diff --git a/README.md b/README.md
index 77671e8..f26c79c 100644
--- a/README.md
+++ b/README.md
@@ -53,7 +53,7 @@ Bitcoin and Litecoin load balances through Esplora APIs (Blockstream, Mempool.sp
 | Base         | base-mainnet | ETH    | 8453     | Enabled |
 | Arbitrum One | arb1-mainnet | ETH    | 42161    | Enabled |
 
-Advertised EVM networks load balances through current public RPCs (PublicNode, DRPC, and official chain endpoints). Retired leftover hosts such as 1rpc.io/eth were removed. Earlier leftover moonriver.unitedbloc.com, Sepolia.org RPCs, zkevm.polygonscan.com, Cloudflare Ethereum, Ankr public RPC, and BlastAPI hops stay denylisted.
+Advertised EVM networks load balances through current public RPCs (PublicNode, DRPC, and official chain endpoints). Retired leftover hosts such as 1rpc.io/sepolia were removed. Earlier leftover 1rpc.io/eth, moonriver.unitedbloc.com, Sepolia.org RPCs, zkevm.polygonscan.com, Cloudflare Ethereum, Ankr public RPC, and BlastAPI hops stay denylisted.
 
 ### SVM Chains (Solana-like)
 
diff --git a/docs/ADDING_EVM_CHAIN.md b/docs/ADDING_EVM_CHAIN.md
index 0cef805..b10a70a 100644
--- a/docs/ADDING_EVM_CHAIN.md
+++ b/docs/ADDING_EVM_CHAIN.md
@@ -87,7 +87,8 @@ The runtime client:
 - Filters out deprecated chains, invalid RPC endpoints, and retired public hosts
   (MyCrypto, MaticVigil, Cloudflare Ethereum, Ankr public RPC, BlastAPI, leftover
   Sepolia.org RPCs, DNS-dead zkevm.polygonscan.com, leftover
-  moonriver.unitedbloc.com, leftover discontinued 1rpc.io/eth, and old
+  moonriver.unitedbloc.com, leftover discontinued 1rpc.io/eth, leftover
+  1rpc.io/sepolia (old public path; use public.1rpc.io/sepolia), and old
   Polygon/Fantom/Moonbeam gateways). See `src/lib/networks/evm-endpoints.ts`.
 
 ## Method 3: Manual Configuration (Legacy)
@@ -220,7 +221,9 @@ reintroduce MyCrypto, MaticVigil, Cloudflare Ethereum, Ankr public RPC,
 BlastAPI, leftover Sepolia.org RPCs (`rpc.sepolia.org` 404, `rpc2.sepolia.org`
 timeout), DNS-dead `zkevm.polygonscan.com`, leftover
 `moonriver.unitedbloc.com` (DNS-dead), leftover discontinued
-`1rpc.io/eth` (HTTP 410), or the old Polygon/Fantom/Moonbeam
+`1rpc.io/eth` (HTTP 410), leftover `1rpc.io/sepolia` (old public
+path; intermittent 403 after 1RPC moved public hops to
+`public.1rpc.io`), or the old Polygon/Fantom/Moonbeam
 gateways.
 
 ### Pre-bundled Chains
diff --git a/scripts/sync-evm-registry.ts b/scripts/sync-evm-registry.ts
index b895d28..f51fe56 100644
--- a/scripts/sync-evm-registry.ts
+++ b/scripts/sync-evm-registry.ts
@@ -49,6 +49,7 @@ const DEPRECATED_EVM_ENDPOINT_HOSTS = [
   'rpc2.sepolia.org',
   'zkevm.polygonscan.com',
   '1rpc.io/eth',
+  'https://1rpc.io/sepolia',
 ] as const;
 
