diff --git a/ruma-identity-service-api/CHANGELOG.md b/ruma-identity-service-api/CHANGELOG.md
new file mode 100644
index 00000000..e69de29b
diff --git a/ruma-identity-service-api/Cargo.toml b/ruma-identity-service-api/Cargo.toml
new file mode 100644
index 00000000..1a6be6fe
--- /dev/null
+++ b/ruma-identity-service-api/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "ruma-identity-service-api"
+version = "0.0.0"
+authors = ["Jonas Platte <jplatte@posteo.de>"]
+description = "Types for the endpoints in the Matrix identity service API."
+homepage = "https://www.ruma.io/"
+keywords = ["matrix", "chat", "messaging", "ruma"]
+license = "MIT"
+readme = "README.md"
+repository = "https://github.com/ruma/ruma"
+edition = "2018"
+
+[dependencies]
+ruma-api = { version = "=0.17.0-alpha.1", path = "../ruma-api" }
diff --git a/ruma-identity-service-api/LICENSE b/ruma-identity-service-api/LICENSE
new file mode 100644
index 00000000..f0d48ccb
--- /dev/null
+++ b/ruma-identity-service-api/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2020 Jonas Platte
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/ruma-identity-service-api/README.md b/ruma-identity-service-api/README.md
new file mode 100644
index 00000000..35710af9
--- /dev/null
+++ b/ruma-identity-service-api/README.md
@@ -0,0 +1 @@
+# ruma-identity-service-api
diff --git a/ruma-identity-service-api/src/lib.rs b/ruma-identity-service-api/src/lib.rs
new file mode 100644
index 00000000..8b137891
--- /dev/null
+++ b/ruma-identity-service-api/src/lib.rs
@@ -0,0 +1 @@
+
diff --git a/ruma/Cargo.toml b/ruma/Cargo.toml
index e1a43a45..dfb57380 100644
--- a/ruma/Cargo.toml
+++ b/ruma/Cargo.toml
@@ -21,6 +21,7 @@ unstable-synapse-quirks = ["ruma-client-api/unstable-synapse-quirks"]
 appservice-api = ["ruma-api", "ruma-appservice-api", "ruma-events"]
 client-api = ["ruma-api", "ruma-client-api", "ruma-events"]
 federation-api = ["ruma-api", "ruma-federation-api", "ruma-signatures"]
+identity-service-api = ["ruma-api", "ruma-identity-service-api"]
 
 [dependencies]
 ruma-common = { version = "0.2.0", path = "../ruma-common" }
@@ -33,3 +34,4 @@ ruma-api = { version = "=0.17.0-alpha.1", path = "../ruma-api", optional = true
 ruma-appservice-api = { version = "=0.2.0-alpha.1", path = "../ruma-appservice-api", optional = true }
 ruma-client-api = { version = "=0.10.0-alpha.1", path = "../ruma-client-api", optional = true }
 ruma-federation-api = { version = "0.0.3", path = "../ruma-federation-api", optional = true }
+ruma-identity-service-api = { version = "0.0.0", path = "../ruma-identity-service-api", optional = true }
diff --git a/ruma/src/lib.rs b/ruma/src/lib.rs
index 99559215..4fcf34a7 100644
--- a/ruma/src/lib.rs
+++ b/ruma/src/lib.rs
@@ -46,4 +46,7 @@ pub mod api {
     #[cfg(feature = "ruma-federation-api")]
     #[doc(inline)]
     pub use ruma_federation_api as federation;
+    #[cfg(feature = "identity-service-api")]
+    #[doc(inline)]
+    pub use ruma_identity_service_api as identity_service;
 }