Alchemy: Starknet Mainnet block production stalled

What to do

Check whether you use Alchemy Starknet. Check your stack
Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.
Confirm your retries, queues and scheduled jobs caught up after the 22m it lasted.
Anything that failed between 2026-10-06 08:52 UTC and 2026-10-06 09:13 UTC may need a replay.
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https://down.guide/feed?provider=alchemy works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

investigatingOct 6, 2026, 8:52 AM UTC
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.
provider
resolvedOct 6, 2026, 9:13 AM UTC
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.
provider

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None so far.

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Is Alchemy still down?

No, this incident was resolved 2026-10-06 09:13 UTC. For Alchemy's live state, see https://down.guide/alchemy.

How long did it last?

22m, from 2026-10-06 08:52 UTC to 2026-10-06 09:13 UTC, by the times Alchemy posted.

What was affected?

Alchemy named Starknet.

What caused it?

Alchemy hasn't published a root cause. If it does, it shows here.

Where does this come from?

Alchemy's official status page, https://status.alchemy.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.