diff --git a/src/proto/finger_protocol.rs b/src/proto/finger_protocol.rs
index 8b13789..cb0b1dc 100644
--- a/src/proto/finger_protocol.rs
+++ b/src/proto/finger_protocol.rs
@@ -1 +1,55 @@
+use std::path::PathBuf;
 
+use chrono::{DateTime, Utc};
+use nix::libc::uid_t;
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+pub struct FingerPerson {
+    /// User id
+    uid: uid_t,
+    /// User' home directory
+    dir: PathBuf,
+    /// Home phone no.
+    homephone: String,
+    /// Login name
+    name: String,
+    /// Office name
+    office: String,
+    /// Office phone no.
+    officephone: String,
+    /// Full name
+    realname: String,
+    /// User's shell
+    shell: String,
+    /// Last time mail was read
+    mailread: DateTime<Utc>,
+    /// Last time mail was received
+    mailrecv: DateTime<Utc>,
+    /// List of where the user is or has been
+    where_: Vec<FingerWhere>,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+pub struct FingerWhere {
+    /// Type/status of request
+    status: FingerWhereStatus,
+    /// Tty is writable
+    writable: bool,
+    /// Time of (last) login
+    loginat: DateTime<Utc>,
+    /// how long idle (if logged in)
+    idletime: DateTime<Utc>,
+    // TODO: are technically limited by UT_LINESIZE and UT_HOSTSIZE
+    /// Tty line
+    tty: String,
+    /// Remote hostname
+    host: String,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+#[repr(C)]
+pub enum FingerWhereStatus {
+    LastLog,
+    LoggedIn,
+}
diff --git a/src/server/varlink_api.rs b/src/server/varlink_api.rs
index f007536..5e7061e 100644
--- a/src/server/varlink_api.rs
+++ b/src/server/varlink_api.rs
@@ -3,10 +3,12 @@ use serde::{Deserialize, Serialize};
 use zlink::{ReplyError, service::MethodReply};
 
 use crate::{
-    proto::{WhodStatusUpdate, WhodUserEntry},
+    proto::{WhodStatusUpdate, WhodUserEntry, finger_protocol::FingerPerson},
     server::rwhod::RwhodStatusStore,
 };
 
+// Types for 'no.ntnu.pvv.roowho2.rwhod'
+
 #[zlink::proxy("no.ntnu.pvv.roowho2.rwhod")]
 pub trait RwhodClientProxy {
     async fn rwho(
@@ -40,12 +42,69 @@ pub enum RwhodClientResponse {
 pub type RwhoResponse = Vec<(String, WhodUserEntry)>;
 pub type RuptimeResponse = Vec<WhodStatusUpdate>;
 
-#[derive(Debug, ReplyError)]
+#[derive(Debug, Clone, PartialEq, ReplyError)]
 #[zlink(interface = "no.ntnu.pvv.roowho2.rwhod")]
 pub enum RwhodClientError {
     InvalidRequest,
 }
 
+// Types for 'no.ntnu.pvv.roowho2.finger'
+
+#[zlink::proxy("no.ntnu.pvv.roowho2.finger")]
+pub trait FingerClientProxy {
+    async fn finger(
+        &mut self,
+        user_queries: Vec<String>,
+    ) -> zlink::Result<Result<Vec<FingerPerson>, FingerClientError>>;
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(tag = "method", content = "parameters")]
+pub enum FingerClientRequest {
+    #[serde(rename = "no.ntnu.pvv.roowho2.finger.Finger")]
+    Finger { user_queries: Vec<String> },
+}
+
+#[derive(Debug, Serialize)]
+#[serde(untagged)]
+pub enum FingerClientResponse {
+    Finger(FingerResponse),
+}
+
+pub type FingerResponse = Vec<FingerPerson>;
+
+#[derive(Debug, Clone, PartialEq, ReplyError)]
+#[zlink(interface = "no.ntnu.pvv.roowho2.finger")]
+pub enum FingerClientError {
+    InvalidRequest,
+}
+
+// --------------------
+
+#[derive(Debug, Deserialize)]
+#[serde(untagged)]
+#[allow(unused)]
+enum Method {
+    Rwhod(RwhodClientRequest),
+    Finger(FingerClientRequest),
+}
+
+#[derive(Debug, Serialize)]
+#[serde(untagged)]
+#[allow(unused)]
+enum Reply {
+    Rwhod(RwhodClientResponse),
+    Finger(FingerClientResponse),
+}
+
+#[derive(Debug, Clone, PartialEq, Serialize)]
+#[serde(untagged)]
+#[allow(unused)]
+enum ReplyError {
+    Rwhod(RwhodClientError),
+    Finger(FingerClientError),
+}
+
 #[derive(Debug, Clone)]
 pub struct Roowhoo2ClientServer {
     whod_status_store: RwhodStatusStore,