This incident has been resolved. A fix was deployed at 18:27 UTC, and the elevated 503 errors are no longer occurring. RPC requests are operating normally.

A fix is being deployed. We'll update once it's fully rolled out.

We're seeing an increased rate of HTTP 503 errors on some RPC requests, including eth_getBlockReceipts on EVM networks, following a recent update. Our engineers have identified the cause and are working on a fix. We'll post an update shortly.