LangChain Integration

INFO

kova uses MCP (Model Context Protocol) as its sole agent interface. LangChain agents can connect to the kova MCP server using LangChain's MCP tool integration.

Setup

Connect a LangChain agent to kova via the MCP server:

import {
  AgentWallet, Policy, LocalSigner, MemoryStore, SolanaAdapter,
  createMcpServer,
} from "@kova-sdk/wallet";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";

// 1. Configure the wallet
const wallet = new AgentWallet({ signer, chain, policy, store });

// 2. Create and start the MCP server
const server = createMcpServer(wallet);
await server.connect(new StdioServerTransport());

LangChain's MCP integration allows any LangChain agent to discover and call the wallet tools exposed by the MCP server. Policy enforcement happens automatically on every tool call.

How It Works

1. Your LangChain agent connects to the kova MCP server via an MCP client
2. The agent discovers available tools via the MCP listTools method
3. Tools are automatically converted to LangChain-compatible tool definitions
4. When the agent calls a tool, the MCP server validates, enforces policies, and executes

Further Reading

• AI Integration Overview -- Full MCP server configuration, options, and all available tools
• Server Setup -- Run the MCP server as a service