diff --git a/lib/ain-ocean/src/api/block.rs b/lib/ain-ocean/src/api/block.rs
index 80c8191b90..8da1ba7cca 100644
--- a/lib/ain-ocean/src/api/block.rs
+++ b/lib/ain-ocean/src/api/block.rs
@@ -1,12 +1,15 @@
 use axum::{
-    debug_handler,
     extract::{Path, Query},
     routing::get,
     Json, Router,
 };
 use serde::{Deserialize, Serialize};
 
-use crate::api_paged_response::ApiPagedResponse;
+use crate::{
+    api_paged_response::ApiPagedResponse,
+    api_query::PaginationQuery,
+    error::OceanResult,
+};
 
 #[derive(Deserialize)]
 struct BlockId {
@@ -18,29 +21,23 @@ struct BlockHash {
     hash: String,
 }
 
-#[derive(Deserialize)]
-pub struct ListBlocksQuery {
-    pub size: usize,
-    pub next: Option<String>,
-}
-
-#[debug_handler]
-async fn list_blocks(Query(query): Query<ListBlocksQuery>) -> Json<ApiPagedResponse<Block>> {
-    // TODO(): query from db
-    // db::block::list(req).await...
+async fn list_blocks(Query(query): Query<PaginationQuery>) -> OceanResult<Json<ApiPagedResponse<Block>>> {
+    // TODO(): query from lvldb.. or maybe pull from index
     let blocks = vec![
         Block { id: "0".into() },
         Block { id: "1".into() },
         Block { id: "2".into() },
     ];
 
-    Json(ApiPagedResponse::of(blocks, query.size, |block| {
+    Ok(Json(ApiPagedResponse::of(blocks, query.size, |block| {
         block.clone().id
-    }))
+    })))
 }
 
-async fn get_block(Path(BlockId { id }): Path<BlockId>) -> String {
-    format!("Details of block with id {}", id)
+async fn get_block(Path(BlockId { id }): Path<BlockId>) -> OceanResult<Json<Block>> {
+    Ok(Json(Block {
+        id,
+    }))
 }
 
 async fn get_transactions(Path(BlockHash { hash }): Path<BlockHash>) -> String {
diff --git a/lib/ain-ocean/src/api/masternode.rs b/lib/ain-ocean/src/api/masternode.rs
index a15e184fd2..6b7011fab9 100644
--- a/lib/ain-ocean/src/api/masternode.rs
+++ b/lib/ain-ocean/src/api/masternode.rs
@@ -1,11 +1,23 @@
-use axum::{extract::Path, routing::get, Router};
+use axum::{extract::{Path, Query}, routing::get, Router, Json};
 
-async fn list_masternodes() -> String {
-    "List of masternodes".to_string()
+use crate::{
+    api_paged_response::ApiPagedResponse,
+    api_query::PaginationQuery,
+    error::OceanResult,
+    model::masternode::MasternodeData,
+};
+
+async fn list_masternodes(Query(query): Query<PaginationQuery>) -> OceanResult<Json<ApiPagedResponse<MasternodeData>>> {
+    let masternodes = vec![
+        MasternodeData::new("0"),
+    ];
+    Ok(Json(ApiPagedResponse::of(masternodes, query.size, |masternode| {
+        masternode.clone().id
+    })))
 }
 
-async fn get_masternode(Path(masternode_id): Path<String>) -> String {
-    format!("Details of masternode with id {}", masternode_id)
+async fn get_masternode(Path(masternode_id): Path<String>) -> OceanResult<Json<MasternodeData>> {
+    Ok(Json(MasternodeData::new(&masternode_id)))
 }
 
 pub fn router() -> Router {
diff --git a/lib/ain-ocean/src/api/poolpairs.rs b/lib/ain-ocean/src/api/poolpairs.rs
index 5950094938..f20fd790e6 100644
--- a/lib/ain-ocean/src/api/poolpairs.rs
+++ b/lib/ain-ocean/src/api/poolpairs.rs
@@ -100,7 +100,7 @@ pub fn router() -> Router {
             get(list_pool_swap_aggregates),
         )
         .route("/paths/swappable/:tokenId", get(get_swappable_tokens))
-        .route("/paths/best", get(get_best_path))
-        .route("/paths", get(get_all_paths))
+        .route("/paths/best/from/:fromTokenId/to/:toTokenId", get(get_best_path))
+        .route("/paths/from/:fromTokenId/to/:toTokenId", get(get_all_paths))
         .route("/dexprices", get(list_dex_prices))
 }
diff --git a/lib/ain-ocean/src/api_query.rs b/lib/ain-ocean/src/api_query.rs
new file mode 100644
index 0000000000..fcd1dadea8
--- /dev/null
+++ b/lib/ain-ocean/src/api_query.rs
@@ -0,0 +1,8 @@
+use serde::Deserialize;
+
+#[derive(Deserialize)]
+pub struct PaginationQuery {
+    pub size: usize,
+    pub next: Option<String>
+}
+
diff --git a/lib/ain-ocean/src/error.rs b/lib/ain-ocean/src/error.rs
index 1a037199cc..e0be55ee79 100644
--- a/lib/ain-ocean/src/error.rs
+++ b/lib/ain-ocean/src/error.rs
@@ -2,11 +2,10 @@ use axum::{
     http::StatusCode,
     response::{IntoResponse, Response},
 };
-use thiserror::Error;
 
