diff --git a/README.md b/README.md
index f1d2911..01c0f60 100644
--- a/README.md
+++ b/README.md
@@ -19,8 +19,8 @@ import os
 from aleph_alpha_client import Client, CompletionRequest, Prompt
 
 client = Client(
-    token=os.getenv("AA_TOKEN"),
-    host="https://inference-api.your-domain.com",
+    token=os.environ["TEST_TOKEN"],
+    host=os.environ["TEST_API_URL"],
 )
 request = CompletionRequest(
     prompt=Prompt.from_text("Provide a short description of AI:"),
@@ -39,8 +39,8 @@ from aleph_alpha_client import AsyncClient, CompletionRequest, Prompt
 
 # Can enter context manager within an async function
 async with AsyncClient(
-    token=os.environ["AA_TOKEN"]
-    host="https://inference-api.your-domain.com",
+    token=os.environ["TEST_TOKEN"],
+    host=os.environ["TEST_API_URL"],
 ) as client:
     request = CompletionRequest(
         prompt=Prompt.from_text("Provide a short description of AI:"),
diff --git a/aleph_alpha_client/aleph_alpha_client.py b/aleph_alpha_client/aleph_alpha_client.py
index 20b0d78..b375d05 100644
--- a/aleph_alpha_client/aleph_alpha_client.py
+++ b/aleph_alpha_client/aleph_alpha_client.py
@@ -165,8 +165,8 @@ class Client:
     Example usage:
         >>> request = CompletionRequest(prompt=Prompt.from_text(f"Request"), maximum_tokens=64)
         >>> client = Client(
-                token=os.environ["AA_TOKEN"],
-                host="https://inference-api.your-domain.com",
+                token=os.environ["TEST_TOKEN"],
+                host=os.environ["TEST_API_URL"],
             )
         >>> response: CompletionResponse = client.complete(request, "pharia-1-llm-7b-control")
     """
@@ -743,8 +743,8 @@ class AsyncClient:
     Example usage:
         >>> request = CompletionRequest(prompt=Prompt.from_text(f"Request"), maximum_tokens=64)
         >>> async with AsyncClient(
-                token=os.environ["AA_TOKEN"],
-                host="https://inference-api.your-domain.com"
+                token=os.environ["TEST_TOKEN"],
+                host=os.environ["TEST_API_URL"],
             ) as client:
                 response: CompletionResponse = await client.complete(request, "pharia-1-llm-7b-control")
     """
diff --git a/docs/source/index.rst b/docs/source/index.rst
index 8339ef5..16a6d57 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -18,7 +18,7 @@ Synchronous client.
       from aleph_alpha_client import Client, CompletionRequest, Prompt
       import os
 
-      client = Client(token=os.getenv("AA_TOKEN"), host="https://inference-api.your-domain.com")
+      client = Client(token=os.environ["TEST_TOKEN"], host=os.environ["TEST_API_URL"])
       prompt = Prompt.from_text("Provide a short description of AI:")
       request = CompletionRequest(prompt=prompt, maximum_tokens=20)
       result = client.complete(request, model="luminous-extended")
@@ -32,7 +32,7 @@ Synchronous client with prompt containing an image.
       from aleph_alpha_client import Client, CompletionRequest, PromptTemplate, Image
       import os
 
-      client = Client(token=os.getenv("AA_TOKEN"), host="https://inference-api.your-domain.com")
+      client = Client(token=os.environ["TEST_TOKEN"], host=os.environ["TEST_API_URL"])
       image = Image.from_file("path-to-an-image")
       prompt_template = PromptTemplate("{{image}}This picture shows ")
       prompt = prompt_template.to_prompt(image=prompt_template.placeholder(image))
@@ -50,7 +50,7 @@ Asynchronous client.
    from aleph_alpha_client import AsyncClient, CompletionRequest, Prompt
 
    # Can enter context manager within an async function
-   async with AsyncClient(token=os.environ["AA_TOKEN"], host="https://inference-api.your-domain.com") as client:
+   async with AsyncClient(token=os.environ["TEST_TOKEN"], host=os.environ["TEST_API_URL"]) as client:
       request = CompletionRequest(
          prompt=Prompt.from_text("Request"),
          maximum_tokens=64,
diff --git a/tests/test_clients.py b/tests/test_clients.py
index 32dd135..3ea7704 100644
--- a/tests/test_clients.py
+++ b/tests/test_clients.py
@@ -16,25 +16,27 @@ def test_api_version_mismatch_client(httpserver: HTTPServer):
     httpserver.expect_request("/version").respond_with_data("0.0.0")
 
     with pytest.raises(RuntimeError):
-        Client(host=httpserver.url_for(""), token="AA_TOKEN").validate_version()
+        Client(host=httpserver.url_for(""), token="TEST_TOKEN").validate_version()
 
 
 async def test_api_version_mismatch_async_client(httpserver: HTTPServer):
     httpserver.expect_request("/version").respond_with_data("0.0.0")
 
     with pytest.raises(RuntimeError):
-        async with AsyncClient(host=httpserver.url_for(""), token="AA_TOKEN") as client:
+        async with AsyncClient(
+            host=httpserver.url_for(""), token="TEST_TOKEN"
+        ) as client:
             await client.validate_version()
 
