Chainstack Outage History

164 incidents recorded over the last 365 days, 97 of them resolved, 2 still open. 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 Chainstack status100.00% uptime history

Every Recorded Chainstack Incident

Chainstack incidents, newest first, with date, duration and status.
DateIncidentDurationStatus
Nov 4, 2026Robinhood Mainnet Degraded Performance 5h 32mResolved
Nov 4, 2026Urgent Infrastructure Maintenance (Chainstack Cloud, Tokyo)Scheduled Maintenance2h 0mScheduled
Nov 3, 2026Degraded performance on Zcash Mainnet1h 47mResolved
Nov 3, 2026Stellar Testnet Degraded Performance2h 16mResolved
Nov 3, 2026Urgent Infrastructure Maintenance (Chainstack Cloud, Frankfurt)Scheduled Maintenance4h 0mScheduled
Nov 1, 2026Trader Nodes MaintenanceScheduled Maintenance48h 0mScheduled
Oct 29, 2026Major outage on Fantom Mainnet in Frankfurt3h 21mResolved
Oct 28, 2026Degraded performance on Harmony Mainnet in Frankfurt—Investigating
Oct 28, 2026Internal platform upgrades (Singapore region)Scheduled Maintenance2h 30mScheduled
Oct 28, 2026Scheduled Maintenance: London InfrastructureScheduled Maintenance12h 0mScheduled
Oct 27, 2026Urgent Network Maintenance (Chainstack Cloud, Ashburn)Scheduled Maintenance6h 0mScheduled
Oct 27, 2026Degraded performance affecting some services in Ashburn4h 16mResolved
Oct 26, 2026Degraded performance on Gnosis Chiado27 minResolved
Oct 23, 2026Internal platform upgrades (Singapore region)Scheduled Maintenance3h 0mScheduled
Oct 23, 2026TON Mainnet v2 API Degraded Performance47 minResolved
Oct 23, 2026Internal platform upgrades (Singapore region)Scheduled Maintenance3h 0mScheduled
Oct 23, 2026Degraded performance on Base Sepolia Testnet2h 51mResolved
Oct 22, 2026Internal platform upgrades (Singapore region)Scheduled Maintenance3h 0mScheduled
Oct 22, 2026Cronos Mainnet UpgradeScheduled Maintenance1h 0mScheduled
Oct 22, 2026Ethereum Sepolia Testnet outage15h 37mResolved
Oct 21, 2026Arbitrum Mainnet Degraded Performance4h 53mResolved
Oct 21, 2026Solana Mainnet Alpenglow Consensus Upgrade: Oct 21, 2026Scheduled Maintenance4h 0mScheduled
Oct 21, 2026Internal platform upgrades (Singapore region)Scheduled Maintenance3h 0mScheduled
Oct 21, 2026Internal platform upgrades (Singapore region)Scheduled Maintenance3h 0mScheduled
Oct 20, 2026Degraded performance affecting eth_call on HyperEVM Mainnet15h 51mResolved
Oct 20, 2026Internal platform upgrades (Singapore region)Scheduled Maintenance3h 0mScheduled
Oct 19, 2026Xlayer Testnet - Chain is halted13h 10mResolved
Oct 19, 2026Degraded performance affecting eth_call on HyperEVM Testnet4h 9mResolved
Oct 16, 2026Scheduled protocol upgrade (Polygon mainnet)Scheduled Maintenance30 minScheduled
Oct 13, 2026Hyperliquid Mainnet Degraded Performance17h 58mResolved
Oct 13, 2026Internal platform upgradesScheduled Maintenance2h 0mScheduled
Oct 13, 2026Degraded performance on BNB Smart Chain Mainnet Archive in London11 minResolved
Oct 10, 2026XRPL Testnet Outage45 minResolved
Oct 9, 2026Degraded performance on Elysium Testnet GEN1h 1mResolved
Oct 9, 2026XRPL Mainnet Degraded Performance2h 21mResolved
Oct 9, 2026Degraded performance on Arbitrum Sepolia in Tokyo50 minResolved
Oct 8, 2026Solana Devnet Unavailable3h 18mResolved
Oct 8, 2026Degraded performance on Ronin Saigon Testnet 5 minResolved
Oct 8, 2026Internal platform upgradesScheduled Maintenance30 minScheduled
