diff --git a/src/config/data/ccip/selectors.yml b/src/config/data/ccip/selectors.yml
index 943a855c5d5..e08c8f51610 100644
--- a/src/config/data/ccip/selectors.yml
+++ b/src/config/data/ccip/selectors.yml
@@ -1066,3 +1066,7 @@ selectors:
     selector: "1804312132722180201"
     name: "hemi-mainnet"
     network_type: mainnet
+  202601:
+    selector: "1091131740251125869"
+    name: "ethereum-testnet-sepolia-ronin-1"
+    network_type: testnet
diff --git a/src/lib/api/cacheHeaders.ts b/src/lib/api/cacheHeaders.ts
index 92312d1448a..9b7b6be9c52 100644
--- a/src/lib/api/cacheHeaders.ts
+++ b/src/lib/api/cacheHeaders.ts
@@ -1,13 +1,27 @@
 /**
- * Shared cache header configurations for API endpoints
+ * Shared cache and CORS header configurations for API endpoints
  *
  * Cache Strategy:
  * - 5-minute CDN cache (s-max-age=300)
  * - Stale-while-revalidate for graceful degradation
  * - CDN-specific headers for Vercel optimization
  * - No browser cache (CDN-only caching)
+ *
+ * CORS Policy:
+ * - Open access (Access-Control-Allow-Origin: *)
+ * - Public, read-only API designed for cross-origin consumption
  */
 
+/**
+ * CORS headers for cross-origin access
+ * Enables browser-based clients (dApps, scripts) to consume the API
+ */
+export const corsHeaders = {
+  "Access-Control-Allow-Origin": "*",
+  "Access-Control-Allow-Methods": "GET, OPTIONS",
+  "Access-Control-Allow-Headers": "Content-Type",
+}
+
 /**
  * Standard cache headers for all API endpoints
  * - CDN cache: 5 minutes
@@ -26,6 +40,7 @@ export const standardCacheHeaders = {
  */
 export const textPlainHeaders = {
   "Content-Type": "text/plain; charset=utf-8",
+  ...corsHeaders,
   ...standardCacheHeaders,
 }
 
@@ -35,6 +50,7 @@ export const textPlainHeaders = {
  */
 export const jsonHeaders = {
   "Content-Type": "application/json",
+  ...corsHeaders,
   ...standardCacheHeaders,
 }
 
@@ -44,4 +60,5 @@ export const jsonHeaders = {
  */
 export const commonHeaders = {
   "Content-Type": "application/json",
+  ...corsHeaders,
 }
diff --git a/src/lib/ccip/services/lane-data.ts b/src/lib/ccip/services/lane-data.ts
index a61316bc506..360173bb6b4 100644
--- a/src/lib/ccip/services/lane-data.ts
+++ b/src/lib/ccip/services/lane-data.ts
@@ -20,6 +20,7 @@ import {
   getChainTypeAndFamily,
   directoryToSupportedChain,
 } from "../../../features/utils/index.ts"
+import { getSelectorEntry } from "@config/data/ccip/selectors.ts"
 
 export const prerender = false
 
@@ -214,11 +215,16 @@ export class LaneDataService {
         return null
       }
 
+      // Resolve internalId from the selector YAML name (consistent with chains and tokens endpoints)
+      // Falls back to the RDD directory key if the selector entry is not found
+      const selectorEntry = getSelectorEntry(chainId, chainType)
+      const internalId = selectorEntry?.name ?? chainKey
+
       return {
         chainId,
         displayName,
         selector,
-        internalId: chainKey,
+        internalId,
         chainType,
         chainFamily,
       }