diff --git a/Cargo.lock b/Cargo.lock
index 717b6e1..1ee55ac 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -11,6 +11,15 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "android_system_properties"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae221649c9976a6f6c56ae1facf410f3ddb33cc661c4b7b61020a912d4237fbc"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "anyhow"
 version = "1.0.104"
@@ -23,6 +32,12 @@ version = "1.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1505bd5d3d116872e7271a6d4e16d81d0c8570876c8de68093a09ac269d8aac0"
 
+[[package]]
+name = "autocfg"
+version = "1.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2032f911046de80f0a198e0901378627c33f59ea0ac00e363d481118bd70a53"
+
 [[package]]
 name = "axum"
 version = "0.8.9"
@@ -130,6 +145,20 @@ version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4e7648175b45a9a48536d676f68d918270699102aa8dab5496df06904c914600"
 
+[[package]]
+name = "chrono"
+version = "0.4.45"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1aa79e62e7697b8e29b513a68abacf485adcd1fe8284a4316c5ae868e6633327"
+dependencies = [
+ "iana-time-zone",
+ "js-sys",
+ "num-traits",
+ "serde",
+ "wasm-bindgen",
+ "windows-link",
+]
+
 [[package]]
 name = "cmov"
 version = "0.5.4"
@@ -142,6 +171,12 @@ version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a6ef517f0926dd24a1582492c791b6a4818a4d94e789a334894aa15b0d12f55c"
 
+[[package]]
+name = "core-foundation-sys"
+version = "0.8.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "773648b94d0e5d620f64f280777445740e61fe701025087ec8b57f45c791888b"
+
 [[package]]
 name = "cpufeatures"
 version = "0.3.1"
@@ -420,6 +455,30 @@ dependencies = [
  "tower-service",
 ]
 
+[[package]]
+name = "iana-time-zone"
+version = "0.1.65"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e31bc9ad994ba00e440a8aa5c9ef0ec67d5cb5e5cb0cc7f8b744a35b389cc470"
+dependencies = [
+ "android_system_properties",
+ "core-foundation-sys",
+ "iana-time-zone-haiku",
+ "js-sys",
+ "log",
+ "wasm-bindgen",
+ "windows-core",
+]
+
+[[package]]
+name = "iana-time-zone-haiku"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f31827a206f56af32e590ba56d5d2d085f558508192593743f16b2306495269f"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.18"
@@ -528,6 +587,15 @@ dependencies = [
  "windows-sys",
 ]
 
+[[package]]
+name = "num-traits"
+version = "0.2.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.21.4"
@@ -641,6 +709,7 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "axum",
+ "chrono",
  "dotenvy",
  "hmac",
  "secrecy",
@@ -665,6 +734,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "23f2a97da3e3873c73cb2a2e71b35c40ff95e0b1eefa8d72d8499a6928c3b5b3"
 dependencies = [
  "bitflags",
+ "chrono",
  "fallible-iterator",
  "fallible-streaming-iterator",
  "hashlink",
@@ -1155,12 +1225,65 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "windows-core"
+version = "0.62.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8e83a14d34d0623b51dce9581199302a221863196a1dde71a7663a4c2be9deb"
+dependencies = [
+ "windows-implement",
+ "windows-interface",
+ "windows-link",
+ "windows-result",
+ "windows-strings",
+]
+
+[[package]]
+name = "windows-implement"
+version = "0.60.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "053e2e040ab57b9dc951b72c264860db7eb3b0200ba345b4e4c3b14f67855ddf"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
+]
+
+[[package]]
+name = "windows-interface"
+version = "0.59.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f316c4a2570ba26bbec722032c4099d8c8bc095efccdc15688708623367e358"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
+]
+
 [[package]]
 name = "windows-link"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
 
+[[package]]
+name = "windows-result"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7781fa89eaf60850ac3d2da7af8e5242a5ea78d1a11c49bf2910bb5a73853eb5"
+dependencies = [
+ "windows-link",
+]
+
+[[package]]
+name = "windows-strings"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7837d08f69c77cf6b07689544538e017c1bfcf57e34b4c0ff58e6c2cd3b37091"
+dependencies = [
+ "windows-link",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.61.2"
diff --git a/Cargo.toml b/Cargo.toml
index 94c48a2..8014bcc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,6 +6,7 @@ edition = "2024"
 [dependencies]
 anyhow = { version = "1.0.104", features = ["backtrace"] }
 axum = { version = "0.8.9", features = ["macros"] }
+chrono = { version = "0.4.45", features = ["serde"] }
 dotenvy = "0.15.7"
 hmac = "0.13.0"
 secrecy = { version = "0.10.3", features = ["serde"] }
@@ -15,7 +16,7 @@ sha2 = "0.11.0"
 tempfile = "3.27.0"
 thiserror = "2.0.21"
 tokio = { version = "1.53.2", features = ["full"] }
-tokio-rusqlite = { version = "0.8.0", features = ["bundled", "uuid"] }
+tokio-rusqlite = { version = "0.8.0", features = ["bundled", "uuid", "chrono"] }
 tower = { version = "0.5.3", features = ["tracing"] }
 tower-http = { version = "0.7.1", features = ["trace", "request-id"] }
 tracing = "0.1.44"
diff --git a/src/api/mod.rs b/src/api/mod.rs
index 70fe030..ee85cfd 100644
--- a/src/api/mod.rs
+++ b/src/api/mod.rs
@@ -1,4 +1,5 @@
 pub mod users;
 pub mod syncs;
+pub mod stats;
 
