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Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
May 30, 2026

No incidents reported today.

May 29, 2026
Sui Mainnet Degraded Performance
Resolved - This incident has been resolved.
May 29, 16:18 UTC
Update - We are investigating increased error rates and service degradation on Sui Mainnet following a network incident impacting the Sui ecosystem. Our services are dependent on the underlying network, and we are actively monitoring recovery efforts from the Sui team.

According to the latest update from the Sui team, more than two-thirds of network stake has upgraded to the latest release.
We are continuing to monitor stability and will provide further updates as more information becomes available.

Upstream status: https://status.sui.io/incidents/mt1jzf986sfb
May 29, 16:09 UTC
Investigating - We are currently investigating degraded performance on Sui Mainnet. Customers might experience elevated error rates and latency.

We will provide updates as we learn more.
May 29, 15:34 UTC
[Network Wide] Flow Testnet Stall
Resolved - This incident has been resolved.
May 29, 01:28 UTC
Investigating - We are currently investigating this issue.
May 29, 00:51 UTC
May 28, 2026
Investigating - Sui Mainnet Degraded Performance
Resolved - this incident as been resolved
May 28, 22:02 UTC
Investigating - The Sui chain is currently stalled at block 280,692,037. This is a network-wide issue impacting multiple providers. Our team is actively monitoring and coordinating with the Sui team. We will provide updates as the situation develops.
May 28, 16:14 UTC
Base Mainnet Azul Upgrade
Completed - The scheduled maintenance has been completed.
May 28, 19:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 28, 18:00 UTC
Scheduled - On Thursday, May 28th at 18:00 UTC (Unix timestamp 1779991200), Base Mainnet will undergo the Azul upgrade.

This upgrade includes:
- Osaka support
- Simplified Flashblocks WebSocket format
- A new multi-proof system enabling faster withdrawals and a path toward stronger decentralization
- Support limited to Base Node (Reth) and Base Consensus clients only

Binary support will be restricted to just Base Node (Reth) and Base Consensus clients. Alchemy nodes will be migrated before activation.

We are not expecting any downtime.  Follow Base Network status updates at:
https://base-l2.statuspage.io/incidents/64vlxm4l3lb2
May 26, 22:12 UTC
Starknet Mainnet degraded performance
Resolved - This incident has been resolved.
May 28, 17:16 UTC
Investigating - We are currently investigating degraded performance on starknet mainnet
May 28, 16:27 UTC
Investigating - Ink Sepolia Safe and Finalized Block Degradation
Resolved - This incident has been resolved.
May 28, 11:31 UTC
Investigating - We are investigating reports of degraded performance on Ink Sepolia. The finalized and safe block tags are currently not progressing reliably, affecting requests that rely on those block parameters.

This appears to be a chain-wide issue. We will provide updates as more information becomes available.
May 28, 05:43 UTC
May 27, 2026

No incidents reported.

May 26, 2026
ZKSync Mainnet- Block Finalization Stalled
Resolved - This incident has been resolved.
May 26, 12:57 UTC
Investigating - We are currently investigating an issue affecting ZKSync Mainnet where block finalization has stalled. This appears to be an upstream issue with the ZKSync network. We are actively monitoring the situation and have engaged the ZKSync team. We will provide updates as the investigation progresses.
May 25, 08:30 UTC
May 25, 2026
May 24, 2026
[Network Wide] Corn Testnet
Resolved - Block production on Corn Testnet has resumed and the network is operating normally. The testnet experienced a chain stall from approximately 09:45 to 16:30 UTC on May 24, 2026.
May 24, 16:30 UTC
Investigating - We are aware that block production on Corn Testnet has stalled. Last block was produced was 5,648,881. Transactions are not being processed at this time.
May 24, 09:45 UTC
[Network Wide] Citrea Mainnet Block Production Halted
Resolved - Block production on Citrea Mainnet has resumed and the network is operating normally. Transactions are being processed as expected.

The root cause was a scheduled infrastructure scaling maintenance performed by the Citrea team from 17:00 to 17:31 UTC, which caused a brief sequencer interruption and halted block production - see all details in Citrea status page here: https://status.citrea.xyz/cmpji6ntw0ariqkpno7u1edxt
May 24, 15:42 UTC
Investigating - We are aware that block production on Citrea Mainnet has stalled and are actively investigating the root cause. Transactions are not being processed at this time. Last block produced: 7767200 (https://explorer.mainnet.citrea.xyz/block/7767200)
May 24, 15:37 UTC
May 23, 2026

No incidents reported.

May 22, 2026

No incidents reported.

