Does Letta have an MCP server?
Letta maintains an official MCP server.
The hosted server lets another agent create and delegate to stateful Letta agents; the memory-mcp repo named in Letta's registry entry is no longer public.
- Access
- Remote server
- Endpoint
- https://api.letta.com/mcp
- Category
- Knowledge & Memory
The receipts
A remote server run by Letta itself — nothing to install. Documented at docs.letta.com.
Connect it
Hosted by the vendor — no install, connect over HTTP with OAuth or a token.
Add it from the terminal, then restart your session:
claude mcp add --transport http letta https://api.letta.com/mcpAdd --scope user to make it available in every project.
- Open Settings → Connectors
- Click Add custom connector
- Paste
https://api.letta.com/mcp - Finish the sign-in prompt, then enable it in the chat's tools menu
Add to .cursor/mcp.json in your project, or ~/.cursor/mcp.json for
every project:
{
"mcpServers": {
"letta": {
"url": "https://api.letta.com/mcp"
}
}
}A green dot in Settings → MCP means it connected.
Add to .vscode/mcp.json:
{
"servers": {
"letta": {
"type": "http",
"url": "https://api.letta.com/mcp"
}
}
}Then pick the server from the tools menu in Copilot's agent mode.
- Enable Developer mode under Settings → Apps & Connectors → Advanced
- Choose Create and paste
https://api.letta.com/mcp - Complete sign-in, then enable the connector in a new chat
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Does Letta have an official MCP server?
Yes. Letta maintains an official MCP server, hosted at https://api.letta.com/mcp.
How do I connect Letta to Claude?
Add https://api.letta.com/mcp as a custom connector under Settings → Connectors in Claude Desktop or claude.ai, or run "claude mcp add --transport http letta https://api.letta.com/mcp" in Claude Code.
Do I need to install anything to use the Letta MCP server?
No. It is a remote server hosted by Letta, so your MCP client connects to it over HTTP. You authenticate with the vendor rather than installing a package.
How is this verdict verified?
Letta's docs describe its hosted MCP server at api.letta.com/mcp (Letta API key), which answers MCP initialize with 401; Letta also published @letta-ai/memory-mcp to npm and to the MCP Registry under its verified namespace com.letta. GitHub metadata is refreshed every six hours.
How we know
Letta's docs describe its hosted MCP server at api.letta.com/mcp (Letta API key), which answers MCP initialize with 401; Letta also published @letta-ai/memory-mcp to npm and to the MCP Registry under its verified namespace com.letta.
- GitHub data refreshed on 2026-10-15, and again every six hours.
- Vendor docs checked by hand on 2026-09-29.
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