LedgerMem Server

Model Context Protocol server for LedgerMem Memory — exposes long-term memory tools to any MCP client (Claude Desktop, Cursor, Windsurf, VS Code, Zed).

Tools

Tool	What it does
memory_search	Hybrid 7-strategy retrieval over the workspace memory store.
memory_add	Store an atomic fact with optional metadata.
memory_update	Patch an existing memory's content or metadata.
memory_delete	Permanently remove a memory by ID.
memory_list	Paginate through memories (cursor-based).

All calls are scoped to a workspace and (optionally) an actor.

Install

Claude Desktop / Cursor / Windsurf / VS Code / Zed

npx -y @ledgermem/mcp-server

Or wire it into the client config directly. Example for Claude Desktop (~/Library/Application Support/Claude/claude_desktop_config.json):

{
  "mcpServers": {
    "ledgermem": {
      "command": "npx",
      "args": ["-y", "@ledgermem/mcp-server"],
      "env": {
        "LEDGERMEM_API_KEY": "lk_live_...",
        "LEDGERMEM_WORKSPACE_ID": "ws_..."
      }
    }
  }
}

Get an API key at https://app.proofly.dev/settings/api-keys.

Hosted (HTTP/SSE) at mcp.proofly.dev

npx -y install-mcp@latest https://mcp.proofly.dev/mcp --client claude

(OAuth flow lands in v0.2 — until then the hosted endpoint accepts x-ledgermem-api-key + x-ledgermem-workspace-id headers from trusted clients.)

Develop

npm install
cp .env.example .env   # fill in LEDGERMEM_API_KEY + LEDGERMEM_WORKSPACE_ID
npm run dev            # stdio
npm run dev:http       # HTTP/SSE on :8787
npm run build          # bundle to dist/

Architecture

• stdio (src/cli.ts): one process per MCP client connection, env-configured.
• HTTP/SSE (src/http.ts): single long-running process for hosted use, header-or-OAuth auth.
• Both transports share src/server.ts (tool registration + dispatch) and src/api-client.ts (typed REST wrapper).

The server deliberately does NOT depend on @ledgermem/memory (the JS SDK) so it can ship independently.

License

MIT