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mcp-stdio-to-streamable-http-adapter MCP Server

@pyroprompts

代码仓库

关于 mcp-stdio-to-streamable-http-adapter MCP Server

Proxy through a STDIO MCP Server to interact with Streamable HTTP MCP Servers

基本信息

分类

开发工具

许可证

MIT

运行时

node

传输方式

stdio

发布者

pyroprompts

配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "my-saas-app-development": {
      "command": "node",
      "args": [
        "/path/to/mcp-stdio-to-streamable-http-adapter/build/index.js"
      ],
      "env": {
        "URI": "http://localhost:3002/mcp",
        "MCP_NAME": "local-custom-streamable-http-adapter"
      }
    },
    "pyroprompts": {
      "command": "node",
      "args": [
        "/path/to/mcp-stdio-to-streamable-http-adapter/build/index.js"
      ],
      "env": {
        "URI": "https://api.pyroprompts.com/mcp",
        "MCP_NAME": "pyroprompts",
        "BEARER_TOKEN": "abcdefg"
      }
    }
  }
}

工具

未检测到工具

工具是从 README 中自动提取的。维护者可以在 ## Tools 标题下列出工具,即可填充这部分内容。

概览

What is mcp-stdio-to-streamable-http-adapter?

This server bridges the gap between MCP clients that support only STDIO transport and MCP servers that use the Streamable HTTP Transport. It acts as a STDIO MCP server that relays requests to a Streamable HTTP MCP server, enabling any STDIO-capable client to immediately use Streamable HTTP servers. It is intended for developers who want to build Streamable HTTP MCP servers today while clients lack native support.

How to use mcp-stdio-to-streamable-http-adapter?

Configure it in your MCP client (e.g., Claude Desktop or LibreChat) by adding a server entry that runs npx @pyroprompts/mcp-stdio-to-streamable-http-adapter or a local build of build/index.js. Set the required environment variable URI to the URL of your Streamable HTTP MCP server; optionally set MCP_NAME and BEARER_TOKEN. Multiple instances can be added with different configurations.

Key features of mcp-stdio-to-streamable-http-adapter

  • Relays STDIO MCP calls to a Streamable HTTP MCP server
  • Supports optional bearer token authentication
  • Allows multiple Streamable HTTP servers via repeated configuration
  • Works with any STDIO-compatible MCP client
  • Installs via npx or local build

Use cases of mcp-stdio-to-streamable-http-adapter

  • Connect Claude Desktop to a Streamable HTTP MCP server without client updates
  • Use Streamable HTTP MCP servers in LibreChat or other STDIO‑only clients
  • Develop and test Streamable HTTP MCP servers immediately, before SDK support is widespread
  • Run multiple Streamable HTTP services side‑by‑side in the same client

FAQ from mcp-stdio-to-streamable-http-adapter

What problem does this adapter solve?

As of late April 2025, no MCP clients (except the Inspector) support the Streamable HTTP Transport defined in the March 26, 2025 spec. This adapter lets developers use Streamable HTTP servers today by wrapping them in a STDIO interface.

How is this different from the mcp‑remote package?

The README notes there are similarities, but does not detail specific differences.

What are the runtime requirements?

A Node.js environment is required to run the adapter via npx or a local build. The target Streamable HTTP server must be reachable from the adapter’s network.

Where does configuration data live?

Configuration is done in the client’s JSON config file (e.g., claude_desktop_config.json) or YAML for LibreChat. Environment variables URI, MCP_NAME, and BEARER_TOKEN are set there.

Is authentication supported?

Yes, an optional bearer token can be provided via the BEARER_TOKEN environment variable, which is sent in the Authorization header to the Streamable HTTP server.

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