Chainstack Outage History

Chainstack is up right now

Chainstack had 103 outages in the last 2 years totaling 150h 59m of downtime — averaging 4.2 incidents per month.

There were 103 Chainstack outages since December 10, 2025 totaling 150h 59m of downtime. Each is summarised below — incident details, duration, and resolution information.

Source: https://status.chainstack.com

Minor May 28, 2026

Sui Mainnet degraded performance

Detected by Pingoru
May 28, 2026, 09:01 PM UTC
Resolved
May 28, 2026, 09:17 PM UTC
Duration
16m
Affected: Sui Global Nodes (Sui Mainnet)Sui Global Nodes (Sui Testnet)
Timeline · 2 updates
  1. investigating May 28, 2026, 09:01 PM UTC

    We are currently investigating this incident.

  2. resolved May 28, 2026, 09:17 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 28, 2026

Base Mainnet - Degraded performance - Azul Network Upgrade

Detected by Pingoru
May 28, 2026, 06:21 PM UTC
Resolved
May 28, 2026, 06:29 PM UTC
Duration
7m
Affected: Base Global Nodes (Base Mainnet)Base Trader Nodes (Base Mainnet Full (Chainstack Cloud, Los Angeles))Base Trader Nodes (Base Mainnet Archive (Chainstack Cloud, Los Angeles))
Timeline · 2 updates
  1. investigating May 28, 2026, 06:21 PM UTC

    We are currently investigating this incident.

  2. resolved May 28, 2026, 06:29 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 28, 2026

Degraded performance on Gnosis Chiado Testnet

Detected by Pingoru
May 28, 2026, 07:10 AM UTC
Resolved
May 28, 2026, 07:44 AM UTC
Duration
33m
Affected: Gnosis Global Nodes (Gnosis Chain Chiado Testnet)
Timeline · 2 updates
  1. investigating May 28, 2026, 07:10 AM UTC

    We are currently investigating this incident.

  2. resolved May 28, 2026, 07:44 AM UTC

    This incident has been resolved.

Read the full incident report →

Major May 27, 2026

TRON Nile Testnet - Outage

Detected by Pingoru
May 27, 2026, 04:06 PM UTC
Resolved
May 27, 2026, 04:50 PM UTC
Duration
44m
Affected: TRON Global Nodes (TRON Nile Testnet)
Timeline · 3 updates
  1. investigating May 27, 2026, 04:06 PM UTC

    We are currently investigating this incident.

  2. monitoring May 27, 2026, 04:23 PM UTC

    We implemented a fix and are currently monitoring the result.

  3. resolved May 27, 2026, 04:50 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 27, 2026

Degraded performance on Ethereum Sepolia

Detected by Pingoru
May 27, 2026, 01:30 PM UTC
Resolved
May 27, 2026, 05:02 PM UTC
Duration
3h 32m
Affected: Ethereum Global Nodes (Ethereum Sepolia Testnet)Ethereum Trader Nodes (Ethereum Sepolia Testnet Full (Virtuozzo, Frankfurt))Ethereum Beacon (Ethereum Sepolia Testnet Beacon)Ethereum Beacon (Ethereum Sepolia Testnet Beacon (Virtuozzo, Frankfurt))
Timeline · 2 updates
  1. identified May 27, 2026, 01:30 PM UTC

    We are continuing to work on a fix for this incident.

  2. resolved May 27, 2026, 05:02 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 26, 2026

Ethereum Sepolia - Degraded Performance / London

Detected by Pingoru
May 26, 2026, 12:05 PM UTC
Resolved
May 26, 2026, 01:31 PM UTC
Duration
1h 25m
Affected: Ethereum Global Nodes (Ethereum Sepolia Testnet)Ethereum Beacon (Ethereum Sepolia Testnet Beacon)
Timeline · 2 updates
  1. investigating May 26, 2026, 12:05 PM UTC

    We are currently investigating this incident.

  2. resolved May 26, 2026, 01:31 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 22, 2026

TON Testnet - Network Halt

Detected by Pingoru
May 22, 2026, 03:37 PM UTC
Resolved
May 22, 2026, 05:13 PM UTC
Duration
1h 36m
Affected: TON Global Nodes (TON Testnet API v2)TON Global Nodes (TON Testnet API v3)
Timeline · 2 updates
  1. investigating May 22, 2026, 03:37 PM UTC

    We are currently investigating this incident.

