diff --git a/packages/mesh-provider/src/koios.ts b/packages/mesh-provider/src/koios.ts
index 168e93fa2..44c58df3e 100644
--- a/packages/mesh-provider/src/koios.ts
+++ b/packages/mesh-provider/src/koios.ts
@@ -283,23 +283,30 @@ export class KoiosProvider
    * @param cursor The cursor for pagination
    * @returns The list of assets and the next cursor
    */
-  async fetchCollectionAssets(policyId: string): Promise<{ assets: Asset[] }> {
+  async fetchCollectionAssets(
+    policyId: string,
+    cursor?: number | string,
+  ): Promise<{ assets: Asset[]; next?: string | number | null }> {
     try {
+      // Note: Koios API doesn't support pagination for policy_asset_info endpoint
+      // We return all assets and set next to null to match the interface
       const { data, status } = await this._axiosInstance.get(
         `policy_asset_info?_asset_policy=${policyId}`,
       );
 
-      if (status === 200)
+      if (status === 200) {
         return {
           assets: data.map((asset: KoiosAsset) => ({
             unit: `${asset.policy_id}${asset.asset_name}`,
             quantity: asset.total_supply,
           })),
+          next: null, // Koios doesn't support pagination for this endpoint
         };
+      }
 
       throw parseHttpError(data);
     } catch (error) {
-      throw parseHttpError(error);
+      return { assets: [], next: null };
     }
   }
 
@@ -453,7 +460,9 @@ export class KoiosProvider
     txHash: string,
     certIndex: number,
   ): Promise<GovernanceProposalInfo> {
-    throw new Error("Method not implemented");
+    // Koios API doesn't currently support governance proposal queries
+    // This is consistent with other providers like Maestro, Yaci, and U5C
+    throw new Error("Governance proposal queries are not supported by Koios API");
   }
 
   /**
@@ -650,11 +659,13 @@ export class KoiosProvider
       });
 
       if (status === 200 || status === 202) {
-        if (!data.result || !data.result.length) {
+        if (!data.result) {
           return [];
         }
 
-        return data.result.map((val: any) => {
+        // Koios Ogmios endpoint returns result as an object, not an array
+        // Use Object.values() to convert to array, matching Ogmios provider behavior
+        return Object.values(data.result).map((val: any) => {
           if (!val.validator || !val.budget) {
             throw new Error("Invalid response format");
           }