diff --git a/docs/api/index.rst b/docs/api/index.rst
--- a/docs/api/index.rst
+++ b/docs/api/index.rst
@@ -11,3 +11,4 @@
    api-documentation
    metadata
    use-cases
+   register-account
diff --git a/docs/api/register-account.rst b/docs/api/register-account.rst
new file mode 100644
--- /dev/null
+++ b/docs/api/register-account.rst
@@ -0,0 +1,45 @@
+.. _register-account:
+
+.. admonition:: Intended audience
+   :class: important
+
+   - deposit clients
+   - sysadm staff members
+
+Register account
+================
+
+.. _register-account-as-deposit-client:
+
+As a deposit client
+-------------------
+
+For this, as a client, you need to register an account on the swh keycloak `production
+<https://archive.softwareheritage.org/oidc/login/?next_path=https://archive.softwareheritage.org/>`_
+or `staging
+<https://webapp.staging.swh.network/oidc/login/?next_path=https://webapp.staging.swh.network/>`_
+instance.
+
+.. _register-account-as-sysadm:
+
+As a sysadm
+-----------
+
+
+1. Retrieve the deposit client login (through email exchange or any other media).
+
+2. Require a :ref:`provider url <swh-deposit-provider-url-definition>` from the deposit
+   client (through email exchange or any other media).
+
+3. Within the keycloak `production instance <https://auth.softwareheritage.org/auth/admin/SoftwareHeritage/console/#/realms/SoftwareHeritage>`_ or `staging
+   instance <https://auth.softwareheritage.org/auth/admin/SoftwareHeritageStaging/console/#/realms/SoftwareHeritageStaging>`_, add the `swh.deposit.api` role to the deposit
+   client login.
+
+4. Create an :ref:`associated deposit collection
+   <swh-deposit-add-client-and-collection>` in the deposit instance.
+
+5. Create :ref:`a deposit client <swh-deposit-add-client-and-collection>` with the
+   provider url in the deposit instance.
+
+6. To ensure everything is ok, ask the deposit client to check they can access at least
+   the service document iri (authenticated).
diff --git a/docs/api/user-manual.rst b/docs/api/user-manual.rst
--- a/docs/api/user-manual.rst
+++ b/docs/api/user-manual.rst
@@ -10,8 +10,8 @@
 Requirements
 ------------
 
-You need to have an account on the Software Heritage deposit application to be
-able to use the service.
+You need to :ref:`have an account on the Software Heritage deposit application
+<register-account-as-deposit-client>` to be able to use the service.
 
 Please `contact the Software Heritage team <deposit@softwareheritage.org>`_ for
 more information on how to get access to this service.
diff --git a/docs/internals/prod-environment.rst b/docs/internals/prod-environment.rst
--- a/docs/internals/prod-environment.rst
+++ b/docs/internals/prod-environment.rst
@@ -53,6 +53,8 @@
     sudo django-admin migrate --settings=swh.deposit.settings.production
 
 
+.. _swh-deposit-add-client-and-collection:
+
 Add client and collection
 -------------------------
 
diff --git a/docs/specs/protocol-reference.rst b/docs/specs/protocol-reference.rst
--- a/docs/specs/protocol-reference.rst
+++ b/docs/specs/protocol-reference.rst
@@ -74,6 +74,8 @@
 including a link to download its source code.
 This is not a technical requirement, but it improves discoverability.
 
+.. _swh-deposit-provider-url-definition:
+
 Clients may not submit arbitrary URLs; the server will check the URLs they submit
 belongs to a "namespace" they own, known as the ``provider_url`` of the client. For
 example, if a client has their ``provider_url`` set to ``https://example.org/foo/`` they