Internally, the SDK uses ERC-4337 bundlers to deploy and to submit transaction using UserOps (e.g., when using smart sessions).

Supplying the API key is optional, but highly recommended for production use.

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Pimlico

To use Pimlico, provide an API key during account initialization:

const rhinestoneAccount = await createRhinestoneAccount({
  owners: {
    type: 'ecdsa',
    accounts: [account],
  },
  rhinestoneApiKey,
  bundler: {
    type: 'pimlico',
    apiKey: pimlicoApiKey,
  },
})

Reach out if you need support for other ERC-4337 providers!