 
 def test_api_version_correct_client(httpserver: HTTPServer):
     httpserver.expect_request("/version").respond_with_data(MIN_API_VERSION)
-    Client(host=httpserver.url_for(""), token="AA_TOKEN").validate_version()
+    Client(host=httpserver.url_for(""), token="TEST_TOKEN").validate_version()
 
 
 async def test_api_version_correct_async_client(httpserver: HTTPServer):
     httpserver.expect_request("/version").respond_with_data(MIN_API_VERSION)
-    async with AsyncClient(host=httpserver.url_for(""), token="AA_TOKEN") as client:
+    async with AsyncClient(host=httpserver.url_for(""), token="TEST_TOKEN") as client:
         await client.validate_version()
 
 
@@ -71,7 +73,7 @@ def test_nice_flag_on_client(httpserver: HTTPServer):
         ).to_json()
     )
 
-    client = Client(host=httpserver.url_for(""), token="AA_TOKEN", nice=True)
+    client = Client(host=httpserver.url_for(""), token="TEST_TOKEN", nice=True)
 
     request = CompletionRequest(prompt=Prompt.from_text("Hello world"))
     client.complete(request, model="luminous")
@@ -96,7 +98,7 @@ async def test_nice_flag_on_async_client(httpserver: HTTPServer):
 
     async with AsyncClient(
         host=httpserver.url_for(""),
-        token="AA_TOKEN",
+        token="TEST_TOKEN",
         nice=True,
         request_timeout_seconds=1,
     ) as client:
@@ -127,7 +129,7 @@ def test_tags_on_client(httpserver: HTTPServer):
     client = Client(
         host=httpserver.url_for(""),
         request_timeout_seconds=1,
-        token="AA_TOKEN",
+        token="TEST_TOKEN",
         tags=["tim-tagger"],
     )
 
@@ -151,7 +153,7 @@ async def test_tags_on_async_client(httpserver: HTTPServer):
     )
 
     async with AsyncClient(
-        host=httpserver.url_for(""), token="AA_TOKEN", tags=["tim-tagger"]
+        host=httpserver.url_for(""), token="TEST_TOKEN", tags=["tim-tagger"]
     ) as client:
         await client.complete(request, model="luminous")
 
diff --git a/tests/test_error_handling.py b/tests/test_error_handling.py
index 73a197e..949263c 100644
--- a/tests/test_error_handling.py
+++ b/tests/test_error_handling.py
@@ -29,7 +29,7 @@ def test_translate_errors():
 def test_retry_sync(httpserver: HTTPServer):
     num_retries = 2
     client = Client(
-        token="AA_TOKEN", host=httpserver.url_for(""), total_retries=num_retries
+        token="TEST_TOKEN", host=httpserver.url_for(""), total_retries=num_retries
     )
     expect_retryable_error(httpserver, num_calls_expected=num_retries)
     expect_valid_version(httpserver)
@@ -40,7 +40,7 @@ def test_retry_sync(httpserver: HTTPServer):
 def test_retry_sync_post(httpserver: HTTPServer):
     num_retries = 2
     client = Client(
-        host=httpserver.url_for(""), token="AA_TOKEN", total_retries=num_retries
+        host=httpserver.url_for(""), token="TEST_TOKEN", total_retries=num_retries
     )
     expect_retryable_error(httpserver, num_calls_expected=num_retries)
     expect_valid_completion(httpserver)
@@ -52,7 +52,7 @@ def test_retry_sync_post(httpserver: HTTPServer):
 def test_exhaust_retries_sync(httpserver: HTTPServer):
     num_retries = 1
     client = Client(
-        token="AA_TOKEN", host=httpserver.url_for(""), total_retries=num_retries
+        token="TEST_TOKEN", host=httpserver.url_for(""), total_retries=num_retries
     )
     expect_retryable_error(
         httpserver,
@@ -69,7 +69,7 @@ async def test_retry_async(httpserver: HTTPServer):
     expect_valid_version(httpserver)
 
     async with AsyncClient(
-        token="AA_TOKEN", host=httpserver.url_for(""), total_retries=num_retries
+        token="TEST_TOKEN", host=httpserver.url_for(""), total_retries=num_retries
     ) as client:
         await client.get_version()
 
@@ -80,7 +80,7 @@ async def test_retry_async_post(httpserver: HTTPServer):
     expect_valid_completion(httpserver)
 
     async with AsyncClient(
-        token="AA_TOKEN", host=httpserver.url_for(""), total_retries=num_retries
+        token="TEST_TOKEN", host=httpserver.url_for(""), total_retries=num_retries
     ) as client:
         request = CompletionRequest(prompt=Prompt.from_text(""), maximum_tokens=7)
         await client.complete(request, model="FOO")
@@ -95,7 +95,7 @@ async def test_exhaust_retries_async(httpserver: HTTPServer):
     )
     with pytest.raises(BusyError):
         async with AsyncClient(
-            token="AA_TOKEN", host=httpserver.url_for(""), total_retries=num_retries
+            token="TEST_TOKEN", host=httpserver.url_for(""), total_retries=num_retries
         ) as client:
             await client.get_version()