Posuer: MCP Manager and Interposer

Name: Posuer: MCP Manager and Interposer
Author: jkoelker

@jkoelker

Posuer: MCP Manager and Interposer について

A Model Context Protocol (MCP) manager that connects LLM clients to multiple backend servers, aggregating capabilities while simplifying configuration and deployment.

基本情報

カテゴリ

その他

ライセンス

MIT

ランタイム

トランスポート

stdio

公開者

jkoelker

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概要

What is Posuer?

Posuer is a Model Context Protocol (MCP) manager and interposer that consolidates multiple MCP servers into a single connection point for LLM clients like Claude Desktop. It aggregates capabilities, manages server configurations, and intelligently routes requests to the appropriate backend servers.

How to use Posuer?

Build Posuer from source using Go (1.23+), then run the binary with a YAML configuration file. Use the -config flag to specify a custom config path and -watch to enable dynamic configuration reloading. For Claude Desktop, add Posuer as an MCP server in claude_desktop_config.json with the command /path/to/posuer and arguments ["-watch"].

Key features of Posuer

Dynamic server management with hot reloading
Aggregates capabilities from multiple servers
Routes requests to appropriate backends
Supports stdio and SSE transport types
Runs servers in Docker containers automatically
Enables fine-grained capability filtering

Use cases of Posuer

Consolidate multiple MCP servers into one endpoint for Claude Desktop
Dynamically add or remove servers without restarting the client
Isolate MCP servers using Docker containers for security
Rotate API keys or update endpoints on-the-fly with config watching

FAQ from Posuer

What dependencies are required to run Posuer?

Go 1.23 or higher and access to MCP servers (e.g., filesystem, weather, search).

How does dynamic configuration reloading work?

Use the -watch flag to enable file watching; when the configuration file is modified, Posuer automatically loads and applies the changes without restarting.

Can I run MCP servers in containers?

Yes, you can specify a container image in the configuration, or Posuer will auto-detect containers for npx and uvx commands using node:alpine and uv:alpine images respectively.