Base Sepolia public RPC delayed responses
Monitoring - A fix has been implemented and we are monitoring the results.
Oct 23, 2026 - 05:04 UTC
Identified - The issue has been identified and a fix is being implemented.
Oct 23, 2026 - 04:58 UTC
Uptime over the past 90 days. View historical uptime.
Mainnet Operational
Public RPC API Operational
Deposits Operational
Withdrawals Operational
Batch submission Operational
Block production Operational
Flashblocks Operational
Transaction pool Operational
Snapshots Operational
Client Software Operational
Testnet Operational
Public RPC API Operational
Deposits Operational
Withdrawals Operational
Batch submission Operational
Block production Operational
Flashblocks Operational
Transaction pool Operational
Snapshots Operational
Client Software Operational
Bridge (Mainnet) Operational
Bridge (Testnet) Operational
Website Operational
Homepage Operational
Docs Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.

No incidents or maintenance related to this downtime.

Oct 23, 2026

Unresolved incident: Base Sepolia public RPC delayed responses.

Oct 22, 2026

No incidents reported.

Oct 21, 2026

Sepolia Testnet: Base Denim Upgrade - October 21st
Completed - The Denim upgrade has activated on Base Sepolia, and the scheduled maintenance is complete.
For details about the upgrade, please see https://docs.base.org/upgrades/denim/overview.
Oct 21, 18:50 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 21, 18:00 UTC
Scheduled - On Wednesday, October 21st at 18:00 UTC (Unix timestamp 1792605600), the Base Sepolia Testnet will undergo the Denim upgrade. Base Sepolia is expected to remain operational during the upgrade window.

Operators of Base Sepolia Testnet nodes must upgrade to the 1.5.0, or greater, release of the https://github.com/base/base software (https://github.com/base/base/releases/tag/v1.5.0).

Please note: operators must remove --enable-experimental-validity-transactions from their base-reth-node command before upgrading, or the node will fail to start.

For more information on the Denim upgrade, please visit our docs: https://docs.base.org/upgrades/denim/overview.
Oct 19, 13:52 UTC

Oct 20, 2026

No incidents reported.

Oct 19, 2026

No incidents reported.

Oct 18, 2026

No incidents reported.

Oct 17, 2026

No incidents reported.

Oct 16, 2026

No incidents reported.

Oct 15, 2026

No incidents reported.

Oct 14, 2026

No incidents reported.

Oct 13, 2026

No incidents reported.

Oct 12, 2026

No incidents reported.

Oct 11, 2026

No incidents reported.

Oct 10, 2026

No incidents reported.

Oct 9, 2026

Base Mainnet proposals halted
Resolved - This incident has been resolved.
Oct 9, 19:15 UTC
Monitoring - We've identified the issue and proposals have resumed.
Oct 9, 14:21 UTC
Update - We are continuing to investigate this issue.
Oct 9, 13:48 UTC
Investigating - The team is investigating the proposal stall. This will slow down in-flight withdrawals.
Oct 9, 13:48 UTC
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