Three rules for batching cross-chain swaps

Batch cross-chain swaps by grouping routes with matching constraints, capping shared execution, and tracking each leg through settlement. A single swap once meant one route and one outcome; batching puts several routes in a shared plan, while source and destination chains still confirm separate actions.

Which swaps belong in one batch?

Batch swaps only when their execution requirements are compatible. Shared routing can reduce repeated work, but it does not make different chain conditions or token outcomes interchangeable. Start by grouping routes that can use the same execution window and failure policy, then check whether each route still has enough liquidity at its expected size.

• Source and destination chains
• Input and output tokens
• Slippage limits and deadlines
• Liquidity and expected output at the batch size

These checks also show where a broader bridge design matters: a super bridge model for cross-chain swap developers is one way to think about coordinating routes, but the details of each transfer still affect what you can safely group.

How should you set limits for a batch?

Set limits per route as well as for the batch as a whole. A shared transaction can fail because one leg no longer meets its conditions, so decide in advance whether that leg should be removed, retried, or cause the batch to stop. Keep the user’s minimum output and deadline tied to the specific swap; a favorable average across the batch does not compensate for one route delivering too little.

Use this sequence when preparing a batch:

1. Group routes with matching chain, token, and execution requirements.
2. Set each swap’s minimum output and deadline, then define any batch-wide size or cost cap.
3. Submit the batch and record a separate status for every route, including any leg that needs a retry.

How do you know when a batch is complete?

Treat submission as the start of tracking, not proof of delivery. The source-chain transaction may be confirmed while a destination action is still pending; bridging systems can also separate initiation, delivery, and settlement into distinct stages. Keep route identifiers and transaction references for each leg so you can tell a completed swap from one awaiting a destination step or retry.

The practical rule is simple: batch the coordination work, but preserve separate limits and status for each swap. That keeps the efficiency of shared execution without hiding which leg succeeded, stalled, or needs attention.