  2. resolved May 22, 2026, 05:13 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 22, 2026

Polygon Mainnet Archive - Degraded Performance

Detected by Pingoru
May 22, 2026, 02:06 PM UTC
Resolved
May 23, 2026, 12:01 PM UTC
Duration
21h 55m
Affected: Polygon Global Nodes (Polygon Mainnet)Polygon Trader Nodes (Polygon Mainnet Archive (Chainstack Cloud, London))
Timeline · 2 updates
  1. investigating May 22, 2026, 02:06 PM UTC

    We are currently investigating this incident.

  2. resolved May 23, 2026, 12:01 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 22, 2026

Partial outage in London cluster

Detected by Pingoru
May 22, 2026, 04:01 AM UTC
Resolved
May 22, 2026, 07:15 AM UTC
Duration
3h 14m
Affected: Arbitrum Global Nodes (Arbitrum Sepolia)Base Global Nodes (Base Mainnet)BNB Smart Chain Global Nodes (BNB Smart Chain Mainnet)BNB Smart Chain Global Nodes (BNB Smart Chain Testnet)BNB Smart Chain Trader Nodes (BNB Smart Chain Mainnet Archive (Chainstack Cloud, London))Celo Global Nodes (Celo Mainnet)BNB Smart Chain Trader Nodes (BNB Smart Chain Mainnet Full (Chainstack Cloud, London))BNB Smart Chain Trader Nodes (BNB Smart Chain Testnet Full (Chainstack Cloud, London))Ethereum Global Nodes (Ethereum Mainnet)Ethereum Trader Nodes (Ethereum Mainnet Archive (Chainstack Cloud, London))Cronos Trader Nodes (Cronos Testnet Full (Chainstack Cloud, London))Ethereum Global Nodes (Ethereum Sepolia Testnet)Ethereum Trader Nodes (Ethereum Mainnet Full (Chainstack Cloud, London))Gnosis Global Nodes (Gnosis Chain Mainnet)Ethereum Beacon (Ethereum Mainnet Beacon)Gnosis Trader Nodes (Gnosis Mainnet Full (Chainstack Cloud, London))Gnosis Trader Nodes (Gnosis Mainnet Archive (Chainstack Cloud, London))Ethereum Beacon (Ethereum Mainnet Beacon (Chainstack Cloud, London))Optimism Global Nodes (Optimism Mainnet)Plasma Global Nodes (Plasma Mainnet)Polygon Global Nodes (Polygon Mainnet)Polygon Trader Nodes (Polygon Mainnet Full (Chainstack Cloud, London))Polygon Trader Nodes (Polygon Mainnet Archive (Chainstack Cloud, London))Scroll Global Nodes (Scroll Mainnet)Scroll Global Nodes (Scroll Sepolia Testnet)Sonic Global Nodes (Sonic Mainnet)TRON Global Nodes (TRON Mainnet)TRON Global Nodes (TRON Nile Testnet)ZKsync Era Global Nodes (ZKsync Era Mainnet)
Timeline · 5 updates
  1. investigating May 22, 2026, 04:01 AM UTC

    We are currently investigating this incident.

  2. identified May 22, 2026, 04:23 AM UTC

    We are continuing to work on a fix for this incident.

  3. monitoring May 22, 2026, 05:11 AM UTC

    We implemented a fix and are currently monitoring the result.

  4. monitoring May 22, 2026, 05:13 AM UTC

    We implemented a fix and are currently monitoring the result. We're still working on recovering Polygon Mainnet Archive & BSC Testnet

  5. resolved May 22, 2026, 07:15 AM UTC

    This incident has been resolved.

Read the full incident report →

Notice May 21, 2026

Degraded performance on Solana Mainnet nodes in London

Detected by Pingoru
May 21, 2026, 01:02 PM UTC
Resolved
May 22, 2026, 01:54 PM UTC
Duration
1d
Affected: Solana Trader Nodes (Solana Mainnet Full (Chainstack Cloud, London))
Timeline · 5 updates
  1. investigating May 21, 2026, 01:02 PM UTC

    We are currently investigating this incident.

  2. monitoring May 21, 2026, 03:10 PM UTC

    We implemented a fix and are currently monitoring the result.

  3. identified May 22, 2026, 08:40 AM UTC

    We are continuing to work on a fix for this incident.

  4. monitoring May 22, 2026, 12:12 PM UTC

    We implemented a fix and are currently monitoring the result.

  5. resolved May 22, 2026, 01:54 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 20, 2026

Arbitrum Mainnet - Degraded Performance Across Multiple Regions

Detected by Pingoru
May 20, 2026, 07:57 PM UTC
Resolved
May 21, 2026, 01:34 AM UTC
Duration
5h 36m
Affected: Arbitrum Global Nodes (Arbitrum One Mainnet)
Timeline · 3 updates
  1. investigating May 20, 2026, 07:57 PM UTC

    We are currently investigating this incident.