 const CHAINS_JSON_URL = 'https://chainid.network/chains.json';
diff --git a/src/lib/networks/evm-endpoints.ts b/src/lib/networks/evm-endpoints.ts
index a8c30f5..caefe3a 100644
--- a/src/lib/networks/evm-endpoints.ts
+++ b/src/lib/networks/evm-endpoints.ts
@@ -10,8 +10,10 @@
  * Leftover Moonriver UnitedBloc then lingered after Moonbeam UnitedBloc
  * was denylisted: moonriver.unitedbloc.com no longer resolves. Leftover
  * 1rpc.io/eth then lingered after 1RPC discontinued that Ethereum hop
- * (HTTP 410; other 1RPC paths such as Sepolia still answer). Keep
- * those hosts out of advertised lists so the first hop can succeed.
+ * (HTTP 410). Leftover 1rpc.io/sepolia then lingered after 1RPC moved
+ * public hops to public.1rpc.io (old 1rpc.io/sepolia now 403s
+ * intermittently; public.1rpc.io/sepolia stays public). Keep those
+ * hosts out of advertised lists so the first hop can succeed.
  */
 
 export const DEPRECATED_EVM_ENDPOINT_HOSTS = [
@@ -41,6 +43,7 @@ export const DEPRECATED_EVM_ENDPOINT_HOSTS = [
   'rpc2.sepolia.org',
   'zkevm.polygonscan.com',
   '1rpc.io/eth',
+  'https://1rpc.io/sepolia',
 ] as const;
 
 export function evmEndpointHaystack(rpcUrls: readonly string[], explorerUrl?: string): string {
diff --git a/src/lib/networks/evm-registry.ts b/src/lib/networks/evm-registry.ts
index 452c498..731a1cd 100644
--- a/src/lib/networks/evm-registry.ts
+++ b/src/lib/networks/evm-registry.ts
@@ -16,6 +16,8 @@
  * moonriver.unitedbloc.com stopped resolving.
  * Leftover 1rpc.io/eth hop refreshed 2026-09-20 after 1RPC
  * discontinued that Ethereum endpoint (HTTP 410).
+ * Leftover 1rpc.io/sepolia hop refreshed 2026-09-20 after 1RPC
+ * moved public hops to public.1rpc.io (old path 403s intermittently).
  */
 
 import { EvmNetworkConfig } from './types';
@@ -665,11 +667,13 @@ export const EVM_REGISTRY_CHAINS: EvmRegistryConfig[] = [
     chainId: 11155111,
     rpcUrls: [
       // sepolia.org discontinued its RPCs (rpc.sepolia.org 404,
-      // rpc2.sepolia.org times out). PublicNode, Tenderly, 1RPC, and
+      // rpc2.sepolia.org times out). Leftover 1rpc.io/sepolia is the
+      // old public path (intermittent 403 after 1RPC moved public hops
+      // to public.1rpc.io). PublicNode, Tenderly, public.1rpc.io, and
       // EthPandaOps remain public.
       'https://ethereum-sepolia-rpc.publicnode.com',
       'https://sepolia.gateway.tenderly.co',
-      'https://1rpc.io/sepolia',
+      'https://public.1rpc.io/sepolia',
       'https://rpc.sepolia.ethpandaops.io'
     ],
     nativeCurrency: {
diff --git a/src/lib/networks/supported-catalog.ts b/src/lib/networks/supported-catalog.ts
index b8e4690..b6708c6 100644
--- a/src/lib/networks/supported-catalog.ts
+++ b/src/lib/networks/supported-catalog.ts
@@ -4,7 +4,7 @@
  * The live registry can include additional auto-synced chains. This list is the
  * curated set shown in Settings and kept in sync with README.md.
  *
- * Last reviewed: 2026-09-20 (leftover Ethereum 1RPC / Injective Polkachu refresh).
+ * Last reviewed: 2026-09-20 (leftover Sepolia 1RPC public hop refresh).
  */
 