Oct 8, 2026Degraded performance on Solana Mainnet Yellowstone gRPC261h 32mResolved
Oct 7, 2026Degraded performance on Ethereum Sepolia Testnet90h 1mResolved
Oct 7, 2026Aptos Testnet Global Nodes - Problem209h 34mResolved
Oct 6, 2026Solana Multi-Region Degraded Performance17h 43mResolved
Oct 6, 2026Scheduled protocol upgradeScheduled Maintenance1h 0mScheduled
Oct 5, 2026Degraded performance on Solana Mainnet nodes19 minResolved
Oct 2, 2026Robinhood Testnet Degraded Performance3h 25mResolved
Oct 2, 2026Global routing maintenance Kaia (Mainnet, Testnet)Scheduled Maintenance1h 0mScheduled
Oct 2, 2026Global routing maintenance MegaETH (Mainnet)Scheduled Maintenance1h 0mScheduled
Oct 2, 2026Degraded performance affecting some services in Ashburn2h 50mResolved
Oct 1, 2026TON Mainnet v3 API Degraded Performance587h 35mResolved
Sep 30, 2026Lagging on base-mainnet nodes 25h 32mResolved
Sep 30, 2026Degraded performance on BSC Mainnet (Chainstack Cloud, Ashburn)1h 19mResolved
Sep 30, 2026Degraded performance on Hyperliquid Mainnet1h 6mResolved
Sep 29, 2026Scheduled protocol upgrade Stellar MainnetScheduled Maintenance2h 0mScheduled
Sep 29, 2026Stellar Testnet Degraded Performance53 minResolved
Sep 29, 2026TON Mainnet network-wide issue affecting message broadcasts649h 51mResolved
Sep 28, 2026Global routing maintenance Tempo (Mainnet, Testnet)Scheduled Maintenance1h 0mScheduled
Sep 28, 2026Global routing maintenance Mantle MainnetScheduled Maintenance1h 0mScheduled
Sep 28, 2026Global routing maintenance Aptos (Mainnet, Testnet)Scheduled Maintenance1h 0mScheduled
Sep 28, 2026Degraded performance on Cronos Mainnet (Chainstack Cloud, Global)2h 24mResolved
Sep 25, 2026Polygon Amoy Testnet Degraded Performance1h 40mResolved
Sep 25, 2026Degraded performance on Ethereum Sepolia Testnet in Ashburn4h 17mResolved
Sep 25, 2026Scheduled protocol upgradeScheduled Maintenance1h 0mScheduled
Sep 25, 2026Degraded performance on Cronos Mainnet 18h 51mResolved
Sep 24, 2026Degraded Performance on Polygon Amoy for London and Ashburn20h 11mResolved
Sep 24, 2026Solana Devnet Degraded Performance Due to Upgrade6 minResolved
Sep 24, 2026Internal platform upgrades (London region)Scheduled Maintenance2h 0mScheduled
Sep 24, 2026Internal platform upgrades TON Global NodesScheduled Maintenance1h 0mScheduled
Sep 23, 2026Ronin Saigon Testnet Degraded Performance6h 42mResolved
Sep 23, 2026Degraded performance on Ronin Saigon Global nodes2h 21mResolved
Sep 23, 2026Internal platform upgrades TON Global NodesScheduled Maintenance1h 0mScheduled
Sep 23, 2026Internal platform upgrades(Singapore region)Scheduled Maintenance2h 0mScheduled
Sep 22, 2026Scheduled protocol upgrade – Solana Mainnet v4.3.0Scheduled Maintenance24h 0mScheduled
Sep 22, 2026Internal platform upgrades(New York region)Scheduled Maintenance7h 0mScheduled
Sep 22, 2026TON Testnet network issue19h 33mResolved
Sep 21, 2026Cronos Mainnet Degraded Performance3h 5mResolved
Sep 21, 2026Degraded performance on Solana Mainnet in Frankfurt1h 22mResolved
Sep 21, 2026Internal platform upgradesScheduled Maintenance3h 0mScheduled
Sep 21, 2026Internal platform upgradesScheduled Maintenance1h 0mScheduled
Sep 19, 2026Degraded performance on Robinhood Mainnet Global nodes18h 4mResolved
Sep 18, 2026Internal platform upgrades (Virtuozzo, Dallas)Scheduled Maintenance3h 0mScheduled
Sep 16, 2026Stellar Mainnet Incident1h 27mResolved
Sep 16, 2026Internal platform upgrades (Virtuozzo, Frankfurt)Scheduled Maintenance3h 0mScheduled
