Error calling eth_sendRawTransaction on Arbitrum/Ankr

Developers
1

There might be some issue with the EVM RPC api key for Arbitrum/Ankr.

First I got inconsistent responses when querying the fee history on BlockPi/Ankr.

And then this when calling eth_sendRawTransaction:

... rpc.ankr.com/arbitrum, with payload: 
{"jsonrpc":"2.0","method":"eth_sendRawTransaction","id":62,"params":
["0x02f901ce82a4b18080839896 ...

...

MultiSendRawTransaction: Consistent(Err(JsonRpcError(JsonRpcError 
{ code: -32053, message: "API key is not allowed to access method" })))

@rvanasa

I stopped using Ankr/Arbitrum for the moment and use only BlockPi now with no issues.

2

Thanks for the heads-up! Did you encounter this error on the mainnet or local replica? I tried to repro this and received a similar error message locally, while everything worked as expected on mainnet.

As a temporary workaround, you could register a new provider with a custom API key (documentation). We will look into providing a default API key for the Ankr L2 endpoints.

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