Alchemy Outage History

118 incidents recorded over the last 365 days, 99 of them resolved. Durations are measured from when PulsAPI first saw the problem to when it cleared, which is usually longer than the vendor's own figure.

Live Alchemy status100.00% uptime history

Every Recorded Alchemy Incident

Alchemy incidents, newest first, with date, duration and status.
DateIncidentDurationStatus
Nov 5, 2026Base Mainnet Denim UpgradeBase Mainnet will undergo the scheduled Denim hardfork on Thursday, November 5 at 18:00 UTC. Changes include: • Block time reduced from 2s to 200ms • Flashblocks removed • B20 token standard improvements • Additional…2h 0mScheduled
Nov 4, 2026RPC and APIs to Elysium temporarily disabledWe received confirmation from the Elysium team and have re-enabled access to RPC and Data APIs on Elysium mainnet.2h 27mResolved
Nov 3, 2026Starknet Mainnet - elevated latency and errors in US East regionThis incident has been resolved.11h 33mResolved
Oct 31, 2026Stable Mainnet v1.9.0 UpgradeStable Mainnet will be upgraded to v1.9.0 on October 31 at approximately 09:00 UTC. Brief downtime might occur during the upgrade.1h 30mScheduled
Oct 27, 2026Monad Mainnet - Degraded archive state requestsThis incident has been resolved.55h 38mResolved
Oct 27, 2026Base Mainnet - Elevated eth_getLogs LatencyThis incident has been resolved.1h 19mResolved
Oct 26, 2026Base Mainnet - Elevated eth_getLogs LatencyThis incident has been resolved.1h 26mResolved
Oct 22, 2026BNB Smart Chain: Elevated Latency and Intermittent Errors on Archive RequestsThis incident has been resolved. Latency and error rates for BNB Smart Chain have remained normal. We will continue to monitor.6h 27mResolved
Oct 22, 2026Cronos Mainnet UpgradeScheduled maintenance is currently in progress. We will provide updates as necessary.30 minScheduled
Oct 16, 2026Base Mainnet - Increased latency in EU Central regionThis incident has been resolved.22 minResolved
Oct 14, 2026Superseed Mainnet - Chain StallThis incident has been resolved.2h 45mResolved
Oct 13, 2026Base Mainnet - Increased Bundler ErrorsThis incident has been resolved.2h 24mResolved
Oct 13, 2026Base Mainnet - Increased Bundler ErrorsA subset of Bundler requests on Base Mainnet are seeing increased errors.0 minResolved
Oct 13, 2026US West Region - Degraded PerformanceThis incident has been resolved.2h 56mResolved
Oct 12, 2026Robinhood Mainnet - eth_sendRawTransaction Degraded PerformanceThis incident has been resolved.30 minResolved
Oct 12, 2026Anime Sepolia network stallAnime Sepolia has resumed producing blocks and the chain has advanced well beyond the block it was stuck at. Requests depending on recent chain state, including latest block reads and new transaction confirmations, are…30h 42mResolved
Oct 9, 2026Abstract Mainnet - Elevated Error RatesThis incident has been resolved.-15 minResolved
Oct 8, 2026Sei Mainnet Consensus UpgradeThe scheduled maintenance has been completed.1h 15mScheduled
Oct 7, 2026Ronin Mainnet - Post Hardfork StallThis incident has been resolved.12 minResolved
Oct 6, 2026Ethereum Sepolia Hard Fork UpgradeThe scheduled maintenance has been completed.1h 0mScheduled
Oct 6, 2026Starknet Mainnet block production stalledStarknet 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…21 minResolved
Sep 30, 2026US East Stalled Block NumberWe 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.-2 minResolved
Sep 29, 2026Sei Testnet -- Scheduled Network UpgradeThe scheduled maintenance has been completed.30 minScheduled
Sep 23, 2026Finalized Block Stall on Unichain Mainnet in USEThis incident has been resolved.1h 20mResolved
Sep 23, 2026US West Scheduled Infrastructure MaintenanceMaintenance is complete and traffic has been restored to US West.4h 0mScheduled
Sep 22, 2026Increased error rates and latency in US West regionThis incident has been resolved.58 minResolved
Sep 21, 2026Arc Testnet - Increased LatencyA subset of requests on Arc Testnet experienced increased latency starting ~17:35 UTC. This incident has been resolved.-330 minResolved
Sep 21, 2026Solana Mainnet - Custom Method MaintenanceThe scheduled maintenance has been completed.4h 0mScheduled
Sep 11, 2026Elevated Latency for Solana MainnetThis incident has been resolved.1h 21mResolved
Sep 11, 2026Solana Mainnet - Increased Latency for getSignaturesForAddressA subset of getSignaturesForAddress requests on Solana Mainnet experienced increased latency between 08:20 and 09:30 UTC and has since recovered.0 minResolved