 export { DEPRECATED_SVM_ENDPOINT_HOSTS } from './svm-endpoints';
@@ -70,7 +70,7 @@ export function getSupportedNetworkFamilySummary(family: SupportedNetworkFamily)
     case 'utxo':
       return 'Bitcoin and Litecoin can load balances today. Other Bitcoin-like networks still show your address. Explorer links use current hosts (CipherScan, Ravencoin Explorer, OKLink, Flux Blockbook); retired sites such as dogechain.info, explorer.runonflux.io, and explorer.nosocoin.com were removed.';
     case 'evm':
-      return 'Ethereum and compatible networks load balances through current public RPCs (PublicNode, DRPC, and official chain endpoints). Retired leftover hosts such as 1rpc.io/eth were removed. Earlier leftover moonriver.unitedbloc.com, Sepolia.org RPCs, zkevm.polygonscan.com, Cloudflare Ethereum, Ankr public RPC, and BlastAPI hops stay denylisted.';
+      return 'Ethereum and compatible networks load balances through current public RPCs (PublicNode, DRPC, and official chain endpoints). Retired leftover hosts such as 1rpc.io/sepolia were removed. Earlier leftover 1rpc.io/eth, moonriver.unitedbloc.com, Sepolia.org RPCs, zkevm.polygonscan.com, Cloudflare Ethereum, Ankr public RPC, and BlastAPI hops stay denylisted.';
     case 'svm':
       return 'Solana mainnet balances load through current public RPCs (official Solana and PublicNode). Retired or key-gated hosts such as Ankr public RPC and Solana dRPC were removed.';
     default: {
diff --git a/src/web/main.tsx b/src/web/main.tsx
index c6a6867..2a6cf9d 100644
--- a/src/web/main.tsx
+++ b/src/web/main.tsx
@@ -111,7 +111,7 @@ const WebAppFrame: React.FC<{ children: React.ReactNode }> = ({ children }) => (
       <Text fontSize="xs" color="gray.400">
         Vidulum is a cross-chain wallet for Cosmos, Bitcoin-like, EVM, and Solana networks. Use
         Vidulum for IBC transfers, multi-chain swaps, and asset management across supported
-        networks. Leftover Ethereum 1RPC and Injective Polkachu hosts last checked in September 2026.
+        networks. Leftover Sepolia 1RPC hosts last checked in September 2026.
       </Text>
     </Box>
   </Flex>
diff --git a/tests/lib/networks/evm-endpoints.test.ts b/tests/lib/networks/evm-endpoints.test.ts
index a869619..e56ae3e 100644
--- a/tests/lib/networks/evm-endpoints.test.ts
+++ b/tests/lib/networks/evm-endpoints.test.ts
@@ -7,8 +7,9 @@
  * (404 / timeout) and the sunset zkEVM explorer still sat in side-chain
  * lists. Leftover Moonriver UnitedBloc then lingered after Moonbeam
  * UnitedBloc was denylisted. Leftover 1rpc.io/eth then lingered after
- * 1RPC discontinued that Ethereum hop (HTTP 410). This keeps EVM RPC
- * and explorer lists honest.
+ * 1RPC discontinued that Ethereum hop (HTTP 410). Leftover
+ * 1rpc.io/sepolia then lingered after 1RPC moved public hops to
+ * public.1rpc.io. This keeps EVM RPC and explorer lists honest.
  */
 
 import {
@@ -129,10 +130,11 @@ describe('EVM endpoint freshness', () => {
     expect(sepolia?.rpcUrls).toEqual([
       'https://ethereum-sepolia-rpc.publicnode.com',
       'https://sepolia.gateway.tenderly.co',
-      'https://1rpc.io/sepolia',
+      'https://public.1rpc.io/sepolia',
       'https://rpc.sepolia.ethpandaops.io',
     ]);
     expect(sepolia?.rpcUrls.join(' ')).not.toMatch(/rpc\.sepolia\.org|rpc2\.sepolia\.org/);
+    expect(sepolia?.rpcUrls.join(' ')).not.toContain('https://1rpc.io/sepolia');
     expect(sepolia?.explorerUrl).toBe('https://sepolia.etherscan.io');
   });
 
