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Advanced, and non-core. The agent-wallet tools are optional and sit outside the core payments product. For most integrations the payment tools, the Payment SDK, or the CLI are the better fit. This page covers on-chain and self-custody setups.
Earlier versions of the MCP server and CLI also exposed an on-chain agent wallet, created from a sub-account and driven with an API key and secret alongside the gateway key:
Those keys unlocked tools for on-chain operations, contract calls, and message signing. They are not part of the core payments setup. To get paid, use the payments API and the payment tools.