diff --git a/Cargo.toml b/Cargo.toml
index de83145..cc79abf 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,14 @@ serde = { version = "1.0", features = [ "derive" ] }
 serde_json = "1.0"
 wasm-bindgen = "0.2"
 wasm-bindgen-futures = "0.4"
-web-sys = { version = "0.3", features = [ "Request", "Response", "ResponseInit", "Url" ] }
+web-sys = { version = "0.3", features = [
+    "Headers",
+    "Request",
+    "Response",
+    "ResponseInit",
+    "Url",
+    "UrlSearchParams"
+] }
 
 # The `console_error_panic_hook` crate provides better debugging of panics by
 # logging them with `console.error`. This is great for development, but requires
diff --git a/src/lib.rs b/src/lib.rs
index ef697e6..1c19174 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,8 +1,10 @@
 #[macro_use]
 extern crate lazy_static;
 
+#[macro_use]
 mod utils;
 mod router;
+mod sn;
 
 use cfg_if::cfg_if;
 use utils::{Error, MyResult};
@@ -28,6 +30,7 @@ lazy_static! {
 fn build_routes() -> router::Router {
     let mut router = router::Router::new(&default_route);
     router.add_route("/hello", &hello_world);
+    sn::build_routes(&mut router);
     return router;
 }
 
@@ -45,6 +48,19 @@ async fn hello_world(_req: Request, _url: Url) -> MyResult<Response> {
 #[wasm_bindgen]
 pub async fn handle_request_rs(req: Request) -> Response {
     let url = Url::new(&req.url()).unwrap();
+
+    if req.method() == "OPTIONS" {
+        return Response::new_with_opt_str_and_init(
+            None, ResponseInit::new()
+                .status(200)
+                .headers({
+                    let headers = Headers::new().unwrap();
+                    cors!(headers);
+                    headers
+                }.as_ref())
+        ).unwrap();
+    }
+
     let result = ROUTER.execute(req, url).await;
 