@@ -176,7 +178,8 @@ describe('EVM endpoint freshness', () => {
     expect(usesDeprecatedEvmHost('https://zkevm.polygonscan.com')).toBe(true);
     expect(usesDeprecatedEvmHost('https://moonriver.unitedbloc.com')).toBe(true);
     expect(usesDeprecatedEvmHost('https://1rpc.io/eth')).toBe(true);
-    expect(usesDeprecatedEvmHost('https://1rpc.io/sepolia')).toBe(false);
+    expect(usesDeprecatedEvmHost('https://1rpc.io/sepolia')).toBe(true);
+    expect(usesDeprecatedEvmHost('https://public.1rpc.io/sepolia')).toBe(false);
     expect(usesDeprecatedEvmHost('https://ethereum-rpc.publicnode.com')).toBe(false);
     expect(usesDeprecatedEvmHost('https://rpc.sepolia.ethpandaops.io')).toBe(false);
 
@@ -191,9 +194,15 @@ describe('EVM endpoint freshness', () => {
         'https://rpc.ankr.com/eth',
         'https://rpc.sepolia.org',
         'https://1rpc.io/eth',
+        'https://1rpc.io/sepolia',
         'https://eth.drpc.org',
+        'https://public.1rpc.io/sepolia',
       ])
-    ).toEqual(['https://ethereum-rpc.publicnode.com', 'https://eth.drpc.org']);
+    ).toEqual([
+      'https://ethereum-rpc.publicnode.com',
+      'https://eth.drpc.org',
+      'https://public.1rpc.io/sepolia',
+    ]);
 
     expect(
       selectPublicEvmExplorer([
diff --git a/tests/lib/networks/supported-catalog.test.ts b/tests/lib/networks/supported-catalog.test.ts
index 849f94a..05e84db 100644
--- a/tests/lib/networks/supported-catalog.test.ts
+++ b/tests/lib/networks/supported-catalog.test.ts
@@ -59,10 +59,10 @@ describe('Supported network catalog', () => {
       /current public RPCs \(PublicNode, DRPC/
     );
     expect(getSupportedNetworkFamilySummary('evm')).toMatch(
-      /1rpc\.io\/eth/
+      /1rpc\.io\/sepolia/
     );
     expect(getSupportedNetworkFamilySummary('evm')).toMatch(
-      /moonriver\.unitedbloc\.com, Sepolia\.org RPCs, zkevm\.polygonscan\.com/
+      /1rpc\.io\/eth, moonriver\.unitedbloc\.com, Sepolia\.org RPCs, zkevm\.polygonscan\.com/
     );
     expect(getSupportedNetworkFamilySummary('cosmos')).toMatch(
       /current public RPC and LCD/
diff --git a/tests/popup/SupportedNetworksPanel.test.tsx b/tests/popup/SupportedNetworksPanel.test.tsx
index 7a026f5..ccc13a1 100644
--- a/tests/popup/SupportedNetworksPanel.test.tsx
+++ b/tests/popup/SupportedNetworksPanel.test.tsx
@@ -56,8 +56,8 @@ describe('SupportedNetworksPanel', () => {
     expect(screen.getByText(/Ethereum, OP Mainnet, BNB Chain, Polygon, Base, Arbitrum One/)).toBeInTheDocument();
     expect(screen.getByText(/Ethereum and compatible networks load balances through current public RPCs/)).toBeInTheDocument();
     expect(screen.getByText(/PublicNode, DRPC, and official chain endpoints/)).toBeInTheDocument();
-    expect(screen.getByText(/1rpc\.io\/eth/)).toBeInTheDocument();
-    expect(screen.getByText(/moonriver\.unitedbloc\.com, Sepolia\.org RPCs, zkevm\.polygonscan\.com/)).toBeInTheDocument();
+    expect(screen.getByText(/1rpc\.io\/sepolia/)).toBeInTheDocument();
+    expect(screen.getByText(/1rpc\.io\/eth, moonriver\.unitedbloc\.com, Sepolia\.org RPCs, zkevm\.polygonscan\.com/)).toBeInTheDocument();
     expect(screen.getByText(/^Solana$/)).toBeInTheDocument();
     expect(screen.getByText(/official Solana and PublicNode/)).toBeInTheDocument();
     expect(screen.getByText(/Ankr public RPC and Solana dRPC/)).toBeInTheDocument();