Solo.io makes Agent Substrate and kagent generally available

Solo.io made enterprise releases of Agent Substrate and kagent generally available, and launch customers OutSystems and Swissquote already run the infrastructure in production. The releases support production deployments of agents.

Agents are the next major workload for Kubernetes, and the platform must evolve to handle the scale of individual agent sessions, each carrying its own state and context across multiple turns. At tens of millions of sessions, a dedicated pod for each one ties up resources while agents wait on models, tools, or human input.

Agent Substrate introduces the actor as its fundamental runtime unit. Each actor pairs an agent session with a sandbox that isolates execution and a gateway that governs who can reach it and what it can access. An execution model suspends idle sessions and resumes them on demand, which allows enterprises to scale on the Kubernetes infrastructure they already operate. State, identity, and access controls remain with the actor as underlying compute changes.

agentgateway serves as the actor's gateway, enforcing identity and policy controls on ingress and egress. kagent supplies the developer experience for building and managing agents, tools, and skills, with granular access control, agent tracing, infrastructure monitoring, and evaluations built from real execution traces. Enterprise support and air-gapped installation options are available for environments with strict security and operational requirements.

Solo partnered with engineering teams at OutSystems and Swissquote to bring the infrastructure into production. Co-maintaining the Agent Substrate project with Google, Solo develops the open-source foundation for agentic workloads. The community released Agent Substrate 1.0 following six months of momentum, with more than 6,000 GitHub stars and over 100 contributors from more than 40 organizations. A sizing calculator on the kagent project site helps users size environments and set service-level objectives.

“The next generation of applications will be agents.” said Idit Levine, founder and CEO of Solo.io. “We operate a sovereign AI stack, with full control over inference, infrastructure and the AI lifecycle.” said Andrew Boswell, Head Information Technology, Swissquote.