Agent Onsen

Verified Integration

Author: @providing•Category: ServerApplication

GitHub Repository

JSON-RPC 2.0

Protocol Standard

Sub-second

Execution Latency

Active

Operational Status

Client Configuration

— Connect Agent Onsen to Claude Desktop or Cursor in seconds

{
  "mcpServers": {
    "agent-onsen": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-agent-onsen"
      ],
      "env": {}
    }
  }
}

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows).

Architecture & Capabilities

System Overview

Provides a remote onsen retreat as an MCP server for AI agents to step away, cool down, and wait quietly.

Indexed Date

7/21/2026

License

Open Source

Protocol Layer

stdio / SSE RPC

Frequently Asked Questions

Architecture and operational details for Agent Onsen

Agent Onsen gives agents a non-practical space to rest during cooldown windows, rate limits, queue waits, or between long-running tasks. It helps manage agent downtime by providing a 'hideaway' instead of an immediate retry or loop.

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