A gasless order replaces the user’s deposit transaction with a signature. The quote must have been requested with gasless: true; the user signs an authorization instead of sending a transaction, and an operator wallet submits the deposit and pays the gas. The gas cost is priced into the quote as the sponsor_gas fee component — or charged to the partner’s funding balance when the quote was requested with sponsor_fees. Gasless is available for cross-chain quotes whose source token is not the native asset, on chains where GetChains reports gasless: true. Same-chain swaps and native deposits are not gasless; GetQuote rejects them with gasless is not supported for this order.

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Request

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string
required
Hash of a quote requested with gasless: true.
The order is a oneof matching the source chain’s VM.

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EVM: evm

The deposit is authorized with a permit2 SignatureTransfer witness signature. The witness binds the signature to the quote: ApsisDeposit(bytes32 quoteHash) for a plain deposit, ApsisSwapDeposit(bytes32 quoteHash, address bridgeToken, uint256 minBridgeOut) when the quote has a source swap. The spender is the quote’s gasless_router_address.
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string
required
Address that signed and whose tokens are pulled.
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string
required
Unused permit2 nonce chosen by the signer, decimal string.
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uint64
required
Unix timestamp the signature expires at. A past deadline is rejected with signature deadline expired.
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string
required
The permit2 witness signature, 0x hex.
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string
Optional EIP-2612 permit signature approving permit2, for tokens where the owner has no standing permit2 allowance. 65 bytes, 0x hex.

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Solana: svm

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string
required
A fully user-signed deposit transaction with the quote’s sponsor_address as fee payer. The API validates it byte for byte — program, treasury, quote hash, amount, compute budget — then the sponsor co-signs and submits it.

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Response

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string
Echoed back.
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string
pending, submitting, submitted, or failed.
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string
The relayed deposit transaction, once submitted. Optional.
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string
Failure reason when status is failed. Optional.
Submission is idempotent per quote hash: calling again returns the current state of the existing submission rather than creating a second one. Poll it until tx_hash appears or the status is failed; from there the order is tracked like any other deposit with GetOrder.

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With the SDK

gaslessSteps on a chain adapter builds the signature or transaction, submits it, and polls until the deposit is on chain:

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Errors