs/rapidoc.html b/responder/ext/openapi/docs/rapidoc.html
similarity index 100%
rename from responder/ext/schema/docs/rapidoc.html
rename to responder/ext/openapi/docs/rapidoc.html
diff --git a/responder/ext/schema/docs/redoc.html b/responder/ext/openapi/docs/redoc.html
similarity index 100%
rename from responder/ext/schema/docs/redoc.html
rename to responder/ext/openapi/docs/redoc.html
diff --git a/responder/ext/schema/docs/swagger_ui.html b/responder/ext/openapi/docs/swagger_ui.html
similarity index 100%
rename from responder/ext/schema/docs/swagger_ui.html
rename to responder/ext/openapi/docs/swagger_ui.html
diff --git a/setup.py b/setup.py
index 10755132..c9add646 100644
--- a/setup.py
+++ b/setup.py
@@ -132,7 +132,9 @@ def run(self):
             "sphinx-design-elements",
             "sphinxext.opengraph",
         ],
+        "full": ["responder[graphql,openapi]"],
         "graphql": ["graphene"],
+        "openapi": ["apispec>=1.0.0"],
         "release": ["build", "twine"],
         "test": ["flask", "mypy", "pytest", "pytest-cov", "pytest-mock"],
     },
diff --git a/tests/conftest.py b/tests/conftest.py
index 74addee8..953a352b 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -53,3 +53,13 @@ def template_path(tmpdir):
     template_file = tmpdir.mkdir("static").join(template_name)
     template_file.write("{{ var }}")
     return template_file
+
+
+@pytest.fixture
+def needs_openapi() -> None:
+    try:
+        import apispec
+
+        _ = apispec.APISpec
+    except ImportError as ex:
+        raise pytest.skip("apispec package not installed") from ex
diff --git a/tests/test_responder.py b/tests/test_responder.py
index c125da2b..0ce99319 100644
--- a/tests/test_responder.py
+++ b/tests/test_responder.py
@@ -322,11 +322,11 @@ def route(req, resp):
     assert yaml.safe_load(r.content) == dump
 
 
-def test_schema_generation_explicit():
+def test_schema_generation_explicit(needs_openapi):
     import marshmallow
 
     import responder
-    from responder.ext.schema import OpenAPISchema as OpenAPISchema
+    from responder.ext.openapi import OpenAPISchema
 
     api = responder.API()
 
@@ -357,7 +357,7 @@ def route(req, resp):
     assert dump["openapi"] == "3.0.2"
 
 
-def test_schema_generation():
+def test_schema_generation(needs_openapi):
     from marshmallow import Schema, fields
 
     import responder
@@ -389,11 +389,11 @@ def route(req, resp):
     assert dump["openapi"] == "3.0.2"
 
 
-def test_documentation_explicit():
+def test_documentation_explicit(needs_openapi):
     import marshmallow
 
     import responder
-    from responder.ext.schema import OpenAPISchema as OpenAPISchema
+    from responder.ext.openapi import OpenAPISchema
 
     description = "This is a sample server for a pet store."
     terms_of_service = "http://example.com/terms/"
@@ -443,7 +443,7 @@ def route(req, resp):
     assert "html" in r.text
 
 
-def test_documentation():
+def test_documentation(needs_openapi):
     from marshmallow import Schema, fields
 
     import responder