diff --git a/Cargo.toml b/Cargo.toml
index 24ab361e..2e676bb9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,10 +11,16 @@ repository = "https://github.com/ruma/ruma-client-api"
 version = "0.1.0"
 
 [dependencies]
-ruma-api = "0.3.0"
-ruma-events = "0.3.0"
-ruma-identifiers = "0.6.0"
-ruma-signatures = "0.1.0"
-serde = "0.8.21"
-serde_derive = "0.8.21"
-serde_json = "0.8.4"
+ruma-events = "0.8.0"
+ruma-identifiers = "0.11.0"
+ruma-signatures = "0.3.0"
+serde = "1.0.2"
+serde_derive = "1.0.2"
+serde_json = "1.0.1"
+
+[dependencies.hyper]
+git = "https://github.com/hyperium/hyper"
+rev = "fed04dfb58e19b408322d4e5ca7474871e848a35"
+
+[dependencies.ruma-api]
+git = "https://github.com/ruma/ruma-api"
diff --git a/src/lib.rs b/src/lib.rs
index c4aa85ba..93bcdb35 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -3,43 +3,47 @@
 //! shared by client and server code.
 
 #![deny(missing_debug_implementations)]
+#![feature(associated_consts, try_from)]
 #![warn(missing_docs)]
 
+extern crate hyper;
 extern crate ruma_api;
 extern crate ruma_events;
 extern crate ruma_identifiers;
 extern crate ruma_signatures;
 extern crate serde;
-#[macro_use] extern crate serde_derive;
 extern crate serde_json;
 
-pub use ruma_api::{Endpoint, Method};
-
-/// Endpoints for the r0.x.x versions of the client API specification.
-pub mod r0 {
-    pub mod account;
-    pub mod alias;
-    pub mod config;
-    pub mod contact;
-    pub mod context;
-    pub mod directory;
-    pub mod filter;
-    pub mod media;
-    pub mod membership;
-    pub mod presence;
-    pub mod profile;
-    pub mod push;
-    pub mod receipt;
-    pub mod redact;
-    pub mod room;
-    pub mod search;
-    pub mod send;
-    pub mod server;
-    pub mod session;
-    pub mod sync;
-    pub mod tag;
-    pub mod typing;
-    pub mod voip;
-}
+// /// Endpoints for the r0.x.x versions of the client API specification.
+// pub mod r0 {
+//     pub mod account;
+//     pub mod alias;
+//     pub mod config;
+//     pub mod contact;
+//     pub mod context;
+//     pub mod directory;
+//     pub mod filter;
+//     pub mod media;
+//     pub mod membership;
+//     pub mod presence;
+//     pub mod profile;
+//     pub mod push;
+//     pub mod receipt;
+//     pub mod redact;
+//     pub mod room;
+//     pub mod search;
+//     pub mod send;
+//     pub mod server;
+//     pub mod session;
+//     pub mod sync;
+//     pub mod tag;
+//     pub mod typing;
+//     pub mod voip;
+// }
 
 pub mod unversioned;
+
+/// An error when converting an endpoint's request into a `hyper::Request` or converting a
+/// `hyper::Response` into an endpoint's response.
+#[derive(Debug)]
+pub struct Error;
diff --git a/src/unversioned.rs b/src/unversioned.rs
index acc56711..d08cb253 100644
--- a/src/unversioned.rs
+++ b/src/unversioned.rs
@@ -2,49 +2,65 @@
 
 /// [GET /_matrix/client/versions](https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-versions)
 pub mod get_supported_versions {
-    /// Details about this API endpoint.
-    #[derive(Clone, Copy, Debug)]
+    use std::convert::TryFrom;
+
+    use hyper::{Method, Request as HyperRequest, Response as HyperResponse, StatusCode};
+    use ruma_api::{Endpoint as ApiEndpoint, Metadata};
+
+    use Error;
+
+    /// Endpoint
+    #[derive(Debug)]
     pub struct Endpoint;
 
-    /// This API endpoint's response.
-    #[derive(Clone, Debug, Deserialize, Serialize)]
+    impl ApiEndpoint for Endpoint {
+        type Request = Request;
+        type Response = Response;
+
+        const METADATA: Metadata = Metadata {
+            description: "Get the versions of the client-server API supported by this homeserver.",
+            method: Method::Get,
+            name: "api_versions",
+            path: "/_matrix/client/versions",
+            rate_limited: false,
+            requires_authentication: true,
+        };
+    }
+
+    /// Request
+    #[derive(Debug, Clone)]
+    pub struct Request;
+
+    impl TryFrom<Request> for HyperRequest {
+        type Error = Error;
+        fn try_from(_request: Request) -> Result<HyperRequest, Self::Error> {
+            let metadata = Endpoint::METADATA;
+
+            let hyper_request = HyperRequest::new(
+                metadata.method,
+                metadata.path.parse().map_err(|_| Error)?,
+            );
+
+            Ok(hyper_request)
+        }
+    }
+
+    /// Response
+    #[derive(Debug, Clone)]
     pub struct Response {
         /// A list of Matrix client API protocol versions supported by the homeserver.
         pub versions: Vec<String>,
     }
 
-    impl ::Endpoint for Endpoint {
-        type BodyParams = ();
-        type PathParams = ();
-        type QueryParams = ();
-        type Response = Response;
+    impl TryFrom<HyperResponse> for Response {
+        type Error = Error;
 
-        fn method() -> ::Method {
-            ::Method::Get
-        }
-
-        fn request_path(_params: Self::PathParams) -> String {
-            Self::router_path().to_string()
-        }
-
-        fn router_path() -> &'static str {
-            "/_matrix/client/versions"
-        }
-
-        fn name() -> &'static str {
-            "api_version"
-        }
-
-        fn description() -> &'static str {
-            "Get the versions of the client-server API supported by this homeserver."
-        }
-
-        fn requires_authentication() -> bool {
-            false
-        }
-
-        fn rate_limited() -> bool {
-            false
+        fn try_from(hyper_response: HyperResponse) -> Result<Response, Self::Error> {
+            if hyper_response.status() == StatusCode::Ok {
+                Ok(Response { versions: vec![] })
+            } else {
+                Err(Error)
+            }
         }
     }
 }