flatten-mcp — MCP Server 安装配置（官方 MCP Registry）

{
  "id": "io.github.shayaShav/flatten-mcp",
  "type": "mcp-server",
  "version": "2.2.0",
  "displayName": "flatten-mcp",
  "description": "Flatten Claude Code sessions: keep every prompt and event verbatim, resume at a lower token count.",
  "repository": {
    "url": "https://github.com/shayaShav/flatten-mcp",
    "source": "github"
  },
  "homepage": "https://github.com/shayaShav/flatten-mcp#readme",
  "distribution": {
    "packages": [
      {
        "registryType": "npm",
        "identifier": "flatten-mcp",
        "version": "2.2.0",
        "transport": "stdio",
        "environmentVariables": [
          {
            "name": "FLATTEN_COUNT_EXACT",
            "description": "Optional. Set to 1 to count token savings exactly via Anthropic's count_tokens endpoint (requires ANTHROPIC_API_KEY). Off by default: key presence alone never triggers a network call."
          },
          {
            "name": "ANTHROPIC_API_KEY",
            "description": "Optional. API key for the exact token count; ignored unless FLATTEN_COUNT_EXACT=1.",
            "isSecret": true
          },
          {
            "name": "FLATTEN_COUNT_MODEL",
            "description": "Optional. Model id used for the exact token count (default: claude-haiku-4-5-20251001)."
          },
          {
            "name": "FLATTEN_INMEMORY_TOOLS",
            "description": "Optional. Set to 1 to also register the in-memory flatten_messages/unflatten_messages tools alongside the three disk tools. Off by default to keep the local tool surface lean."
          },
          {
            "name": "CLAUDE_CONFIG_DIR",
            "description": "Optional. Claude config dir whose projects/ session store is read (default: ~/.claude). The same variable Claude Code uses for profiles, so an alternate-profile server targets its own sessions automatically; override per call with the claude_dir argument."
          }
        ]
      }
    ],
    "remotes": []
  },
  "dependencies": [],
  "installTargets": [
    "claude-code",
    "claude-desktop",
    "cursor",
    "vscode"
  ],
  "keywords": [],
  "provenance": {
    "origin": "official-mcp-registry",
    "originalId": "io.github.shayaShav/flatten-mcp",
    "originalUrl": "https://registry.modelcontextprotocol.io/v0.1/servers/io.github.shayaShav%2Fflatten-mcp/versions/latest",
    "isOfficial": true,
    "status": "active"
  }
}