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The Idea

1:1 stablecoin swaps, executed by autonomous smart contracts.

Users can swap between listed stablecoins at 1:1. No slippage. No fees.

Swaps execute when reserves allow. When the asset someone wants is available, the swap settles against those reserves; when it isn't, they can get in line for it, and whatever is available fills against what they asked for. Queued liquidity is not a guarantee — a position fills as reserves arrive, in FIFO order, at 1:1 whenever the fill lands. Getting in line is a choice: a swap can just as easily be told to revert instead.

How liquidity is organized​

A hub pool holds the core stablecoins — USDC and USDS at launch. Each additional stablecoin gets its own spoke pool, funded by liquidity providers and paired against the hub; USDT is expected to be the first. Swaps route hub-to-hub, hub-to-spoke or spoke-to-hub, always at par. See Supply for how the two sides work.

Why this matters​

Listed stablecoins are treated at par by the protocol. Conventional venues still make users manage route selection, price impact, fees and execution timing for assets that are intended to track the same unit of account.

Large swaps on AMMs can require splitting orders, monitoring execution and managing slippage. The DollarStore protocol is simpler: a fixed 1:1 rate in normalized units, a single transaction, and an explicit choice between settling only what is available now or queueing the rest.

Who this is for​

  • Aggregators integrating stablecoin routes (1inch, CowSwap, 0x)
  • Protocols needing predictable stablecoin conversion
  • Issuers who want a par-value venue for their stablecoin, listed as its own spoke
  • Anyone moving stablecoins at scale