diff --git a/README.md b/README.md
index dc13ac7..161baa5 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,70 @@ TODO INSTALL setup a KBase pypi org and publish there
 
 ## Usage
 
-TODO USAGE
+Both sync and async versions of the client are provided - `KBaseAuthClient`
+and `AsyncKBaseAuthClient`, respectively. Here we demonstrate usage of the async client -
+to use the sync client, just switch the client name when creating the client and remove the
+`async` and `await` keywords. The examples assume there is a valid KBase token in the
+`token` variable.
+
+Note that all methods have internal caches and further caching is not necessary.
+
+Replace the CI environment url with the url of the environment you wish to query.
+
+### Get the version of the auth service
+
+```python
+from kbase.auth import AsyncKBaseAuthClient
+
+async with await AsyncKBaseAuthClient.create("https://ci.kbase.us/services/auth") as cli:
+    print(await cli.service_version())
+0.7.2
+```
+
+### Get a token
+
+This is the cheapest method to get a KBase username from a token.
+
+```python
+from kbase.auth import AsyncKBaseAuthClient
+
+async with await AsyncKBaseAuthClient.create("https://ci.kbase.us/services/auth") as cli:
+    print(await cli.get_token(token))
+Token(id='67797406-c6a3-4ee0-870d-976739dacd61', user='gaprice', created=1755561300704, expires=1763337300704, cachefor=300000)
+```
+
+### Get a user
+
+```python
+from kbase.auth import AsyncKBaseAuthClient
+
+async with await AsyncKBaseAuthClient.create("https://ci.kbase.us/services/auth") as cli:
+    print(await cli.get_user(token))
+User(user='gaprice', customroles=['KBASE_STAFF', 'goofypants'])
+```
+
+### Validate usernames
+
+```python
+from kbase.auth import AsyncKBaseAuthClient
+
+async with await AsyncKBaseAuthClient.create("https://ci.kbase.us/services/auth") as cli:
+    print(await cli.validate_usernames(token, "gaprice", "superfake"))
+{'gaprice': True, 'superfake': False}
+```
+
+### Without a context manager
+
+The clients can be used without a context manager, in which case the user is responsible for
+ensuring they're closed:
+
+```python
+from kbase.auth import AsyncKBaseAuthClient
+
+cli = await AsyncKBaseAuthClient.create("https://ci.kbase.us/services/auth")
+
+await cli.close()
+```
 
 ## Development
 
@@ -40,6 +103,7 @@ uv run scripts/process_unasync.py
 * Releases
   * The main branch is the stable branch. Releases are made from the develop branch to the main
     branch.
+  * Update the version in `auth.py`.
   * Tag the version in git and github.
   * Create a github release.
 
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
new file mode 100644
index 0000000..1318780
--- /dev/null
+++ b/RELEASE_NOTES.md
@@ -0,0 +1,3 @@
+## 0.1.0
+
+* Initial release
diff --git a/src/kbase/_auth/models.py b/src/kbase/_auth/models.py
index 7184518..8e45c89 100644
--- a/src/kbase/_auth/models.py
+++ b/src/kbase/_auth/models.py
@@ -39,5 +39,5 @@ class User:
 
 VALID_USER_FIELDS: set[str] = {f.name for f in fields(User)}
 """
-The field names for the user dataclass.
+The field names for the User dataclass.
 """
diff --git a/src/kbase/auth.py b/src/kbase/auth.py
index 24ac442..340e23a 100644
--- a/src/kbase/auth.py
+++ b/src/kbase/auth.py
@@ -13,3 +13,6 @@
     Token,  # @UnusedImport
     User,  # @UnusedImport
 )
+
+
+__version__ = "0.1.0"
diff --git a/test/test_client.py b/test/test_client.py
index bad72ae..70c6d25 100644
--- a/test/test_client.py
+++ b/test/test_client.py
@@ -12,9 +12,14 @@
     KBaseAuthClient,
     Token,
     User,
+    __version__ as ver,
 )
 
 
+def test_version():
+    assert ver == "0.1.0"
+
+
 async def _create_fail(url: str, expected: Exception, cachesize=1, timer=time.time):
     with pytest.raises(type(expected), match=f"^{expected.args[0]}$"):
         KBaseAuthClient.create(url, cache_max_size=cachesize, timer=timer)