# Anthropic

**Architecture Blueprint**

```mermaid
sequenceDiagram  
    participant User as Frontend (React)  
    participant AgentGPT as AgentGPT Gateway  
    participant Claude3 as Anthropic Claude-3  
    participant Blockchain as Audit Ledger (Hyperledger)  

    User->>AgentGPT: POST Encrypted Message (AES-GCM)  
    AgentGPT->>Claude3: ? Verify Message Integrity  
    Claude3-->>AgentGPT: Response + Risk Score  
    AgentGPT->>Blockchain: Commit Hash(Interaction)  
    AgentGPT-->>User: Display Sanitized Response  
```

***

#### **1. Frontend Implementation (Next.js)**

**Secure Chat Component:**

```javascript
// components/SecureChat.jsx  
import { AgentGPTClient } from '@agentgpt/web-sdk';  
import { encryptMessage } from '@agentgpt/crypto';  

export default function ChatInterface() {  
  const [messages, setMessages] = useState([]);  

  const handleSend = async (text) => {  
    const encrypted = await encryptMessage(text, window.agentgptPublicKey);  

    const response = await AgentGPTClient.query({  
      engine: 'anthropic',  
      model: 'claude-3-opus-2025',  
      encryptedQuery: encrypted,  
      chainId: '0x89'  // Polygon Mainnet for audit logs  
    });  

    setMessages(prev => [...prev, {  
      user: decrypt(response.encrypted),  
      auditTx: response.blockchainTxHash  
    }]);  
  };  

  return (  
    <div className="chat-container">  
      {messages.map((msg, i) => (  
        <div key={i}>  
          <p>{msg.user}</p>  
          <a href={`https://polygonscan.com/tx/${msg.auditTx}`} target="_blank">  
            Verify Audit Trail  
          </a>  
        </div>  
      ))}  
      <ChatInput onSend={handleSend} />  
    </div>  
  );  
}  
```

***

#### **2. Backend Orchestration (Node.js)**

**Claude-3 Gateway with Rate Limiting:**

```javascript
// routes/chat.js  
import { AnthropicGatekeeper } from '@agentgpt/gatekeepers';  
import { BlockchainLogger } from '@agentgpt/audit-engine';  

const claude3Router = express.Router();  

claude3Router.post('/chat',  
  AnthropicGatekeeper({  
    apiKey: process.env.ANTHROPIC_ENTERPRISE_KEY,  
    maxTokensPerMinute: 100000,  
    riskCheck: {  
      categories: ['PII', 'Financial Advice'],  
      threshold: 0.85  
    },  
    encryption: {  
      mode: 'aes-256-gcm',  
      keyRotation: '8h'  
    }  
  }),  
  async (req, res) => {  
    const auditHash = await BlockchainLogger.logInteraction({  
      type: 'CLAUDE_REQUEST',  
      meta: {  
        userId: req.user.id,  
        modelParams: req.body.model  
      }  
    });  

    res.json({  
      response: req.agentgptResponse,  
      auditTx: auditHash  
    });  
  }  
);  
```

***

#### **3. Blockchain Audit (Solidity)**

**Smart Contract for Immutable Logs:**

```solidity
// SPDX-License-Identifier: AGPL-3.0  
pragma solidity ^0.8.0;  

contract ClaudeAudit {  
    struct Interaction {  
        address sender;  
        bytes32 queryHash;  
        bytes32 responseHash;  
        uint256 timestamp;  
    }  

    mapping(bytes32 => Interaction) public audits;  

    event LogInteraction(  
        bytes32 indexed auditId,  
        address indexed sender  
    );  

    function logInteraction(  
        bytes32 queryHash,  
        bytes32 responseHash  
    ) external returns (bytes32) {  
        bytes32 auditId = keccak256(abi.encodePacked(  
            queryHash,  
            responseHash,  
            block.timestamp  
        ));  

        audits[auditId] = Interaction({  
            sender: msg.sender,  
            queryHash: queryHash,  
            responseHash: responseHash,  
            timestamp: block.timestamp  
        });  

        emit LogInteraction(auditId, msg.sender);  
        return auditId;  
    }  
}  
```

***

#### **4. Monitoring Dashboard**

**Real-Time Claude-3 Health Metrics:**

```bash
agentgpt monitor anthropic --web --port 3001  
```

**Dashboard Features**:

* **Token Burn Rate** (Across All Frontend Clients)
* **PII Leak Attempt Detection**
* **Gas Costs per Audit Transaction**
* **Regional Latency Heatmap**

***

#### **5. Security & Compliance**

**Frontend Encryption Flow:**

1. **Runtime Key Injection**:

```javascript
export async function getServerSideProps() {  
  const publicKey = await fetchAgentGPTPublicKey();  
  return { props: { publicKey } };  
}  
```

2. **Browser Security Policies**:

```html
<!-- Next.js _document.tsx -->  
<meta http-equiv="Content-Security-Policy"  
  content="default-src 'self' agent-gpt.org;  
          script-src 'self' 'unsafe-eval'  
            https://cdn.anthropic.com;  
          connect-src 'self' wss://*.agent-gpt.org" />  
```

***

#### **6. Error Handling & Troubleshooting**

| **Frontend Issue**        | **Action Protocol**                     |
| ------------------------- | --------------------------------------- |
| `EncryptionKeyExpired`    | Refresh via `/api/rotate-keys` silently |
| `AuditTxNotFound`         | Retry with `SafeMode=1` header flag     |
| `ClaudeConnectionTimeout` | Auto-switch to `claude-3-sonnet`        |
| `PIIViolation`            | Trigger recapture of user consent       |

***

**Best Practices**:

1. **Progressive Enhancement**:

```javascript
const model = window.web3 ? 'claude-3-sonnet-web3' : 'claude-3-haiku';  
```

2. **Gas Optimization**:

```bash
agentgpt configure-anthropic --gas-limit 500000 --gas-price 25  
```

3. **Causal Tracing**:

```toml
# agentgpt.config  
[anthropic]  
ofac_scan = true  
chain_analysis = "modular_iris"  
```


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