remote-capable server
The server can be hosted and run remotely because it primarily relies on remote services or has no dependency on the local environment.
Integrations
Uses .env files for configuration, allowing storage of Letta API credentials and endpoints securely outside of the codebase.
Repository hosting for the Letta MCP server, enabling version control, contribution workflows, and distribution of the server code.
Provides package management for the Letta MCP server, managing dependencies and offering scripts for building and running the server.
Letta MCP Server
A server that provides tools for agent management, memory operations, and integration with the Letta system.
Quick Setup
Option 1: Run with Node.js
Option 2: Run with Docker
Directory Structure
- index.js - Main entry point
core/- Core server functionalitytools/- Individual tool implementationstransports/- Server transport implementations (stdio and SSE)
Available Tools
Agent Management
| Tool | Description | Required Parameters | Optional Parameters |
|---|---|---|---|
create_agent | Create a new Letta agent | name, description | model, embedding |
list_agents | List all available agents | - | filter |
prompt_agent | Send a message to an agent | agent_id, message | - |
get_agent | Get agent details by ID | agent_id | - |
modify_agent | Update an existing agent | agent_id, update_data | - |
delete_agent | Delete an agent | agent_id | - |
clone_agent | Clone an existing agent | source_agent_id, new_agent_name | override_existing_tools, project_id |
bulk_delete_agents | Delete multiple agents | - | agent_ids, agent_name_filter, agent_tag_filter |
Memory Management
| Tool | Description | Required Parameters | Optional Parameters |
|---|---|---|---|
list_memory_blocks | List all memory blocks | - | filter, agent_id, page, pageSize, label |
create_memory_block | Create a new memory block | name, label, value | agent_id, metadata |
read_memory_block | Read a memory block | block_id | agent_id |
update_memory_block | Update a memory block | block_id | value, metadata, agent_id |
attach_memory_block | Attach memory to an agent | block_id, agent_id | label |
Tool Management
| Tool | Description | Required Parameters | Optional Parameters |
|---|---|---|---|
list_tools | List all available tools | - | filter, page, pageSize |
list_agent_tools | List tools for a specific agent | agent_id | - |
attach_tool | Attach tools to an agent | agent_id | tool_id, tool_ids, tool_names |
upload_tool | Upload a new tool | name, description, source_code | category, agent_id |
bulk_attach_tool_to_agents | Attach a tool to multiple agents | tool_id | agent_name_filter, agent_tag_filter |
Additional Tools
- Model Management:
list_llm_models,list_embedding_models - Archive Management:
list_passages,create_passage,modify_passage,delete_passage - MCP Server Management:
list_mcp_servers,list_mcp_tools_by_server - Import/Export:
export_agent,import_agent
Docker Operations
Configuration with MCP Settings
Add the server to your mcp_settings.json:
For remote instances, use the URL configuration:
You must be authenticated.
Tools
An MCP server implementation that enables interaction with the Letta API for managing agents, memory blocks, and tools in the Letta system.