Sep 16, 2026Degraded performance on Solana Mainnet in Frankfurt39 minResolved
Sep 15, 2026Solana Mainnet – Degraded Performance Across Multiple Regions5h 19mResolved
Sep 15, 2026Internal platform upgrades(Limestone, Tokyo)Scheduled Maintenance3h 0mScheduled
Sep 15, 2026Internal platform upgrades - FRA-1Scheduled Maintenance3h 0mScheduled
Sep 15, 2026Internal platform upgrades (Chainstack Cloud, Tokyo)Scheduled Maintenance2h 0mScheduled
Sep 14, 2026Internal platform upgradesScheduled Maintenance10 minScheduled
Sep 11, 2026Degraded performance on XRPL Mainnet nodes57 minResolved
Sep 11, 2026Degraded performance on Cronos Mainnet nodes31h 59mResolved
Sep 10, 2026Degraded Performance on Cronos Mainnet10h 1mResolved
Sep 10, 2026Degraded performance on BSC Mainnet Full nodes in Singapore4h 5mResolved
Sep 10, 2026Internal platform upgradesScheduled Maintenance10 minScheduled
Sep 10, 2026Degraded performance on Cronos Mainnet2h 4mResolved
Sep 9, 2026Degraded performance on Gnosis Mainnet nodes42 minResolved
Sep 9, 2026Internal platform upgrades (Chainstack Cloud, Los Angeles)Scheduled Maintenance3h 0mScheduled
Sep 9, 2026Degraded performance on BNB Smart Chain Mainnet4h 25mResolved
Sep 7, 2026Internal platform upgrades-US / AshburnScheduled Maintenance3h 0mScheduled
Sep 7, 2026Degraded performance affecting services in Frankfurt1h 34mResolved
Sep 4, 2026Degraded Performance on BNB Smart Chain27 minResolved
Sep 4, 2026Major outage on Robinhood Mainnet nodes2h 7mResolved
Sep 3, 2026Degraded performance on Polygon Mainnet Archive nodes in Ashburn17h 13mResolved
Sep 3, 2026Urgent Network Maintenance – US / AshburnScheduled Maintenance8h 0mScheduled
Sep 3, 2026Internal platform upgrades (TRON Global Nodes Mainnet and Nile Testnet)Scheduled Maintenance1h 0mScheduled
Sep 2, 2026Base Sepolia - Degraded Performance10 minResolved
Sep 2, 2026Ronin Saigon – Incident 12h 31mResolved
Sep 2, 2026Elevated Response Times on Solana Mainnet in the Frankfurt Region2h 14mResolved
Sep 2, 2026Degraded Performance on Arbitrum Sepolia 50 minResolved
Sep 2, 2026Degraded performance affecting services in London cluster3h 7mResolved
Sep 1, 2026[Urgent] Internal platform upgrades in Dallas.Scheduled Maintenance1h 0mScheduled
Sep 1, 2026[Urgent] Internal platform upgradesScheduled Maintenance1h 0mScheduled
Aug 31, 2026Elevated Response Times on Solana Mainnet10h 23mResolved
Aug 31, 2026Degraded Performance on BNB Smart Chain Debug & Trace Methods33 minResolved
Aug 31, 2026Internal platform upgradesScheduled Maintenance1h 30mScheduled
Aug 30, 2026ZKsync Sepolia Testnet Outage3h 21mResolved
Aug 30, 2026Degraded Performance on Cronos Mainnet - Network Halt87h 2mResolved
Aug 29, 2026Degraded Performance on Ehereum Sepolia on Ashburn region26 minResolved
Aug 29, 2026Elevated Response Times on Solana Mainnet in the Frankfurt Region38h 11mResolved
Aug 28, 2026Elevated Response Times on Solana Mainnet3h 18mResolved
Aug 28, 2026Degraded performance on Base Mainnet (Chainstack Cloud, London)22h 18mResolved
Aug 27, 2026Degraded Performance on Polygon Mainnet in London20h 41mResolved
Aug 27, 2026Solana Devnet Outage in Ashburn1h 36mResolved
Aug 27, 2026Stellar Testnet Incident44 minResolved
Aug 27, 2026Degraded performance on Polygon Mainnet in Ashburn27h 21mResolved
Aug 27, 2026Outage on Polygon Mainnet (Chainstack Cloud, London)1h 2mResolved
Aug 27, 2026TON Mainnet - incomplete data on some historical trace queries—Investigating