  2. monitoring May 20, 2026, 09:14 PM UTC

    We implemented a fix and are currently monitoring the result.

  3. resolved May 21, 2026, 01:34 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 20, 2026

Polygon Amoy - Network Stress Test

Detected by Pingoru
May 20, 2026, 07:57 PM UTC
Resolved
May 21, 2026, 01:15 AM UTC
Duration
5h 18m
Affected: Polygon Global Nodes (Polygon Amoy Testnet)
Timeline · 3 updates
  1. identified May 20, 2026, 07:57 PM UTC

    We are continuing to work on a fix for this incident.

  2. monitoring May 20, 2026, 09:13 PM UTC

    We implemented a fix and are currently monitoring the result.

  3. resolved May 21, 2026, 01:15 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 20, 2026

ZKsync Era Mainnet – Degraded Performance / London

Detected by Pingoru
May 20, 2026, 08:05 AM UTC
Resolved
May 20, 2026, 09:02 AM UTC
Duration
57m
Affected: ZKsync Era Global Nodes (ZKsync Era Mainnet)
Timeline · 2 updates
  1. investigating May 20, 2026, 08:05 AM UTC

    We are currently investigating this incident.

  2. resolved May 20, 2026, 09:02 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 19, 2026

Degraded performance on Solana Mainnet

Detected by Pingoru
May 19, 2026, 11:05 PM UTC
Resolved
May 20, 2026, 07:00 AM UTC
Duration
7h 54m
Affected: Solana Global Nodes (Solana Mainnet)Solana Trader Nodes (Solana Mainnet Full (Chainstack Cloud, London))
Timeline · 3 updates
  1. identified May 19, 2026, 11:05 PM UTC

    We are continuing to work on a fix for this incident, users may experience sync lag.

  2. monitoring May 20, 2026, 05:59 AM UTC

    We implemented a fix and are currently monitoring the result.

  3. resolved May 20, 2026, 07:00 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 18, 2026

Base Sepolia - Degraded Performance

Detected by Pingoru
May 18, 2026, 03:21 PM UTC
Resolved
May 18, 2026, 10:34 PM UTC
Duration
7h 13m
Affected: Base Global Nodes (Base Sepolia Testnet)
Timeline · 2 updates
  1. investigating May 18, 2026, 03:21 PM UTC

    We are currently investigating this incident.

  2. resolved May 18, 2026, 10:34 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 18, 2026

Ethereum Sepolia - Degraded Performance

Detected by Pingoru
May 18, 2026, 02:21 PM UTC
Resolved
May 18, 2026, 03:05 PM UTC
Duration
43m
Affected: Ethereum Global Nodes (Ethereum Sepolia Testnet)
Timeline · 2 updates
  1. investigating May 18, 2026, 02:21 PM UTC

    We are currently investigating this incident.

  2. resolved May 18, 2026, 03:05 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 14, 2026

Degraded performance on Solana Mainnet in New York and Singapore

Detected by Pingoru
May 14, 2026, 07:31 AM UTC
Resolved
May 15, 2026, 11:39 AM UTC
Duration
1d 4h
Affected: Solana Global Nodes (Solana Mainnet)
Timeline · 3 updates
  1. investigating May 14, 2026, 07:31 AM UTC

    We are currently investigating this incident.

  2. monitoring May 14, 2026, 07:36 AM UTC

    We implemented a fix and are currently monitoring the result.

  3. resolved May 15, 2026, 11:39 AM UTC

    This incident has been resolved.

Read the full incident report →

Notice May 13, 2026

Hyperliquid Testnet network halt

Detected by Pingoru
May 13, 2026, 11:07 AM UTC
Resolved
May 13, 2026, 12:35 PM UTC
Duration
1h 28m
Affected: Hyperliquid Global Nodes (Hyperliquid Testnet)
Timeline · 3 updates
  1. investigating May 13, 2026, 11:07 AM UTC

    We are currently investigating degraded performance on Hyperliquid Testnet. Based on our findings so far, it appears block production has halted:

  2. monitoring May 13, 2026, 11:38 AM UTC

    We implemented a fix and are currently monitoring the result.

  3. resolved May 13, 2026, 12:35 PM UTC

    This incident has been resolved.

