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Ophis

Ophis is an intent-based DEX aggregator. Choose the tokens and amount, review the quote and spending limit, and sign with your own wallet. Solvers find a route that satisfies your signed order.

The standalone app also accepts supported external balances through NEAR Intents. Select the source and destination in the same token pickers, review the quote and refund address, then fund the quoted deposit. See Networks & assets for coverage and recovery.

Ophis builds on CoW Protocol. The Intent API also supports natural-language requests for developers and agents. The full source is at github.com/ophis-fi/ophis.

Choose tokens and amount → review quote → sign order → settle

Core principles​

  • Intent-based, not router-based. You sign your desired outcome; solvers compete on how to deliver it.
  • MEV-protected by design. Orders settle through a batch auction where trades clear at a uniform price per token pair, mitigating front-running and sandwiching. This is a mechanism-level defense, not an absolute guarantee against every adversarial condition.
  • Wallet-authorized. Standard ERC-20 orders keep funds in your wallet until settlement. Native-token orders and bridge routes can require onchain deposits; their custody, gas and recovery rules differ. See Security & audits.
  • Transparent, chain-aware fees. The standard batch-auction policy charges a 1 bp base plus 80% of reference-quote improvement on volatile pairs (99 bps cap), or 50% on stable pairs (20 bps cap). On CoW-hosted chains, CoW Protocol's own fees apply on top. Arc applies the same capped backend improvement policy for in-market orders.
  • Open. The full frontend, intent-parser proxy, and infra runbooks are public.

What's in these docs​

SectionWhat you'll find
Getting startedMake your first swap; how the three-step flow works; supported networks.
How it worksIntent lifecycle, batch auctions, the parser proxy, and settlement.
Fees & rebatesStandard pricing, hosted upstream fees and rebates.
Networks & assetsApp versus SDK coverage, Arc bridges, token labels and feature availability.
Affiliate programShare a referral code, earn 8% of Ophis's verified base fee on eligible referred trades.
Intent APIThe public POST /api/intent endpoint, parse English into a structured order.
AI agent integrationWire the intent API into LangChain, AutoGPT, or your own agent.
Security & auditsCustody model, settlement contracts, and audit posture.
FAQCommon questions about fees, networks, MEV, and custody.