Connecting Letta to Remote MCP Servers
Using Streamable HTTP and SSE transports
Remote MCP servers work with both Letta Cloud and self-hosted deployments. Streamable HTTP is recommended for new integrations; SSE is deprecated but supported for legacy compatibility.
Streamable HTTP
Recommended transport with Bearer token auth support.
ADE: Tool Manager → Add MCP Server → Streamable HTTP
SSE (Deprecated)
SSE is deprecated. Use Streamable HTTP for new integrations.
For legacy MCP servers that only support SSE.
ADE: Tool Manager → Add MCP Server → SSE
Using Tools
ADE: Agent → Tools → Select MCP tools