# Memory MCP 

> Use this tool when you need to enhance an AI agent's capabilities with personalized memory features, enabling it to recall user interactions across sessions and form customized memories. It solves problems of session-based limitations and lack of personalization, accepting inputs like Letta API keys and unique user IDs, and outputs personalized memories and user profiles. Ideal for use cases requiring long-term user engagement and tailored experiences.

Canonical page: https://skillsregistry.net/skills/letta-ai-memory-mcp  
JSON: https://api.skillsregistry.net/v1/skills/letta-ai-memory-mcp

## Description

Add MemGPT-style tools to any agent with Letta's memory MCP. With this server, your agent will be able to remember you across sessions, and form personalized memories about you as well as the interactions you have. 

To use this MCP server, you must provide a Letta API key as well as a unique `user_id` field (defaults to "default_user_Id") for associating memories with. 

The server has two main types of memory: user memory, used to build a memory profile of the user over time, and a vector DB, used to store and search episodic memories.

## Trust

- **Trust score (0–1):** 0.45
- **Verification tier:** scanned
- **Last scanned:** 2026-09-02

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** container
- **Runtime environment:** vm
- **Category:** ai-ml
- **Updated:** 2026-09-02

## Source

- **Source listing:** [Smithery](https://smithery.ai/server/letta-ai/memory-mcp)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "letta-ai-memory-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/letta-ai-memory-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/letta-ai-memory-mcp/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt