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Portfolio Wallet network support depends on the stablecoin and operation. Use the network-specific address returned by your wallet and the live yield-source catalog for eligible positions.

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Production

USDC can move between supported networks through CCTP. Ethereum USDT and TRON USDT each stay on their own network. Ground does not convert between stablecoins. See Allocation groups for strategy compatibility. If a network is unsupported for the requested operation, the API returns a 400 error with details.

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Network keys and address formats

New wallets prepare supported EVM, Solana, TRON, and Stellar deposit addresses automatically. Use an address only after it appears in depositAddresses. See Address readiness and Power Yield for Stellar Balances. Use the same network key for depositAddresses and withdrawal destinationChain. For example, a sandbox Solana deposit uses depositAddresses.solana_devnet, and a sandbox Stellar withdrawal uses destinationChain: "stellar_testnet". The address book documents its supported chains separately.

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Sandbox

Sandbox assets are valueless test tokens. Use the supported token deployment for the selected network. Production keys use canonical network names; sandbox keys identify the testnet explicitly. TRON sandbox uses Shasta. Its JustLend source is a simulated lending market; see JustLend V1 USDT for simulation limits.

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Transaction resources and delivery timing

Ground arranges the transaction resources needed for Ground-managed operations. You fund the supported stablecoin and use the API to allocate or withdraw it. Customers do not need to acquire or stake TRX for Ground-managed TRON API flows. USDC withdrawals across supported networks may require CCTP bridging. Withdrawal previews currently estimate this leg at about 20 minutes (PT20M); settlement depends on the networks and Circle attestation conditions. Use the withdrawal preview and track the withdrawal until completed.