Meta MCP Proxy
Meta MCP 代理
一个灵活的模型上下文协议 (MCP) 代理,支持跨多个 MCP 服务器和 JavaScript 函数发现和执行工具。如果您拥有大量工具,则可以减少上下文事件。此 MCP 充当其他 MCP(或库)的包装器,执行某种本地 RAG(检索增强生成)操作以缩减上下文大小,为 LLM 提供两种方法(发现和执行),并要求 LLM 简洁地进行发现。执行方法是一个简单的代理
我们极力建议添加配置discoverDescriptionExtras来扩展有关工具用途的详细信息以及 llm 应该将其用于哪些类型的主题。
特征
🌉统一工具发现:跨多个 MCP 服务器搜索工具
🔌代理执行:将工具调用路由到适当的服务器
🔍智能搜索:通过模糊匹配找到最适合工作的工具
🧩 JavaScript 集成:将自定义 JavaScript 函数公开为 MCP 工具
📝可配置:从文件或命令行参数加载配置
Related MCP server: mcptool
用法
🧱 安装
编辑文件~/Library/Application Support/Claude/claude_desktop_config.json
并添加以下内容
{
"mcpServers": {
"mcp-openapi-proxy": {
"command": "npx",
"args": ["@nullplatform/meta-mcp-proxy","-f","config.json"]
}
}
}配置文件格式
您的config.json应该遵循以下结构:
{
"discoverDescriptionExtras": "Additional description for discovery",
"discoverLimit": 10,
"mcpServers": {
"server-name": {
"command": "command-to-execute",
"args": ["arg1", "arg2"],
"env": {
"ENV_VAR1": "value1",
"ENV_VAR2": "value2"
},
"transport": "stdio"
}
}
}例如
{
"discoverDescriptionExtras": "Api used to manage a pet store with access to pets, pet types, users, orders and store",
"mcpServers": {
"mcp-petstore": {
"command": "uvx",
"args": ["mcp-openapi-proxy"],
"env": {
"OPENAPI_SPEC_URL": "https://petstore.swagger.io/v2/swagger.json",
"API_KEY": "xxxxx"
}
}
}
}与 Claude 的 0-Shot 对话示例
该示例使用宠物商店的演示配置,几乎没有对 API 的描述

作为图书馆
您还可以在自己的 JavaScript 应用程序中将 Meta MCP Proxy 用作库:
import { MCPProxy } from '@nullplatform/meta-mcp-proxy';
// Create a new proxy instance
const mcpProxy = new MCPProxy({
mcpServers: {
"my-server": {
"command": "path/to/server",
"args": [],
"env": {}
}
},
discoverLimit: 10
});
// Register a custom JavaScript function
mcpProxy.registerJsFunction(
"myFunction",
"Description of my function",
{
properties: {
param1: {
type: "string",
description: "First parameter"
},
param2: {
type: "number",
description: "Second parameter"
}
},
required: ["param1"]
},
async ({ param1, param2 }) => {
// Implementation goes here
return {
content: [
{
type: "text",
text: JSON.stringify({ result: `Processed ${param1}` })
}
]
};
}
);
// Start the MCP server
await mcpProxy.startMCP();使用 meta-mcp-proxy 作为库创建 mcp 的示例
执照
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