MCP Client Toolkit
About
TypeScript client library and utilities for remote Model Context Protocol (MCP) servers
Explore
- OAuth 2.0 authentication support
- Automatic transport fallback (HTTP → SSE)
- Connection management
- Tool discovery and execution
- Real-time notifications
- Reusable CLI command utilities
Import the library and create an MCPClient instance with an OAuth handler and callback port, then call connect() with the server URL. Use the exported CLI utility functions (listTools, showToolDetails, callTool) to interact with the connected server.
TypeScript client library and utilities for remote Model Context Protocol (MCP) servers.
TypeScript client library and utilities for remote Model Context Protocol (MCP) servers.
Basic Client
import { MCPClient, BrowserOAuthHandler } from 'mcp-client-toolkit';
const client = new MCPClient({
callbackPort: 8090,
oauthHandler: new BrowserOAuthHandler(8090)
});
await client.connect('http://localhost:3000/mcp');
CLI Utilities
import {
listTools,
showToolDetails,
callTool,
parseToolCallCommand
} from 'mcp-client-toolkit';
const mcpClient = client.getClient();
if (mcpClient) {
await listTools(mcpClient);
await showToolDetails(mcpClient, 'tool-name');
await callTool(mcpClient, 'tool-name', { param: 'value' });
}
Exports
- MCPClient: Main client class
- BrowserOAuthHandler, CustomOAuthHandler: OAuth handlers
- ConnectionManager: Connection management
- listTools, showToolDetails, callTool: CLI utilities
- formatJsonSchema, generateExampleArgs: Schema utilities
- Types: MCPClientConfig, OAuthHandler, TransportType, etc.
Features
- OAuth 2.0 authentication support
- Automatic transport fallback (HTTP → SSE)
- Connection management
- Tool discovery and execution
- Real-time notifications
- Reusable CLI command utilities
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