@ophis/agentkit-ophis

A Coinbase AgentKit action provider that lets an AI agent swap ERC-20 tokens via Ophis (a CoW Protocol fork): gasless, MEV-protected, intent-based. Every order carries the Ophis partner fee plus your referral code in its appData, so you earn the 8–12% rebate on the swap volume your agent routes.

Install

npm i @ophis/agentkit-ophis @coinbase/agentkit

Use

import { AgentKit } from '@coinbase/agentkit';
import { ophisActionProvider } from '@ophis/agentkit-ophis';

const agentKit = await AgentKit.from({
  walletProvider, // any EvmWalletProvider (Viem, CDP, Privy, ZeroDev…)
  actionProviders: [
    ophisActionProvider({ referralCode: process.env.OPHIS_REFERRAL_CODE }),
    // (or set OPHIS_REFERRAL_CODE and call ophisActionProvider())
  ],
});

This registers an OphisActionProvider_swap action:

| Param | | |---|---| | sellToken | ERC-20 address (native ETH not supported — use WETH) | | buyToken | ERC-20 address | | sellAmount | whole units, e.g. "1.5" | | slippageBps | max slippage in bps, or null for the default (50 = 0.5%) |

It quotes against the Ophis orderbook, signs the order EIP-712 via the wallet provider, approves the CoW vault relayer once, submits, and returns a JSON string with the order UID + an explorer URL.

Notes

• ERC-20 → ERC-20 only. Native-ETH sells need CoW eth-flow (a separate path); wrap to WETH first.
• The agent's wallet is the order owner and receiver — funds only ever move through the audited CoW settlement contract, back to the same wallet.
• Supported chains: Ethereum, Gnosis, Arbitrum, Base, Optimism, Polygon, Avalanche.
• Get a referral code (it carries the rebate): https://docs.ophis.fi/ai-agents

The order-flow core is @ophis/agent-swap; see also @ophis/plugin-goat for the GOAT SDK.