Serve MCP statelessly so any replica can answer any request

We added MCPConfig(stateless=True), which serves /mcp without tracking sessions. With it on, any replica can answer any request, so a multi-instance deployment no longer needs session affinity in front of it.

from agno.os import AgentOS, MCPConfig
 
agent_os = AgentOS(agents=[assistant], mcp=MCPConfig(stateless=True))

We left it off by default, because dropping session state also drops server-initiated notifications and SSE resumability. Turn it on when horizontal scale matters more than those.

See the cookbook, and learn more about the AgentOS MCP server in the documentation.