May 21, 2026
Base Mainnet Azul Upgrade
Completed - The scheduled maintenance has been completed.
May 21, 18:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 21, 16:00 UTC
Update - We will be undergoing scheduled maintenance during this time.
May 20, 15:03 UTC
Scheduled - Base Mainnet will undergo the V1 network upgrade at the scheduled time

This upgrade includes:
- Osaka support
- Simplified Flashblocks WebSocket format
- A new multi-proof system enabling faster withdrawals and a path toward stronger decentralization
- Support limited to Base Node (Reth) and Base Consensus clients only

We are not expecting any downtime. Follow Base Network status https://base-l2.statuspage.io/

Additional Information:
https://specs.base.org/upgrades/azul/overview
May 12, 03:50 UTC
Polygon Mainnet Chicago Hardfork
Completed - The scheduled maintenance has been completed.
May 21, 16:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 21, 14:00 UTC
Update - We will be undergoing scheduled maintenance during this time.
May 20, 15:03 UTC
Update - Polygon Mainnet will undergo Chicago Hardfork at the scheduled time.

The HF updates gas pricing for selected EVM opcodes and precompiles. These changes improve gas-cost alignment with execution cost and help maintain network stability.

We are not expecting any downtime.

Additional Information:
https://forum.polygon.technology/t/bor-v2-8-0-and-erigon-v3-6-0/21875
May 18, 08:40 UTC
Scheduled - We will be undergoing scheduled maintenance during this time.
May 18, 08:36 UTC
Base Mainnet Webhook Delivery Delays
Resolved - Our system finished backfilling all events around May 21 14:40 UTC. Service has since returned to normal.
May 21, 14:40 UTC
Investigating - Between 05:00 - 07:00 UTC on May 21, 2026, Alchemy's Base Mainnet webhook delivery experienced delays. Customers may have received delayed webhook notifications during this time.
May 21, 05:15 UTC
Injective Testnet Planned Upgrade
Completed - The scheduled maintenance has been completed.
May 21, 14:27 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 21, 14:06 UTC
Update - We will be undergoing scheduled maintenance during this time.
May 20, 15:03 UTC
Scheduled - Scheduled maintenance for the Injective testnet chain upgrade on Thursday, May 21st, 2026. The upgrade will occur at block height 126,624,500 (estimated ~2:06 PM UTC). Expect a brief period of downtime as nodes complete the Cosmovisor upgrade process. Nodes have been pre-upgraded and are ready.
May 20, 15:00 UTC
May 20, 2026
[Network Wide] Arbitrum Mainnet & Arbitrum Based Rollups - Degraded Performance Across Multiple Regions
Resolved - The Arbitrum Mainnet degraded performance issue has been resolved!
May 20, 20:34 UTC
Monitoring - Arbitrum Mainnet nodes have stabilized. This was a network-wide issue affecting multiple providers, caused by instability with the Arbitrum relayer.

The Arbitrum team has addressed the issue on their end.

We are continuing to monitor but performance has returned to normal!
May 20, 20:20 UTC
Update - We are investigating an elevated rate of 503 and API errors affecting Arbitrum Mainnet.

This is a network wide incident and we're working closely with Arbitrum team to restore full service.

We will provide updates as more information becomes available!
May 20, 20:10 UTC
Investigating - We are currently investigating this issue.
May 20, 19:59 UTC
Polygon Amoy Testnet - Scheduled Load/Stress Testing
Completed - The scheduled maintenance has been completed.
May 20, 20:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 20, 19:00 UTC
Update - We will be undergoing scheduled maintenance during this time.
May 20, 18:15 UTC
Scheduled - Polygon Labs will be performing scheduled load/stress testing on the Amoy testnet on May 20, 2026 from 19:00-20:00 UTC. Increased network load is expected during this window.
May 20, 18:15 UTC
Ink Sepolia Safe/Finalized Block Heads Stalled
Resolved - This incident has been resolved.
May 20, 10:33 UTC
Monitoring - The Ink team has applied a fix, and we are monitoring the results.
May 20, 09:48 UTC
Investigating - We are investigating an issue for safe and finalized tags on Ink Sepolia, which returning stalled block heads. The "finalized" block is currently stalled at block 50232683. This appears to be a network-wide issue affecting other providers, not isolated to Alchemy. We are monitoring for updates from the Ink team and will provide further information as it becomes available.
May 20, 08:30 UTC
May 19, 2026
Sei Mainnet v6.5 Upgrade
Completed - The scheduled maintenance has been completed.
May 19, 21:45 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 19, 19:45 UTC
Scheduled - Sei Mainnet will undergo an upgrade at the scheduled time.

Sei has submitted a governance proposal for the v6.5 upgrade on pacific-1.

A short period of downtime is expected.

Additional Information: https://sei.explorers.guru/proposal/117
May 19, 08:49 UTC
May 18, 2026
[Network-Wide] Ethereum Sepolia Degraded Performance
Resolved - This incident has been resolved.
May 18, 23:12 UTC
Update - We are continuing to investigate this issue.
May 16, 01:36 UTC
Investigating - We are currently investigating degraded performance on Ethereum Sepolia. Block production has been intermittent, with the chain's head advancing unevenly.

This appears to be a network-wide issue. Alchemy's infrastructure is operating normally and we do not currently anticipate customer-facing impact.

We will continue to monitor and provide updates as we learn more.
May 16, 01:28 UTC
May 17, 2026

No incidents reported.

May 16, 2026
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