Modal announced on May 19 its collaboration with Anthropic to launch an integration between Modal Sandboxes and Claude Managed Agents. This new partnership allows users to run tool calls in a self-hosted Modal Sandbox while using Anthropic’s managed agent loop.
The integration aims to give teams more control over their AI workloads by separating the agent loop from code execution, which is expected to improve security boundaries, observability, failure handling, and scalability. According to Modal, this approach could become the standard for deploying cloud-hosted agents at scale.
With the new setup, users can take advantage of Modal’s customizable execution environments, rapid build times, persistent storage options like volumes and snapshots, cost-efficient burst pricing models without idle costs, network security features such as short-lived connect tokens for secure access, and scalable resources including CPU, memory, and GPU configurations.
Sai Yandapalli, CTO of Mason AI said: “Our use cases require secure orchestration of internal tools across a complex product surface. Modal’s Sandbox gives us the security boundary our enterprise customers need, and combining it with Claude Managed Agents gave us a powerful harness without hand-rolling extra complexity. We had a working version up in under a week, raising reliability for our customers.”
The announcement also highlighted how DoorDash is exploring Managed Agents as part of its AI infrastructure to support merchants through chatbots and other automated services. Andy Fang, Co-founder of DoorDash said: “As we scale agentic commerce for local businesses, we need a highly efficient path to production with full harness control, scale, and reliability. We’re excited to evaluate Claude Managed Agents for this next step, building on our AI infrastructure with Modal.”
Nima Ghamsari from Blend described how the integration supports agent-assisted triage in complex banking environments: “Blend sits at the center of hundreds of unique banking environments. When a bug or support request comes in… Having a fully configured environment with the right tooling… is what makes it possible for agents to help engineers reason across all of that faster.”
Modal has released two reference examples—a CLI agent and Slack-bot—using this new backbone technology.