 pub type OceanResult<T> = Result<T, OceanError>;
 
-#[derive(Error, Debug)]
+#[derive(thiserror::Error, Debug)]
 pub enum OceanError {}
 
 impl IntoResponse for OceanError {
diff --git a/lib/ain-ocean/src/lib.rs b/lib/ain-ocean/src/lib.rs
index 547943eaaa..15af10216d 100644
--- a/lib/ain-ocean/src/lib.rs
+++ b/lib/ain-ocean/src/lib.rs
@@ -1,4 +1,5 @@
 pub mod api_paged_response;
+pub mod api_query;
 pub mod error;
 mod indexer;
 
diff --git a/lib/ain-ocean/src/model/masternode.rs b/lib/ain-ocean/src/model/masternode.rs
index 27f1608dca..168bfbad77 100644
--- a/lib/ain-ocean/src/model/masternode.rs
+++ b/lib/ain-ocean/src/model/masternode.rs
@@ -25,6 +25,88 @@ pub struct MasternodeBlock {
     pub median_time: u64,
 }
 
+#[derive(Serialize, Deserialize, Debug, Default, Clone)]
+pub enum MasternodeState {
+    PreEnabled,
+    Enabled,
+    PreResigned,
+    Resigned,
+    PreBanned,
+    Banned,
+    #[default]
+    Unknown,
+}
+
+impl std::fmt::Display for MasternodeState {
+    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+       match self {
+        MasternodeState::PreEnabled => write!(f, "PRE_ENABLED"),
+        MasternodeState::Enabled => write!(f, "ENABLED"),
+        MasternodeState::PreResigned => write!(f, "PRE_RESIGNED"),
+        MasternodeState::Resigned => write!(f, "RESIGNED"),
+        MasternodeState::PreBanned => write!(f, "PRE_BANNED"),
+        MasternodeState::Banned => write!(f, "BANNED"),
+        MasternodeState::Unknown => write!(f, "UNKNOWN"),
+       }
+    }
+}
+
+#[derive(Serialize, Deserialize, Debug, Default, Clone)]
+pub struct MasternodeOwner {
+    pub address: String,
+}
+
+#[derive(Serialize, Deserialize, Debug, Default, Clone)]
+pub struct MasternodeOperator {
+    pub address: String,
+}
+
+#[derive(Serialize, Deserialize, Debug, Default, Clone)]
+pub struct MasternodeCreation {
+    pub height: i32,
+}
+
+#[derive(Serialize, Deserialize, Debug, Default, Clone)]
+pub struct MasternodeResign {
+    pub tx: String,
+    pub height: i32,
+}
+
+#[derive(Serialize, Deserialize, Debug, Default, Clone)]
+#[serde(rename_all = "camelCase")]
+pub struct MasternodeData {
+    pub id: String,
+    pub sort: String,
+    pub state: MasternodeState,
+    pub minted_blocks: i32,
+    pub owner: MasternodeOwner,
+    pub operator: MasternodeOperator,
+    pub creation: MasternodeCreation,
+    pub resign: Option<MasternodeResign>,
+    pub timelock: i32,
+}
+impl MasternodeData {
+    pub fn new(id: &str) -> Self {
+        Self {
+            id: id.repeat(64),
+            sort: id.repeat(72),
+            state: MasternodeState::Enabled,
+            minted_blocks: 2,
+            owner: MasternodeOwner {
+                address: id.repeat(34),
+            },
+            operator: MasternodeOperator {
+                address: id.repeat(34),
+            },
+            creation: MasternodeCreation {
+                height: 0
+            },
+            resign: None,
+            timelock: 0
+       }
+    }
+}
+
 #[derive(Serialize, Deserialize, Debug, Default)]
 #[serde(rename_all = "camelCase")]
 pub struct HistoryItem {