Sep 8, 2026Robinhood Mainnet - Increased Latency in APACThis incident has been resolved.2h 59mResolved
Sep 4, 2026Elevated Latency and Block LagThe upstream feed relay instabilities have been resolved, and latency and block lag have returned to normal.1h 5mResolved
Sep 4, 2026Robinhood Mainnet - Elevated latencies and Increased Request FailuresService is now fully recovered, nodes are caught up with the chain and error rates are back to baseline! Instability upstream on Robinhood chain was concluded as a root cause.41 minResolved
Sep 3, 2026Elevated API Errors Across Multiple NetworksThe incident has been resolved. We are continuing to monitor the situation.1h 12mResolved
Sep 3, 2026Increased latency for wallet_getCallsStatus across networksThis incident has been resolved.2 minResolved
Sep 2, 2026Scheduled Maintenance — Monad MainnetThe scheduled maintenance has been completed.30 minScheduled
Aug 31, 2026Elevated API Errors and LatencyAll networks latencies are back to baseline.54 minResolved
Aug 31, 2026[Network Wide] Cronos Mainnet HaltedIncident is resolved and blocks are being produced again - confirmed by Cronost team: https://x.com/CronosNetwork/status/20944178323943014991h 23mResolved
Aug 29, 2026Ethereum Mainnet - Elevated Data API LatenciesThe elevated latencies affecting Ethereum Mainnet Data APIs have been resolved.1h 31mResolved
Aug 27, 2026Robinhood Mainnet - Increased Data API Latency and Error RatesThis incident has been resolved.26 minResolved
Aug 27, 2026X Layer Mainnet - Delayed WebSocket Event Delivery in US EastThis incident has been resolved! WebSocket subscription delivery for X Layer Mainnet in our US East region has returned to normal. HTTP requests were not affected at any point during this incident7h 22mResolved
Aug 26, 2026Multiple Networks - Increased Latencies (Token/Portfolio API)This incident has been resolved. Between approximately 21:58 UTC and 22:12 UTC, some API requests across multiple networks experienced elevated latency, primarily affecting Token API and Portfolio API balance…14 minResolved
Aug 26, 2026[Network Wide] Xdc Testnet Chain StalledThis incident has been resolved.9h 28mResolved
Aug 25, 2026[Network Wide] Zetachain Mainnet Block Production StalledThis incident has been resolved.4h 59mResolved
Aug 24, 2026Unichain Mainnet - safe/finalized head stalled in use1A subset of nodes serving Unichain Mainnet in our US East (use1) region experienced stalled safe/finalized block tracking, causing delayed safe/finalized block data for requests routed through that region. The latest…6h 13mResolved
Aug 23, 2026BNB Smart Chain Mainnet - Intermittent Elevated LatenciesResolved - Elevated latency on BNB Smart Chain Mainnet JSON-RPC requests has been fully mitigated. All methods are performing within normal latency ranges!48h 5mResolved
Aug 22, 2026Elevated Latency for Robinhood MainnetLatency has returned to normal for Robinhood Mainnet. We will continue to monitor the service.1h 10mResolved
Aug 20, 2026Polygon Amoy Testnet - Scheduled Load TestThe scheduled maintenance has been completed.4h 0mScheduled
Aug 20, 2026Polygon Mainnet - Elevated eth_getLogs LatencyThis incident has been resolved.1h 7mResolved
Aug 19, 2026Elevated latency on BNB Smart ChainThis incident has been resolved.22h 20mResolved
Aug 19, 2026Solana Streaming (WebSocket & gRPC) Unavailable in Multiple RegionsThis incident has been resolved.44 minResolved
Aug 17, 2026Polygon Mainnet - Delays propagating transactionsThis incident has been resolved.12 minResolved
Aug 13, 2026Polygon Mainnet: Trace API methods unavailableThis incident has been resolved.48 minResolved
Aug 13, 2026Elevated Latency on Injective MainnetThis incident has been resolved. Injective Mainnet performance has returned to normal.30h 24mResolved
Aug 12, 2026Shape Mainnet - Increased LatencyA subset of requests on Shape Mainnet are experiencing increased latency.1h 34mResolved
Aug 12, 2026Network connectivity issues affecting AP regionThis incident has been resolved.3h 18mResolved
Aug 12, 2026Solana Mainnet global network instabilityThe issue has been resolved. Solana Mainnet service has recovered in Singapore and Tokyo, and we are monitoring the situation closely.5 minResolved
Aug 12, 2026Elevated Latency on Robinhood MainnetThis incident has been resolved.1h 13mResolved
