prepare_deposit

io.github.rabeles11/metalend · Verify this server

Build everything needed to deposit into MetaLend's rebalancer, without signing anything. For gasless tokens (USDC, MUSD, PYUSD) returns an EIP-712 ReceiveWithAuthorization typed-data payload — sign it with your own wallet and pass the signature to submit_deposit. For approval-only tokens (USDT, RLUSD, USDG, USDE) returns on-chain approve() parameters instead — your wallet must broadcast that approval itself (this server has no RPC access and cannot do it for you), then call submit_deposit with no signature. The signature flow only accepts a raw 65-byte EOA-style ECDSA signature — smart-contract wallets (including via ERC-6492 counterfactual deployment) are rejected regardless of validity, even for gasless-eligible tokens. A smart-contract wallet should instead pass `method: "approval"` explicitly here (works for any token, needs no signature at all) — but `chain` must then be one that wallet can actually transact on (see `chain`'s own field description); this server cannot validate that. Requires a signed rebalancer config for this token already (use prepare_config/submit_config first if get_config shows none) — and validates the amount against the chain's minimum deposit — before returning anything, so a doomed request never reaches signing. A fixed on-behalf gas fee (see `fee` in the response, also available standalone via get_transaction_costs) is deducted from `amount` before the rebalancer credits it — the response's `expectedCreditedAmountRaw` is what will actually show up in get_balances after the deposit lands, not the full `amount` you send. Rate limited to 6 calls/minute per caller, no more than one call every 10s.