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How sizes work

  • The largest firm quote now is maxFirmSize on GET /levels (per direction) and on GET /quote (at the rate you were just quoted), in USDC and in the coin. A request above it answers 400 over-size with the maximum in the detail; below the minimum, 400 amount-too-small with the minimum.
  • A quote at or below the size shown fills at exactly the quoted amounts or reverts: no slippage, no partial fill.
  • The size is bounded by the maker’s wallet balance for the coin it pays, its allowance to the order protocol, the largest trade its book allows and the quotes it is holding for other takers. It moves as fills happen and as makers rebalance.
  • A dash with a reason means the direction is not quoted at this moment: maker funding (the maker’s balance or allowance cannot cover a trade), no midmarket rate, paused.

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Need more?

For a size that must always be available, or a pair not listed, write to hello@aile.tech with the corridor, the expected daily volume, ticket sizes and the hours that matter to you. See Liquidity and capacity.