Aug 10, 2026Story Mainnet: Network-wide Block Production StallThis incident has been resolved.4h 41mResolved
Aug 6, 2026Polygon Amoy Scheduled Load TestThe scheduled maintenance has been completed.4h 41mScheduled
Aug 6, 2026[Network-Wide] - Base Sepolia StallThis incident has been resolved.3 minResolved
Aug 5, 2026Multiple Networks - Increased eth_getUserOperationReceipt LatencyBetween 17:22 and 17:35 UTC on August 5, a subset of eth_getUserOperationReceipt requests across multiple networks experienced increased latencies. This incident has been resolved.0 minResolved
Aug 4, 2026SEI Mainnet v6.6 UpgradeThe scheduled maintenance has been completed.3h 0mScheduled
Jul 31, 2026Hyperliquid Mainnet - Degraded Performance in Asia Pacific RegionThis incident has been resolved.53 minResolved
Jul 31, 2026Monad Mainnet - Increased eth_getLogs Latency in EU Central RegionThis incident has been resolved.1h 4mResolved
Jul 31, 2026Degraded Performance on Sui MainnetThis incident has been resolved.1h 41mResolved
Jul 30, 2026Robinhood Mainnet - Elevated LatencyBetween 22:35 and 22:55 UTC on July 30, a subset of requests on Robinhood Mainnet experienced elevated latency. This incident has been resolved.0 minResolved
Jul 30, 2026Hyperliquid Elevated Latency Europe RegionThis incident has been resolved.1h 5mResolved
Jul 28, 2026SEI Testnet v6.6 UpgradeThe scheduled maintenance has been completed.1h 0mScheduled
Jul 28, 2026Elevated Hyperliquid Latency in US East RegionBetween 13:30 UTC on July 28 and 08:00 UTC on July 29, HYPERLIQUID\_MAINNET requests served from us-east experienced elevated latency, and `eth_sendRawTransaction` returned a high rate of errors. Read methods remained…17h 54mResolved
Jul 28, 2026[Network-Wide] Base Mainnet Safe Head DelayedThis is resolved. Base Mainnet's Safe head has caught up and data batching to Ethereum L1 is back to normal. Block production was unaffected throughout. See the Base status page for their full update…2h 6mResolved
Jul 27, 2026Polygon Amoy Testnet - Scheduled Load TestingThe scheduled maintenance has been completed.10h 0mScheduled
Jul 27, 2026Stable Mainnet - Degraded PerformanceNodes have recovered and services are healthy again.3h 11mResolved
Jul 24, 2026Cronos Mainnet - Degraded performanceNodes have been rescyned with stable binary and services are back to healthy.3h 12mResolved
Jul 23, 2026Robinhood Mainnet - Elevated Latency in Asia PacificThis incident has been resolved.19h 57mResolved
Jul 23, 2026Stable Mainnet - Degraded PerformanceThis incident has been resolved.26h 26mResolved
Jul 22, 2026[Network-Wide] Multiple Networks StallResolved: All impacted networks, including Mode Sepolia (testnet), have fully recovered and caught up. This incident is now resolved.34 minResolved
Jul 22, 2026WebSocket Connectivity Issue in US West RegionTraffic has been fully restored to the US West region. This incident is now resolved!5h 9mResolved
Jul 22, 2026BNB Smart Chain Mainnet - Degraded PerformanceWe have confirmed full recovery across our BNB Smart Chain Mainnet infrastructure. All nodes are healthy and serving traffic normally, with response times and error rates back to baseline. This incident is now resolved…6h 57mResolved
Jul 21, 2026Soneium Mainnet Service DegradationThis incident has been resolved.1h 52mResolved
Jul 18, 2026Resolved: Elevated latency on Polygon MainnetBetween approximately 23:20 UTC on July 17 and 03:30 UTC on July 18, some Polygon Mainnet requests experienced slower than normal response times, mainly for log queries. The issue was limited to the us-east-1…-782 minResolved
Jul 16, 2026Zora Sepolia Degraded PerformanceThis incident has been resolved.31 minResolved
Jul 15, 2026[Network-Wide] Abstract Mainnet Safe Head StallThis incident has been resolved.4h 52mResolved
Jul 15, 2026Degraded eth_getLogs across multiple networksThis incident has been resolved.14 minResolved
Jul 15, 2026Degraded performance on Solana mainnetThis incident has been resolved.0 minResolved
Jul 15, 2026Elevated Latency on Tempo ModeratoThis incident has been resolved.3h 33mResolved
Jul 14, 2026Degraded Performance on Cronos MainnetThis incident has been resolved.1h 3mResolved
Jul 13, 2026Robinhood Mainnet - Delayed User Operation Inclusion TimesThis incident has been resolved.4 minResolved
Jul 10, 2026Degraded Performance for Data APIsThis incident has been resolved.44 minResolved
Jul 10, 2026Increased 5xxs in US East Region on Robinhood MainnetThis incident has been resolved.-267 minResolved
