diff --git a/.gitignore b/.gitignore
index 1d2a7b05a..22cae907c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -54,3 +54,6 @@ releasenotes/build
 
 # Files created by doc build
 doc/source/api
+
+# Files created by API build
+api-ref/build/
diff --git a/api-ref/source/conf.py b/api-ref/source/conf.py
new file mode 100644
index 000000000..88984828c
--- /dev/null
+++ b/api-ref/source/conf.py
@@ -0,0 +1,131 @@
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import subprocess
+import sys
+
+
+on_rtd = os.environ.get('READTHEDOCS', None) == 'True'
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+sys.path.insert(0, os.path.abspath('../../'))
+sys.path.insert(0, os.path.abspath('../'))
+sys.path.insert(0, os.path.abspath('./'))
+# -- General configuration ----------------------------------------------------
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
+extensions = [
+    'sphinx.ext.autodoc',
+    'sphinxcontrib.autohttp.flask',
+    'sphinxcontrib.pecanwsme.rest',
+    'wsmeext.sphinxext',
+]
+
+if not on_rtd:
+    extensions.append('oslosphinx')
+
+wsme_protocols = ['restjson']
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+# autodoc generation is a bit aggressive and a nuisance when doing heavy
+# text edit cycles.
+# execute "export SPHINX_DEBUG=1" in your terminal to disable
+
+# The suffix of source filenames.
+source_suffix = '.rst'
+
+# The master toctree document.
+master_doc = 'index'
+
+# General information about the project.
+project = u'Workflow Service API Reference'
+copyright = u'2017, Mistral Contributors'
+
+# The version info for the project you're documenting, acts as replacement for
+# |version| and |release|, also used in various other places throughout the
+# built documents.
+from mistral.version import version_info
+release = version_info.release_string()
+version = version_info.version_string()
+
+# If true, sectionauthor and moduleauthor directives will be shown in the
+# output. They are ignored by default.
+show_authors = False
+
+# If true, '()' will be appended to :func: etc. cross-reference text.
+add_function_parentheses = True
+
+# If true, the current module name will be prepended to all description
+# unit titles (such as .. function::).
+add_module_names = True
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = 'sphinx'
+
+# -- Options for HTML output --------------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+# html_static_path = ['_static']
+
+if on_rtd:
+    html_theme_path = ['.']
+    html_theme = 'sphinx_rtd_theme'
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = '%sdoc' % project
+
+# A list of ignored prefixes for module index sorting.
+modindex_common_prefix = ['mistral.']
+
+# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
+# using the given strftime format.
+# html_last_updated_fmt = '%b %d, %Y'
+git_cmd = ["git", "log", "--pretty=format:'%ad, commit %h'", "--date=local",
+           "-n1"]
+html_last_updated_fmt = subprocess.Popen(
+    git_cmd, stdout=subprocess.PIPE).communicate()[0]
+
+# The name for this set of Sphinx documents. If None, it defaults to
+# "<project> v<release> documentation".
+html_title = 'Mistral API Reference'
+
+# Custom sidebar templates, maps document names to template names.
+html_sidebars = {
+    'index': [
+        'sidebarlinks.html', 'localtoc.html', 'searchbox.html',
+        'sourcelink.html'
+    ],
+    '**': [
+        'localtoc.html', 'relations.html',
+        'searchbox.html', 'sourcelink.html'
+    ]
+}
+
+# -- Options for manual page output -------------------------------------------
+
+# One entry per manual page. List of tuples
+# (source start file, name, description, authors, manual section).
+man_pages = [
+    ('index', 'mistral', u'Mistral',
+     [u'OpenStack Foundation'], 1)
+]
+
+# If true, show URL addresses after external links.
+man_show_urls = True
diff --git a/api-ref/source/index.rst b/api-ref/source/index.rst
new file mode 100644
index 000000000..9481c1377
--- /dev/null
+++ b/api-ref/source/index.rst
@@ -0,0 +1,8 @@
+===============================
+OpenStack Workflow Service APIs
+===============================
+
+.. toctree::
+   :maxdepth: 1
+
+   v2/index
diff --git a/api-ref/source/v2/action.inc b/api-ref/source/v2/action.inc
new file mode 100644
index 000000000..e69de29bb
diff --git a/api-ref/source/v2/cron-trigger.inc b/api-ref/source/v2/cron-trigger.inc
new file mode 100644
index 000000000..e69de29bb
diff --git a/api-ref/source/v2/execution.inc b/api-ref/source/v2/execution.inc
new file mode 100644
index 000000000..e69de29bb
diff --git a/api-ref/source/v2/task.inc b/api-ref/source/v2/task.inc
new file mode 100644
index 000000000..e69de29bb
diff --git a/api-ref/source/v2/workbook.inc b/api-ref/source/v2/workbook.inc
new file mode 100644
index 000000000..e69de29bb
diff --git a/api-ref/source/v2/workflow.inc b/api-ref/source/v2/workflow.inc
new file mode 100644
index 000000000..e69de29bb
diff --git a/test-requirements.txt b/test-requirements.txt
index 62bce1450..e1d8dfeb2 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -7,6 +7,7 @@ hacking<0.11,>=0.10.0
 nose # LGPL
 oslosphinx>=4.7.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
+os-api-ref>=1.0.0 # Apache-2.0
 pyflakes==0.8.1 # MIT
 mock>=2.0 # BSD
 requests-mock>=1.1 # Apache-2.0
diff --git a/tox.ini b/tox.ini
index 87c5adcac..f1bab3df6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -58,6 +58,14 @@ commands = python setup.py build_sphinx
 [testenv:releasenotes]
 commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
 
+[testenv:api-ref]
+# This environment is called from CI scripts to test and publish
+# the API Ref to developer.openstack.org.
+commands =
+  rm -rf api-ref/build
+  sphinx-build -W -b html -d api-ref/build/doctrees api-ref/source api-ref/build/html
+whitelist_externals = rm
+
 #Skip PEP257 violation.
 [flake8]
 ignore = D100,D101,D102,D103,D104,D105,D200,D203,D202,D204,D205,D208,D400,D401