Parse a plain-English swap request (e.g. "swap 100 USDC for ETH on Optimism") into a structured intent: { intent: "swap"|"unknown", entities: [{type: sellToken|buyToken|amount|chain, value, raw}] }. Backed by the live Ophis parser.

Fetch a best-execution quote from the chain's Ophis orderbook (use a chainId from list_chains' tradeable). Amounts are in atoms (smallest unit, uint256 decimal string). For kind='sell' the amount is the sell amount before fee; for kind='buy' it is the desired buy amount. Returns the orderbook quote (sellAmount/buyAmount/feeAmount/validTo). Before build_order, apply slippage to the limit side by kind: kind='sell' -> lower buyAmount (min out); kind='buy' -> raise sellAmount (max in).

Build a bounded, ready-to-sign CoW order on Ophis. Returns { order, signing:{domain,types,primaryType}, fullAppData, appDataHash, partnerFee, next }. The receiver is ALWAYS PINNED to the owner (proceeds cannot leave the account); this public endpoint exposes no custom-receiver option. Uses the correct per-chain settlement contract (Optimism/MegaETH/HyperEVM are non-canonical) and embeds the CIP-75 partner fee. Apply slippage to the LIMIT side by kind: for kind 'sell' lower buyAmount (your minimum out); for kind 'buy' raise sellAmount (your maximum in). slippageBips is capped at 5000 (50%, default = the cap) and ENFORCED: build_order fetches a live quote and REJECTS the call if the limit is worse than slippageBips vs that quote (or if a quote cannot be fetched — retry). Sign order as EIP-712 with signing, then call submit_order.

Relay a PRE-SIGNED order to the chain's Ophis orderbook. Pass the exact order object and fullAppData from build_order, plus your EIP-712 signature and from (owner). The MCP holds no keys — it only forwards. Returns the order UID on success.

Look up a wallet's Ophis fee-rebate tier and live status (30-day volume → bronze/silver/gold/platinum, rebate %). Returns the indexer status plus the static tier ladder.

List Ophis chains, split into tradeable (orderbook host is live — only route get_quote/build_order to these) and paused (settlement deployed but no live orderbook yet, e.g. MegaETH/HyperEVM — these throw). Each tradeable chain includes its orderbook host and GPv2Settlement contract (Optimism/MegaETH/HyperEVM are non-canonical) and partner-fee config. No input.