Sanctum: Letta MCP Server v3.0.0 — Major Overhaul, Modular Plugins, & Self-Hosted Dashboard

Sanctum: Letta MCP Server v3.0.0 is a major update, introducing a modular plugin architecture, self-configuration dashboard, and Docker-ready deployment—enabling powerful, production-grade, self-hosted AI agent orchestration.

Today marks a major new release for the Sanctum Suite: Sanctum: Letta MCP Server v3.0.0. This update is a ground-up rewrite that transforms Letta/Sanctum agents into truly modular, self-configurable, production-ready orchestration layers—ideal for open, persistent, and self-hosted AI agent deployments.

Repo: github.com/actuallyrizzn/sanctum-letta-mcp

🚀 Key Features in v3.0.0

Agents now have access to a dashboard interface for managing their own configuration and settings—enabling user- and agent-driven customization in real time.

Every MCP function is now modular. Write command-line tools to spec, drop them in the plugin directory, and MCP will auto-load them. Customization is now as simple as developing and registering new plugins.

Command-line plugins are automatically discovered and made available to agents without server restarts or manual intervention—streamlining workflow automation and extension.

Designed and tested with the Docker self-hosted Letta instance, featuring network-layer security best practices to keep agents safe from bad actors and unwanted traffic.

Leveraging Microsoft’s FastMCP for rapid, reliable, and scalable agent orchestration.

Agent Dashboard for Self-Configuration
Full Plugin-Based Architecture
Autoloading Commands
Production-Ready & Self-Hosted
FastMCP Integration & Performance
Complete Documentation & Plugin Guides

Extensive docs and step-by-step guides for plugin development, migration, and integration.

🧩 Example Plugin Use Cases

botfather: Telegram bot API integration for automated messaging and notifications
devops: Agent-based deployment, monitoring, and rollback tools
Custom Plugins: Easily add your own tools—just write a command-line interface and let MCP handle the integration

🔒 Security & Testing

Network-Layer Security: Hardened for self-hosted deployments with Docker and container-based isolation
Comprehensive Test Suite: 100% test coverage for core features, including unit, integration, and E2E scenarios

📦 How to Upgrade

Pull the latest release
Review migration notes for v3.0.0 in the repo
Install or update plugins per new CLI and directory conventions

🛠️ Why This Matters

This release establishes Sanctum: Letta MCP Server as a leading open-source orchestration framework for persistent, multi-agent environments—whether you’re running a single AI agent or orchestrating an ecosystem. The modular plugin system empowers both developers and end-users to extend agent capabilities on-the-fly, while the new dashboard makes day-to-day operations seamless.

👥 Get Involved

Explore the new dashboard and modular plugin system
Contribute plugins or workflow enhancements via GitHub PRs
Share feedback or join the discussion as Sanctum evolves toward the next wave of open, self-managing agentic AI