> ## Documentation Index
> Fetch the complete documentation index at: https://docs.validationcloud.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Debug API

Traces need the state of the traced block, so the Debug API works for roughly the last 10,000 blocks, about 2.8 hours on Unichain Mainnet. Older blocks return JSON-RPC error `-32603` with a message that contains `state at block #<number> is pruned`.


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