Aug 27, 2026Internal platform upgradesScheduled Maintenance30 minScheduled
Aug 26, 2026Solana Mainnet endpoint connectivity issue — NYC5 minResolved
Aug 26, 2026Urgent Internal platform upgradesScheduled Maintenance30 minScheduled
Aug 26, 2026Internal platform upgrades (Ronin Global Nodes: Mainnet & Saigon Testnet)Scheduled Maintenance1h 0mScheduled
Aug 26, 2026Stable Mainnet degraded performance18h 3mResolved
Aug 26, 2026Starknet Mainnet degraded performance54 minResolved
Aug 25, 2026Urgent Internal platform upgrade Sui Mainnet[London]Scheduled Maintenance1h 0mScheduled
Aug 25, 2026Internal platform upgrades - Arbitrum Mainnet Global NodesScheduled Maintenance1h 0mScheduled
Aug 25, 2026Internal platform upgrades - LAX2Scheduled Maintenance2h 0mScheduled
Aug 25, 2026Internal platform upgradesScheduled Maintenance30 minScheduled
Aug 25, 2026Sui Mainnet outage1h 2mResolved
Aug 24, 2026Degraded performance on BSC Mainnet nodes in Singapore8h 10mResolved
Aug 24, 2026Internal platform upgrades - LAX2Scheduled Maintenance1h 0mScheduled
Aug 24, 2026Degraded performance on BSC Mainnet nodes in Ashburn6h 53mResolved
Aug 24, 2026Degraded performance on Solana Mainnet in LAX5h 13mResolved
Aug 24, 2026Internal platform upgrades - Avalanche, Monad, Starknet, BlastScheduled Maintenance1h 0mScheduled
Aug 24, 2026Global routing maintenance / Ethereum (Mainnet, Sepolia, Hoodi)Scheduled Maintenance1h 0mScheduled
Aug 21, 2026Internal platform upgrades, Chainstack Cloud AshburnScheduled Maintenance1h 0mScheduled
Aug 21, 2026BSC Mainnet lagging in LONDON cluster1h 5mResolved
Aug 20, 2026Polygon Amoy Degradation During Network Stress Test - Since 15:00 UTC9h 21mResolved
Aug 20, 2026Internal platform upgrades / NYCScheduled Maintenance6h 0mScheduled
Aug 19, 2026Degraded Performance on Base Sepolia1h 38mResolved
Aug 19, 2026Degraded Performance on BNB Smart Chain Archive Nodes93h 36mResolved
Aug 19, 2026Urgent internal Platform upgarde(NewYork)Scheduled Maintenance1h 0mScheduled
Aug 18, 2026Degraded performance on TON Testnet668h 16mResolved
Aug 18, 2026Internal platform upgrades / FrankfurtScheduled Maintenance3h 0mScheduled
Aug 18, 2026Scheduled protocol upgradeScheduled Maintenance1h 0mScheduled
Aug 18, 2026Urgent internal Platform upgarde(Frankfurt)Scheduled Maintenance1h 0mScheduled
Aug 16, 2026Arbitrum Mainnet eth_getLogs degradation in Frankfurt2h 3mResolved
Aug 12, 2026Urgent Infrastructure Maintenance(Optimism Mainnet, Hyperliquid, Cronos)Scheduled Maintenance1h 0mScheduled
Aug 12, 2026Solana Mainnet Degraded Performance across regions2h 16mResolved
Aug 12, 2026Avalanche Fuji Outage76h 5mResolved
Aug 11, 2026Degraded Performance on Multiple Blockchain Networks2h 23mResolved
Aug 11, 2026Internal platform upgrades / LondonScheduled Maintenance2h 0mScheduled
Aug 8, 2026Degraded performance on Solana Mainnet (Chainstack Cloud, Los Angeles)5h 10mResolved
Aug 7, 2026Polygon Amoy degraded performance in LON and ASH119h 2mResolved
Jan 20, 2026Solana getProgramAccounts RPS Limit reduction6535h 2mResolved

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How to Read This Chainstack 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 Chainstack 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 Chainstack outage in this window ran 272d 7h, against a mean recovery of 2d 14h. If you depend on Chainstack 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.