Read the full incident report →

Notice May 13, 2026

Polygon Amoy lagging

Detected by Pingoru
May 13, 2026, 08:39 AM UTC
Resolved
May 13, 2026, 09:50 AM UTC
Duration
1h 10m
Affected: Polygon Global Nodes (Polygon Amoy Testnet)
Timeline · 3 updates
  1. investigating May 13, 2026, 08:39 AM UTC

    We are currently investigating this incident.

  2. investigating May 13, 2026, 08:55 AM UTC

    We are currently investigating this incident.

  3. resolved May 13, 2026, 09:50 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 13, 2026

Solana Mainnet degraded performance in LONDON

Detected by Pingoru
May 13, 2026, 02:54 AM UTC
Resolved
May 13, 2026, 04:04 AM UTC
Duration
1h 10m
Affected: Solana Global Nodes (Solana Mainnet)Solana Trader Nodes (Solana Mainnet Full (Chainstack Cloud, London))
Timeline · 4 updates
  1. investigating May 13, 2026, 02:54 AM UTC

    We are currently investigating this incident.

  2. identified May 13, 2026, 02:55 AM UTC

    We are continuing to work on a fix for this incident.

  3. monitoring May 13, 2026, 02:56 AM UTC

    We implemented a fix and are currently monitoring the result.

  4. resolved May 13, 2026, 04:04 AM UTC

    This incident has been resolved.

Read the full incident report →

Notice May 12, 2026

Base Mainnet Incident Across Multiple Regions

Detected by Pingoru
May 12, 2026, 06:00 PM UTC
Resolved
May 13, 2026, 09:49 AM UTC
Duration
15h 49m
Affected: Base Global Nodes (Base Mainnet)
Timeline · 3 updates
  1. investigating May 12, 2026, 06:00 PM UTC

    We are currently investigating this incident.

  2. monitoring May 12, 2026, 06:56 PM UTC

    We implemented a fix and are currently monitoring the result.

  3. resolved May 13, 2026, 09:49 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 12, 2026

BSC Mainnet Archive - Degraded Performance in Singapore

Detected by Pingoru
May 12, 2026, 03:16 PM UTC
Resolved
May 12, 2026, 03:24 PM UTC
Duration
7m
Affected: BNB Smart Chain Global Nodes (BNB Smart Chain Mainnet)
Timeline · 2 updates
  1. investigating May 12, 2026, 03:16 PM UTC

    We are currently investigating this incident.

  2. resolved May 12, 2026, 03:24 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 12, 2026

Degraded performance on Solana Mainnet in Singapore

Detected by Pingoru
May 12, 2026, 12:09 PM UTC
Resolved
May 12, 2026, 08:39 PM UTC
Duration
8h 29m
Affected: Solana Global Nodes (Solana Mainnet)Solana Global Nodes (Solana Devnet)
Timeline · 2 updates
  1. investigating May 12, 2026, 12:09 PM UTC

    We are currently investigating this incident.

  2. resolved May 12, 2026, 08:39 PM UTC

    This incident has been resolved.

Read the full incident report →

Notice May 12, 2026

Degraded performance on Base Mainnet nodes in Ashburn

Detected by Pingoru
May 12, 2026, 07:15 AM UTC
Resolved
May 12, 2026, 01:10 PM UTC
Duration
5h 55m
Affected: Base Global Nodes (Base Mainnet)
Timeline · 3 updates
  1. investigating May 12, 2026, 07:15 AM UTC

    We are investigating reports of degraded performance on our Base Mainnet nodes in Ashburn. The users may experience higher latency or intermittent failures when interacting with the nodes.

  2. monitoring May 12, 2026, 12:55 PM UTC

    We implemented a fix and are currently monitoring the result.

  3. resolved May 12, 2026, 01:10 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor May 12, 2026

Degraded performance in Los Angeles (LAX) cluster

Detected by Pingoru
May 12, 2026, 04:23 AM UTC
Resolved
May 12, 2026, 07:01 AM UTC
Duration
2h 38m
Affected: Arbitrum Global Nodes (Arbitrum Sepolia)Arbitrum Trader Nodes (Arbitrum One Mainnet Archive (Chainstack Cloud, Los Angeles))Base Trader Nodes (Base Mainnet Archive (Chainstack Cloud, Los Angeles))Optimism Trader Nodes (Optimism Mainnet Archive (Chainstack Cloud, Los Angeles))
Timeline · 3 updates
  1. investigating May 12, 2026, 04:23 AM UTC

    We are currently investigating this incident.

  2. monitoring May 12, 2026, 04:32 AM UTC

    We implemented a fix and are currently monitoring the result.

  3. resolved May 12, 2026, 07:01 AM UTC

    This incident has been resolved.

Read the full incident report →