Anime Sepolia network stall
Investigating - We are observing a network-wide stall on Anime Sepolia. The chain has stopped advancing and is stuck at block 1823674, produced at 08:05 UTC, roughly 50 minutes ago. This affects all requests that depend on recent chain state, including latest block reads, new transaction confirmations, and real-time subscriptions. Historical data remains available.

This is not specific to Alchemy. Other independent providers on Anime Sepolia are returning the same stalled block, which indicates the issue originates upstream at the network level rather than within our infrastructure.

We have reached out to the network team and are monitoring block production closely. We will share an update as soon as the chain resumes advancing or we have more information. Other networks are unaffected.
Oct 12, 2026 - 08:58 UTC
Ethereum Operational
Solana Operational
Abstract Operational
ADI Operational
Animechain Operational
Arbitrum Operational
ARC Operational
ApeChain Operational
Aptos Operational
Astar Operational
Avalanche C Chain Operational
Base Operational
Berachain Operational
Bitcoin Operational
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Humanity Operational
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World Chain Operational
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Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance

Oct 12, 2026

Unresolved incident: Anime Sepolia network stall.

Oct 11, 2026

No incidents reported.

Oct 10, 2026

No incidents reported.

Oct 9, 2026

Abstract Mainnet - Elevated Error Rates
Resolved - This incident has been resolved.
Oct 9, 11:30 UTC
Investigating - A subset of requests on Abstract Mainnet are experiencing elevated error rates.
Oct 9, 11:07 UTC

Oct 8, 2026

Sei Mainnet Consensus Upgrade
Completed - The scheduled maintenance has been completed.
Oct 8, 17:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 8, 15:45 UTC
Scheduled - Sei Mainnet will undergo a mandatory consensus upgrade at block 236450000, currently estimated around 16:30 UTC on October 8, 2026. As the upgrade is triggered by block height, the exact time may vary and could occur earlier or later than estimated. Block production is expected to pause briefly during the upgrade, typically for around 5–10 minutes.
Oct 5, 11:48 UTC

Oct 7, 2026

Ronin Mainnet - Post Hardfork Stall
Resolved - This incident has been resolved.
Oct 7, 16:50 UTC
Investigating - We’re investigating issues affecting our Ronin Mainnet nodes following the hardfork.
Oct 7, 16:38 UTC

Oct 6, 2026

Ethereum Sepolia Hard Fork Upgrade
Completed - The scheduled maintenance has been completed.
Oct 6, 14:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 6, 13:30 UTC
Scheduled - Ethereum Sepolia will undergo a scheduled hard fork on October 6, 2026 at 13:53:36 UTC. Our nodes have been upgraded ahead of the fork and no downtime is expected.
Oct 5, 12:01 UTC
Starknet Mainnet block production stalled
Resolved - Starknet Mainnet block production has resumed and Alchemy Starknet endpoints are serving current chain data as expected. Applications that cached stale state during the stall should recover on their next refresh.

Thank you for your patience while the network recovered.
Oct 6, 09:13 UTC
Investigating - Starknet Mainnet is currently not producing new blocks following a recent network-wide upgrade.

This is a chain-level condition affecting the Starknet network as a whole and is not isolated to Alchemy infrastructure.

We are actively coordinating with the Starknet team on mitigation steps and will share an update as soon as we have more information.
Oct 6, 08:52 UTC

Oct 5, 2026

No incidents reported.

Oct 4, 2026

No incidents reported.

Oct 3, 2026

No incidents reported.

Oct 2, 2026

No incidents reported.

Oct 1, 2026

No incidents reported.

Sep 30, 2026

US East Stalled Block Number
Resolved - We observed chain stalls across our networks affecting requests in the USE region. This occurred between the 13:12:00 UTC to 13:30:15 UTC, and has been resolved.
Sep 30, 13:30 UTC
Monitoring - A fix has been implemented and we are monitoring the results.
Sep 30, 13:12 UTC

Sep 29, 2026

Sei Testnet -- Scheduled Network Upgrade
Completed - The scheduled maintenance has been completed.
Sep 29, 16:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 29, 15:53 UTC
Update - The upgrade will activate at target block 273,966,500, so the current timing is an estimate.
Sep 29, 13:55 UTC
Scheduled - Sei testnet is undergoing a scheduled network upgrade. During the upgrade we expect brief downtime of up to a few minutes on Sei testnet endpoints, with possible elevated error rates or latency around the transition. Sei mainnet is not affected. No action is required from customers. We will post an update once the upgrade is complete.
Sep 29, 13:53 UTC

Sep 28, 2026

No incidents reported.

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