     match result {
diff --git a/src/sn.rs b/src/sn.rs
new file mode 100644
index 0000000..9b74b43
--- /dev/null
+++ b/src/sn.rs
@@ -0,0 +1,147 @@
+// Interface for Standard Notes (Actions)
+use crate::router::Router;
+use crate::utils::{self, Error, MyResult};
+use serde::{Serialize, Serializer};
+use std::vec::Vec;
+use web_sys::*;
+
+pub fn build_routes(router: &mut Router) {
+    router.add_route("/actions", &get_actions);
+}
+
+macro_rules! verify_secret {
+    ($url:expr, $params:ident, $config:ident) => {
+        let $config = utils::get_config();
+        let $params = UrlSearchParams::new_with_str(&$url.search())
+            .map_err(|_| Error::BadRequest("Failed to parse query string".into()))?;
+        if !$params.has("secret") {
+            return Err(Error::BadRequest("Secret needed".into()));
+        } else if $params.get("secret").unwrap() != $config.secret {
+            return Err(Error::Unauthorized("Secret mismatch".into()));
+        }
+    };
+}
+
+async fn get_actions(_req: Request, url: Url) -> MyResult<Response> {
+    verify_secret!(url, params, config);
+
+    let origin = url.origin();
+    let mut actions = vec![];
+
+    actions.push(Action {
+        label: "Publish".into(),
+        url: format!("{}/post?secret={}", origin, config.secret.clone()),
+        verb: Verb::Post,
+        context: Context::Item,
+        content_types: vec![ContentType::Note],
+        access_type: Some(AccessType::Decrypted)
+    });
+
+    let info = ActionsExtension {
+        identifier: config.plugin_identifier.clone(),
+        name: config.title.clone(),
+        description: format!("Standard Notes plugin for {}", config.title.clone()),
+        url: format!("{}/actions?secret={}", origin, config.secret.clone()),
+        content_type: ContentType::Extension,
+        supported_types: vec![ContentType::Note],
+        actions
+    };
+
+    Ok(Response::new_with_opt_str_and_init(
+        Some(&serde_json::to_string(&info)
+            .map_err(|_| Error::InternalError())?),
+        ResponseInit::new()
+            .status(200)
+            .headers({
+                let headers = Headers::new().unwrap();
+                headers.set("Content-Type", "application/json").unwrap();
+                cors!(headers);
+                headers
+            }.as_ref())
+    ).unwrap())
+}
+
+pub enum Verb {
+    Show,
+    Post,
+    Render
+}
+
+impl Serialize for Verb {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
+    {
+        serializer.serialize_str(match *self {
+            Verb::Show => "show",
+            Verb::Post => "post",
+            Verb::Render => "render"
+        })
+    }
+}
+
+pub enum Context {
+    Item
+}
+
+impl Serialize for Context {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
+    {
+        serializer.serialize_str(match *self {
+            Context::Item => "Item"
+        })
+    }
+}
+
+pub enum ContentType {
+    Note,
+    Extension
+}
+
+impl Serialize for ContentType {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
+    {
+        serializer.serialize_str(match *self {
+            ContentType::Note => "Note",
+            ContentType::Extension => "Extension"
+        })
+    }
+}
+
+pub enum AccessType {
+    Decrypted,
+    Encrypted
+}
+
+impl Serialize for AccessType {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
+    {
+        serializer.serialize_str(match *self {
+            AccessType::Decrypted => "decrypted",
+            AccessType::Encrypted => "encrypted"
+        })
+    }
+}
+
+#[derive(Serialize)]
+pub struct Action {
+    label: String,
+    url: String,
+    verb: Verb,
+    context: Context,
+    content_types: Vec<ContentType>,
+    access_type: Option<AccessType>
+}
+
+#[derive(Serialize)]
+pub struct ActionsExtension {
+    identifier: String,
+    name: String,
+    description: String,
+    url: String,
+    content_type: ContentType,
+    supported_types: Vec<ContentType>,
+    actions: Vec<Action>
+}
\ No newline at end of file
diff --git a/src/utils.rs b/src/utils.rs
index a873de3..c4978da 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -17,16 +17,30 @@ cfg_if! {
     }
 }
 
+#[macro_export]
+macro_rules! cors {
+    ($headers:ident) => {
+        $headers.set("Access-Control-Allow-Origin", "*").unwrap();
+        $headers.set("Access-Control-Allow-Headers", "*").unwrap();
+    };
+}
+
 pub type MyResult<T> = Result<T, Error>;
 
 pub enum Error {
-    NotFound(String)
+    NotFound(String),
+    BadRequest(String),
+    Unauthorized(String),
+    InternalError()
 }
 
 impl Error {
     pub fn status_code(&self) -> u16 {
         match self {
-            Error::NotFound(_) => 404
+            Error::NotFound(_) => 404,
+            Error::BadRequest(_) => 400,
+            Error::Unauthorized(_) => 401,
+            Error::InternalError() => 500
         }
     }
 }
@@ -36,6 +50,15 @@ impl Into<String> for Error {
         match self {
             Error::NotFound(reason) => {
                 format!("Not Found, Reason: {}", reason)
+            },
+            Error::BadRequest(reason) => {
+                format!("Bad Request, Reason: {}", reason)
+            },
+            Error::Unauthorized(reason) => {
+                format!("Unauthorized, Reason: {}", reason)
+            },
+            Error::InternalError() => {
+                format!("Internal Errror")
             }
         }
     }
@@ -44,7 +67,11 @@ impl Into<String> for Error {
 #[derive(Deserialize)]
 pub struct Config {
     // The secret value used to authenticate the Standard Notes plugin link
-    secret: String
+    pub secret: String,
+    // Title of the blog
+    pub title: String,
+    // Plugin identifier used for Standard Notes
+    pub plugin_identifier: String
 }
 
 pub fn get_config() -> Config {