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Starting May 19th 2026, 12:00 UTC, accessing legacy centralized gateways (a.k.a. v2 archives, a.k.a. the open private SQD Network - URLs starting with https://v2.archive.subsquid.io) when self-hosting will require an API key.
This change will not affect Cloud users relying on legacy gateways.
We recommend that you create your API key and start using it immediately. Go to portal.sqd.dev/app or press the button below:

The API keys app

Register and create your gateway API key
This API keys app will be also used to issue Portal API keys in the near future.

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Using an API key in Squid SDK

1

Check if your squid uses a legacy gateway

  • If you have a .setGateway() call in your processor or data source configuration, you’ll need to supply a key.
  • If your squid is Portal-based (.setPortal()) or RPC-only (neither .setGateway() nor .setPortal() in processor configuration), you don’t need to do anything at the moment.
2

Update @subsquid packages

npx --yes npm-check-updates --filter '@subsquid/*' --target semver --upgrade && npm i
3

Update your processor / data source

Add your API key to the argument of the .setGateway call, for example:
-  .setGateway('https://v2.archive.subsquid.io/network/ethereum-mainnet')
+  .setGateway({
+    url: 'https://v2.archive.subsquid.io/network/ethereum-mainnet',
+    apiKey: 'your_api_key'
+  })
Done. With this, you’ll be able to continue using legacy gateways in your self-hosted setup when the authentication requirements are made strict.