Which Robinhood Chain providers support trace and debug?
Alchemy — the provider named in Robinhood's own documentation — does not support the trace namespace or the full debug namespace on Robinhood Chain, per Alchemy's own docs. QuickNode, Chainstack, dRPC, GetBlock and Dwellir do.
Alchemy's Robinhood Chain documentation lists Trace API, Debug API, transaction receipts API, block timestamp API, user-operation simulation and gRPC as unsupported. Only debug_executionWitness and debug_executionWitnessByHash are available.
This matters because tracing is not optional for most serious work: debugging a failed transaction, reconstructing internal calls, or auditing a contract interaction all require it. Dwellir includes trace and debug on a $49/month plan.
Arbitrum chains also expose arbtrace_* methods — call, callMany, block, get, replayTransaction and filter. On a chain launched post-Nitro like Robinhood Chain, the standard debug_ and trace_ namespaces are the relevant path.