 
diff --git a/src/api/stats.rs b/src/api/stats.rs
new file mode 100644
index 0000000..02cbd07
--- /dev/null
+++ b/src/api/stats.rs
@@ -0,0 +1,27 @@
+use axum::{Json, Router, extract::State, routing};
+use chrono::NaiveDate;
+use serde::Serialize;
+
+use crate::{app::AppState, app_error::AppError, auth_user::AuthUser};
+
+pub fn stats_routes() -> Router<AppState> {
+    Router::new()
+        .route("/contributions", routing::get(get_contributions))
+}
+
+
+#[derive(Debug, Serialize)]
+pub struct ResponseContribution {
+    date: NaiveDate,
+    document: String,
+    progress: f32,
+}
+
+#[tracing::instrument(skip(st))]
+pub async fn get_contributions(State(st) : State<AppState>, AuthUser{username} : AuthUser) -> Result<Json<Vec<ResponseContribution>>, AppError> {
+    let cs = st.stats
+        .get_contributions(&username).await?
+        .into_iter().map(|c| ResponseContribution{date: c.date, document: c.document_id, progress: c.progress})
+        .collect();
+    Ok(Json(cs))
+}
diff --git a/src/app.rs b/src/app.rs
index c209c70..0f185d1 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -2,12 +2,13 @@ use std::{path::Path, sync::Arc};
 
 use axum::extract::FromRef;
 
-use crate::{config::Config, reader::Reader, repository::{progress_sync::ProgressSync, users::Users}, writer::Writer};
+use crate::{config::Config, reader::Reader, repository::{progress_sync::ProgressSync, stats::Stats, users::Users}, writer::Writer};
 
 #[derive(Clone, FromRef)]
 pub struct AppState {
     pub users: Users,
     pub sync: ProgressSync,
+    pub stats: Stats,
 }
 
 impl AppState {
@@ -16,7 +17,8 @@ impl AppState {
         let reader = Arc::new(Reader::new(&db_path).await?);
         let users = Users::new(writer.clone(), reader.clone(), config.server_secret.clone());
         let sync = ProgressSync::new(writer.clone(), reader.clone());
-        Ok(Self{users, sync})
+        let stats = Stats::new(reader.clone());
+        Ok(Self{users, sync, stats})
     }
 }
 
diff --git a/src/app_error.rs b/src/app_error.rs
index 9397c80..58f3079 100644
--- a/src/app_error.rs
+++ b/src/app_error.rs
@@ -1,7 +1,7 @@
 use axum::{Json, http::StatusCode, response::IntoResponse};
 use thiserror::Error;
 
-use crate::repository::{progress_sync::SyncError, users::UserError};
+use crate::repository::{progress_sync::SyncError, stats::StatsError, users::UserError};
 
 
 