Jul 8, 2026Optimism Mainnet Data API DegradationThis incident has been resolved.29 minResolved
Jul 8, 2026OP Stack Chains Karst Hard ForkThe scheduled maintenance has been completed.2h 0mScheduled
Jul 7, 2026[Network-Wide] Optimism Mainnet StalledThis incident has been resolved.23 minResolved
Jul 3, 2026Investigating - Degraded Data API EndpointsThis incident has been resolved.8h 47mResolved
Jul 2, 2026Solana Mainnet Streaming (gRPC + WS) UpgradeThe scheduled maintenance has been completed.15 minScheduled
Jul 2, 2026Stalled Block Production on ZKsync MainnetThe incident has been resolved.1h 47mResolved
Jul 2, 2026Solana Mainnet Streaming (gRPC + WS) Upgrade - USE, EUC, APSEThe scheduled maintenance has been completed.15 minScheduled
Jul 2, 2026Solana Mainnet Streaming Upgrade (US West)The scheduled maintenance has been completed.15 minScheduled
Jul 1, 2026Investigating - Zora Mainnet Degraded PerformanceThis incident has been resolved.22 minResolved
Jun 30, 2026Investigating - Mythos Mainnet Degraded PerformanceThis incident has been resolved.3h 20mResolved
Jun 27, 2026Solana getTransaction Methods Europe Region Degraded PerformanceThis incident has been resolved.5h 8mResolved
Jun 26, 2026Elevated error rates on Data APIsThis incident has been resolved! Between approximately 21:40 and 23:10 UTC on June 26, Data API requests experienced elevated error rates and increased latency. The issue has been identified and mitigated and all…1h 29mResolved
Jun 26, 2026Solana gRPC US East Degraded PerformanceThis incident has been resolved.15 minResolved
Jun 26, 2026Dashboard Webhook Management ErrorsThis incident has been resolved.6h 35mResolved
Jun 26, 2026Base Mainnet Network Wide StallBlock production is resumed and our nodes are back in sync.16 minResolved
Jun 26, 2026Injective Testnet Network UpgradeThe scheduled maintenance has been completed.30 minScheduled
Jun 26, 2026User Operations landing inconsistently on Base MainnetThis incident has been resolved.38 minResolved
Jun 25, 2026Base Mainnet Network Wide StallThis incident has been resolved and we've restarted our nodes.2h 26mResolved
Jun 25, 2026Solana getSignatureStatuses and getSignaturesForAddress Degraded Performance Europe RegionThis incident has been resolved.28h 37mResolved
Jun 24, 2026[Network Wide] Celo Sepolia Network StalledIncident is resolved: block are being produced again!-1440 minResolved
Jun 24, 2026[Network-Wide] Abstract Mainnet StalledThis incident has been resolved.12 minResolved
Jun 24, 2026Solana getSignatureStatuses and getSignaturesForAddress Degraded PerformanceThis incident has been resolved.41 minResolved
Jun 22, 2026getLogs Degraded Performance For Networks With Unlimited Block RangeThis incident has been resolved.2h 31mResolved
Jun 20, 2026Solana gRPC - degraded performance in US EastThis incident has been resolved. The root cause was a service crash on our replay mechanism. This issue has been patched and functionality has been completely restored14h 56mResolved
Jun 16, 2026Identified - Degraded eth_getProof responses on Base MainnetThis incident has been resolved.147h 9mResolved
Jun 12, 2026Solana Webhooks - Backfill in ProgressThe backfill has now finished, and the incident is fully resolved.21h 15mResolved
Jun 12, 2026Hyperliquid Mainnet Degraded PerformanceThis incident has been resolved.1h 17mResolved
Jun 4, 2026Ethereum Mainnet - eth_sendRawTransaction DegradedThis incident has been resolved.1h 2mResolved

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How to Read This Alchemy Incident Log

Each row is an incident PulsAPI observed, not a summary written afterwards. The duration is wall-clock time between the first failing check and the first clean one, so it includes the window before Alchemy acknowledged anything. Vendor post-mortems typically measure from acknowledgement, which is why their numbers are usually shorter.

Incidents still open have no duration yet and are listed as ongoing rather than being given a running total. The archive covers the last 365 days; anything older has aged out of the window rather than never having happened.

The longest single Alchemy outage in this window ran 6d 3h, against a mean recovery of 5h 59m. If you depend on Alchemy in a customer-facing path, the longest figure is the one to design around. The mean is what happens on a normal bad day; the maximum is what happens on the worst one.