# Coinbase AgentKit

FervusAI provides a `FervusAIActionProvider` for Coinbase AgentKit, enabling AgentKit-based agents to pay for services using a FervusAI wallet governed by spending policy.

***

## Installation

```bash
npm install @fervusai/agentkit-provider
```

***

## Setup

```typescript
import { AgentKit } from "@coinbase/agentkit";
import { FervusAIActionProvider } from "@fervusai/agentkit-provider";

const fervusProvider = new FervusAIActionProvider({
  apiKey: process.env.FERVUS_API_KEY,
  walletId: process.env.FERVUS_WALLET_ID,
});

const agentKit = await AgentKit.from({
  // ... your existing AgentKit config
  actionProviders: [fervusProvider],
});
```

***

## Actions registered

| Action                | Description                                            |
| --------------------- | ------------------------------------------------------ |
| `fervus_pay`          | Send USDC from the agent's FervusAI wallet             |
| `fervus_balance`      | Get current USDC balance                               |
| `fervus_transactions` | List recent transactions                               |
| `fervus_pay_agent`    | Initiate an A2A escrow payment to another agent wallet |

***

## Example with LangChain + AgentKit

```typescript
import { AgentKit, CdpWalletProvider } from "@coinbase/agentkit";
import { FervusAIActionProvider } from "@fervusai/agentkit-provider";
import { getLangChainTools } from "@coinbase/agentkit-langchain";
import { ChatAnthropic } from "@langchain/anthropic";
import { createReactAgent } from "@langchain/langgraph/prebuilt";

const fervusProvider = new FervusAIActionProvider({
  apiKey: process.env.FERVUS_API_KEY,
  walletId: process.env.FERVUS_WALLET_ID,
});

const agentKit = await AgentKit.from({
  walletProvider: await CdpWalletProvider.configureWithWallet({ /* ... */ }),
  actionProviders: [fervusProvider],
});

const tools = getLangChainTools(agentKit);

const agent = createReactAgent({
  llm: new ChatAnthropic({ model: "claude-opus-4-6" }),
  tools,
});

// The agent can now reason about and execute payments
await agent.invoke({
  messages: [{ role: "user", content: "Search for the latest AI research papers and pay for API access if needed." }],
});
```

***

## Environment variables

| Variable           | Description                       |
| ------------------ | --------------------------------- |
| `FERVUS_API_KEY`   | Your FervusAI API key             |
| `FERVUS_WALLET_ID` | FervusAI wallet ID for this agent |

***

## Notes

The `FervusAIActionProvider` is independent of AgentKit's built-in CDP wallet. It does not replace the CDP wallet - it adds FervusAI payment actions alongside AgentKit's existing on-chain capabilities. The two can coexist in the same agent.


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