@@ -36,6 +36,14 @@ impl From<SyncError> for AppError {
     }
 }
 
+impl From<StatsError> for AppError {
+    fn from(value: StatsError) -> Self {
+        match value {
+            StatsError::DatabaseFailure(error) => Self::Internal(error.into()),
+        }
+    }
+}
+
 impl IntoResponse for AppError {
     fn into_response(self) -> axum::response::Response {
         let (status, error_code, msg) = match self {
diff --git a/src/main.rs b/src/main.rs
index be66a06..bcd9f30 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,5 @@
 use axum::{Json, Router, response::{IntoResponse as _, Response}, routing};
-use rukosync::{api::{syncs, users}, app::AppState, config::Config, };
+use rukosync::{api::{stats, syncs, users}, app::AppState, config::Config, };
 use tower_http::trace::TraceLayer;
 use tracing::level_filters::LevelFilter;
 use tracing_subscriber::{EnvFilter, fmt, layer::SubscriberExt as _, util::SubscriberInitExt as _};
@@ -8,7 +8,7 @@ use tracing_subscriber::{EnvFilter, fmt, layer::SubscriberExt as _, util::Subscr
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
     let level_filter = EnvFilter::builder()
-        .with_default_directive(LevelFilter::DEBUG.into())
+        .with_default_directive(LevelFilter::INFO.into())
         .from_env_lossy();
     tracing_subscriber::registry()
         .with(fmt::layer())
@@ -25,6 +25,7 @@ async fn main() -> anyhow::Result<()> {
         .route("/healthcheck", routing::get(healthcheck))
         .nest("/users", users::users_routes())
         .nest("/syncs", syncs::syncs_routes())
+        .nest("/stats", stats::stats_routes())
         .with_state(app_state)
         .layer(TraceLayer::new_for_http());
     let address = format!("0.0.0.0:{}", config.port);
diff --git a/src/repository/mod.rs b/src/repository/mod.rs
index 069772c..ac4a636 100644
--- a/src/repository/mod.rs
+++ b/src/repository/mod.rs
@@ -1,2 +1,3 @@
 pub mod progress_sync;
 pub mod users;
+pub mod stats;
diff --git a/src/repository/stats.rs b/src/repository/stats.rs
new file mode 100644
index 0000000..ed215dc
--- /dev/null
+++ b/src/repository/stats.rs
@@ -0,0 +1,126 @@
+use std::sync::Arc;
+
+use chrono::NaiveDate;
+use thiserror::Error;
+use tokio_rusqlite::{named_params, rusqlite};
+
+use crate::reader::Reader;
+
+#[derive(Clone)]
+pub struct Stats {
+    reader: Arc<Reader>,
+}
+
+// Github style contributions
+#[derive(Debug, PartialEq)]
+pub struct Contribution {
+    pub date: NaiveDate,
+    pub start_percentage: f32,
+    pub end_percentage: f32,
+    pub progress: f32,
+    pub document_id: String,
+}
+
+#[derive(Error, Debug)]
+pub enum StatsError {
+    #[error("Database call failed {0}")]
+    DatabaseFailure(#[from] tokio_rusqlite::Error)
+}
+
+impl Stats {
+    pub fn new(reader: Arc<Reader>) -> Self {
+        Self{reader}
+    }
+
+    pub async fn get_contributions(&self, username : &str) -> Result<Vec<Contribution>, StatsError> {
+        let username = username.to_owned();
+        let cs = self.reader.connection.call(move |conn| -> rusqlite::Result<Vec<Contribution>> {
+            let mut stmt = conn.prepare("select
+                date(progress.timestamp, 'unixepoch') as day,
+                progress.document_id,
+                min(progress.percentage) as start_percentage,
+                max(progress.percentage) as end_percentage,
+                max(progress.percentage) - min(progress.percentage) as progress
+                from progress
+                join users on users.id = progress.user_id
+                where users.username = :username
+                group by day, progress.document_id
+                order by day")?;
+            let x = stmt.query_map(named_params!{":username": username}, |row| {
+                let date = row.get(0)?;
+                let document_id = row.get(1)?;
+                let start_percentage = row.get(2)?;
+                let end_percentage = row.get(3)?;
+                let progress = row.get(4)?;
+                Ok(Contribution{date, start_percentage, end_percentage, progress, document_id})
+            })?.collect::<rusqlite::Result<Vec<_>>>()?;
+            Ok(x)
+        }).await?;
+        Ok(cs)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+
+use secrecy::SecretString;
+use tempfile::{TempDir, tempdir};
+
+use crate::{reader::Reader, repository::{progress_sync::{Document, ProgressSync}, stats::Stats, users::Users}, writer::Writer};
+    use super::*;
+
+    const USERNAME : &str = "foo@example.com";
+
+    async fn create_repositories() -> anyhow::Result<(TempDir, ProgressSync, Stats)> {
+        let temp_dir = tempdir()?;
+        let path = temp_dir.path().join("kosync.db");
+        let writer = Arc::new(Writer::new(&path).await?);
+        let reader = Arc::new(Reader::new(&path).await?);
+        let users = Users::new(writer.clone(), reader.clone(), SecretString::from("secret"));
+        let sync = ProgressSync::new(writer.clone(), reader.clone());
+        let stats = Stats::new(reader.clone());
+        users.create_user(USERNAME, SecretString::from("password")).await?;
+        Ok((temp_dir, sync, stats))
+    }
+
+    #[tokio::test]
+    async fn test_empty_progress() -> anyhow::Result<()> {
+        let (_t, _, stats) = create_repositories().await?;
+        let contributions = stats.get_contributions(USERNAME).await?;
+        assert_eq!(contributions, vec![]);
+        Ok(())
+    }
+
+    fn now() -> i64 {
+        chrono::Utc::now().timestamp()
+    }
+
+    #[tokio::test]
+    async fn test_single_read() -> anyhow::Result<()> {
+        let (_t, sync, stats) = create_repositories().await?;
+        let document_id = "foo".to_string();
+        let doc1 = Document {
+            document_id: document_id.clone(),
+            progress: "prog".to_string(),
+            percentage: 0.5,
+            device: "kobo".to_string(),
+            timestamp: now(),
+            filename: Some("foo.epub".to_string()),
+            title: Some("A Book".to_string()),
+            author: Some("A.N. Author".to_string()),
+            ..Document::default()
+        };
+        sync.set_progress(USERNAME, &doc1).await?;
+        let contributions = stats.get_contributions(USERNAME).await?;
+        let today = chrono::Utc::now().date_naive();
+        let wanted = Contribution {
+            date: today,
+            start_percentage: 0.5,
+            end_percentage: 0.5,
+            progress: 0.0,
+            document_id: document_id.clone()
+        };
+        assert_eq!(contributions, vec![wanted]);
+        Ok(())
+    }
+}